Sunday, 25 June 2017

Rudy Wins Blitz Championship

Congratulations to Rudy van Kemenade on winning the Welsh Blitz Championship, jointly with William Hewitt, against strong opposition including two FMs. Two of his wins are given below. Meanwhile, the Club is adjourning for the summer. Tuesday 27 June will be our last club night till we resume in September.

[Event "Welsh ch blitz"] [Site "?"] [Date "2017.06.17"] [Round "3"] [White "White, Michael"] [Black "Van Kemenade, R."] [Result "0-1"] [ECO "C42"] [WhiteElo "2258"] [BlackElo "1977"] [Annotator "Rudy"] [PlyCount "42"] [EventDate "2017.06.17"] 1. e4 {(FM)} e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 d5 (5... Nf6 6. d4 Be7 7. Bf4 O-O 8. Qd2 d5 9. Bd3 {M White-Van Kemenade, WLS ch Hensol Park, 2007,1-0 }) 6. Qe2 Be7 7. Nxe4 dxe4 8. Qxe4 O-O 9. Be2 (9. Bc4 {following Alekhine in 1918; is more active which led to two losses for Bl against Bujnoch & Byron at the Gibraltar Masters in early 2017}) 9... Re8 10. O-O Bd6 11. Qd3 Nc6 (11... b6 12. b3 Qf6 13. Rb1 Bb7 14. Bb2 Qh6 15. g3 Nd7 16. Rfe1 Nc5 17. Qc3 Rad8 18. d4 {Strobusch-Maahs, Ger ch Seniors, Magdeburg 2015,1/2-1/2}) 12. a3 (12. c3 Qf6 13. Bd1 Bf5 14. Qc4 Qg6 15. Qh4 Bd3 16. Re1 Rxe1+ 17. Nxe1 Re8 18. f3 Qh6 19. Qxh6 Rxe1+ 20. Kf2 Rf1+ 21. Ke3 gxh6 {Loman-Marshall, London m 1902,0-1}) 12... Qf6 (12... g5 $15 {Deep Fritz13 & Komodo11}) 13. Rb1 (13. Re1 Bg4 $19 14. Kf1 Rad8 $17 {djetlic-hearthstones9,2014,1-0} (14... Ne5 $18 {Houdini4 & Komodo11})) (13. Bd1 Bg4 14. Qc3 Ne5 15. d4 Nxf3+ 16. Bxf3 Bxf3 17. Qxf3 (17. gxf3 Qg6+ 18. Kh1 Qh5 $19) 17... Qxd4 18. Qxb7 Qc4 $11 {Komodo11} 19. c3 Bxh2+ $19) 13... Bf5 $19 14. Qc4 Na5 15. Qb5 Bxc2 16. Ra1 (16. Qxa5) 16... Nb3 17. Ra2 a6 (17... Bb1 18. Qxb3 Bxa2 19. Qxa2 Rxe2 $19 {Bl afterthoughts}) (17... Rxe2 18. Qxe2 Bb1 $19 {Komodo11}) (17... Qf4 18. g3 Qe4 19. Re1 Nxc1 20. Rxc1 Ba4 21. Ng5 Qxe2 22. Qxa4 Qxd2 23. Raa1 Qxg5 $19 {Komodo11}) 18. Qc4 Nxc1 ( 18... Rxe2 19. Qxc2 Qe6 20. Qb1 Bf4 $19 {Komodo11}) (18... Bb1 19. Qxb3 Bxa2 20. Qxa2 Rxe2 $19) (18... Qf5 19. Bd1 Bxd1 20. Rxd1 Na5 21. Qc3 Qb1 $19 { Komodo11}) 19. Rxc1 Bf5 $19 20. Nd4 (20. Raa1 b5 21. Qc6 Qxb2 $19 {Komodo11}) 20... b5 21. Qd5 (21. Qc3 Be5) 21... Be4 $19 0-1 [Event "Welsh Ch blitz"] [Site "?"] [Date "2017.06.17"] [Round "11"] [White "Van Kemenade, R."] [Black "Gilbert, J."] [Result "1-0"] [ECO "B31"] [WhiteElo "1977"] [BlackElo "2035"] [Annotator "Rudy"] [PlyCount "75"] [EventDate "2017.06.18"] 1. e4 c5 2. Nf3 Nc6 3. Bb5 {the Rossolimo, turning a Sicilian into something more akin to a Ruy Lopez} g6 4. O-O Bg7 5. c3 Nf6 6. Re1 O-O 7. h3 a6 8. Bf1 e5 (8... b5 9. d4 cxd4 10. cxd4 d5 11. e5 Ne4 12. Nbd2 Nxd2 13. Bxd2 Be6 14. a4 b4 15. Rc1 {led to great complications in Van Kemenade-Gilbert, WCPL2009,1/2-1/2}) 9. d4 d6 (9... cxd4 10. cxd4 exd4 11. Nxd4 d5 12. Nxc6 bxc6 13. exd5 Nxd5 14. Na3 {Van Kemenade-Hill, BCF ch Aberystwyth 2014, 1/2-1/2; after an endgame of B vs 3 connected passed pawns}) 10. dxc5 {the idea is to be able in the longterm to put a N on d5} (10. a4 Qc7 11. Na3 {should be ok, although it didn't work as planned against an IM; Van Kemenade-Veremeichik, EU Seniors tm, Wales- Belarus, Dresden 2013,0-1}) 10... dxc5 11. Qxd8 {60%} (11. Qc2 {scores even better for Wh , 73%}) 11... Rxd8 12. Bg5 (12. a4 {is too slow; & in any case b5 by Bl can be a source of weakness, as in this game}) 12... Be6 13. Na3 {leaves open c2 as a path to e3 & d5, should Bl throw in b5 to control c4} (13. Nbd2 h6 14. Bxf6 Bxf6 15. Bc4 Rd6 16. Bxe6 Rxe6 17. Red1 Rd8 18. Nc4 Ree8 19. Nb6 $14 {Barth-Heumann, Landesliga Nord, Bayern 2007,1-0}) 13... h6 14. Bxf6 Bxf6 15. Nc4 (15. Bc4 {removing a defender of d5 is also a good idea}) 15... b5 16. Ne3 Rd7 17. a4 b4 (17... Rb8 {is safer, but Bl sticks to the plan of doubling on the d file}) 18. Rad1 Rad8 (18... Rxd1 19. Rxd1 Bb3 $2 {loses a piece} 20. Rd6 $18) 19. Rxd7 Rxd7 20. Bxa6 $16 {its easy to forget about the power of lurking Bs} bxc3 21. bxc3 Ra7 22. Bb5 Rc7 (22... Na5 23. Ng4 {& Bl has to give up the 2 Bs or lose another pawn}) 23. Nd5 {mission accomplished} Bxd5 24. exd5 $18 Nd8 (24... Na7 {Komodo11} 25. Nxe5 Nxb5 26. axb5 Bxe5 27. Rxe5 Kg7 28. c4 $18) 25. d6 Rb7 26. Nxe5 Ne6 27. Nxg6 $5 (27. g3 Kg7 28. Kg2 Rb6 29. Nc4 Rb8 30. Re3 {Komodo11,Wh must be winning with 2 pawns up, but Bl does have a lot of bl square control}) 27... Bxc3 28. Ne7+ (28. Re4 Kg7 29. d7 Ba5 30. Nf4 Nxf4 31. Rxf4 Rb8 32. Kf1 $18 {Komodo11}) 28... Kf8 29. Rd1 (29. Re4 {Komodo11}) 29... Bd4 (29... Nd4 30. Nc8 Ba5 31. d7 f5 32. Nd6 Rb8 33. Nc4 Bb4 34. Ba6 Ke7 35. Bc8 Kd8 36. a5 $18 {Komodo11}) 30. Nf5 (30. Nc6 Bf6 31. Rd5 Rb6 32. g3 Nd8 33. Na5 Ne6 34. Kg2 $18 {Komodo11}) 30... Bf6 (30... Bg7 31. d7) 31. Nxh6 {no rush, a further insurance giving Wh a K side weapon as well as the a pwn & d pawn} (31. g4 {Komodo11}) 31... Nd4 32. d7 (32. Ng4 Bg7 (32... Bd8 33. Ne5 Nxb5 34. axb5 Rxb5 35. Nc6 Bb6 (35... Ke8 36. d7+ Kf8 37. Nxd8) 36. d7 $18) 33. Ne3 Nxb5 34. d7 Bf6 35. axb5 Bd8 36. Nf5 c4 37. g4 c3 38. Rc1 Rxd7 39. Rxc3 Rd1+ 40. Kg2 Rb1 41. Rc5 Ke8 42. h4 Bb6 43. Rc2 Kd7 (43... Rxb5 44. Nd6+) (43... Kf8 44. Rc8+ Bd8 45. Rxd8#) 44. h5 Rxb5 45. Rd2+ Ke6 46. h6 Ba5 47. Rd6+ Ke5 48. Rc6 Bd2 49. h7 Rb8 50. Nd6 Kd5 51. Nc8 $1 (51. Rc8 Rxc8 52. Nxc8 Bc3 {holds out longer}) 51... Kxc6 52. h8=Q $18 {Komodo11}) 32... Ke7 { its natural to bring the K towards the most dangerous pawn; however there are tactical problems} (32... Kg7) 33. Nf5+ (33. Ng8+ Kd8 34. Nxf6 $18 {Komodo11 even stronger}) (33. Re1+ Kd8 (33... Ne6 34. Ng8+) 34. Nxf7+ Kc7 35. Re5 Nxb5 36. d8=Q+ Bxd8 37. Rxc5+ Kd7 38. Nxd8 Kxd8 39. Rxb5 {is another typical Engine series of complexities from komodo11 few humans would contemplate}) 33... Kd8 34. Nxd4 cxd4 35. Re1 (35. g3 {provides the h pawn with protection to advance Komodo11. Engines remain materialistically inclined, preferring often to keep as many of the material gains intact, rather than going for a simple line of play}) (35. Rc1 Rc7 36. Re1 {gives the Bl R a bit of freedom}) 35... Be7 36. h4 {though this may not be the most accurate way, it proves to be effective within the time controls[ 3 mins + 2 secs increment]} (36. Re4 d3 37. Rd4 { Komodo11. cf earlier note about Engines , though they are, of course, very accurate & alert to nuances of tactics}) 36... Bxh4 (36... d3 {best chance} 37. h5 {may take a little longer} (37. Rd1 Bxh4 38. Rxd3 Rb6 39. Re3 Be7 40. g4) 37... d2 38. Rd1 Bb4 39. h6 Rb6 40. h7 Rh6 41. Bd3 Kxd7 42. Kf1 Kd6 43. Ke2) 37. Re8+ Kc7 38. Rc8+ {Bl was down to only a few seconds as well now.} 1-0

Monday, 5 June 2017

So Near and Yet No Car

The clubs of the Dyfed League are spread out over a wide geographical area, and their players often live some way from the clubs. Add to that the fact that an unusual number of chess players seem to be non-drivers (me, for example)and it becomes clear why matches are often hard to arrange. Several clubs have had transport difficulties this year, Aberystyth included, with the result that not all the matches have been played by the end of the season. This is particularly hard on the A team, who competed extremely well this year, and could have won the title if all their matches had been played. On the last day of the season, Wednesday 31 May, we consoled ourselves with a 4-0 victory over Carmarthen at the Emlyn Cafe, Tanygroes.

On top board, Rudy van Kemenade played the unusual Chigorin Defence against Gerry Heap, and an odd-looking position was soon reached, with the White king on f1 instead of safely castled. This worked out badly for Gerry as he lost the exchange to a discovered check and was unable to find any compensation. The second-board game was also over quickly. Adam Watkin-Jones developed sensibly against David Buttell's Sicilian, and Black's attempt to start complications backfired, leaving him a rook down. Adam Robinson celebrated his last game for the club by opening 1...a5 against 1.e4. Paul Orton refused to be provoked, and, despite going a pawn down, looked very comfortable for most of the middle game, missing a win before compounding the error with a final blunder. I had a space advantage with my London System against Robert Narayan-Taylor, but could make no headway. Feeling my position about to fall apart, I went in for a risky sacrifice; with both players desperately short of time, I was losing the ending when Black slipped up and allowed me a lucky win - not the first time that's happened to me this year.A 4-0 win was some consolation to Aber for the season that got away.

[Event "DyfedLeague:AberystwythA-Carmarthen"] [Site "?"] [Date "2017.05.31"] [Round "?"] [White "Heap, G."] [Black "Van Kemenade, R."] [Result "0-1"] [ECO "D02"] [WhiteElo "2168"] [BlackElo "1962"] [Annotator "Rudy"] [PlyCount "62"] [EventDate "2017.06.01"] 1. Nf3 {Gerry has had a very successful run with this move in the past; 20 wins, 9 draws & only 3 losses: against Tim Kett in the Dyfed Open 2011,0-1; Julie van Kemenade, Dyfed League 2011, 0-1 & Steve Cunliffe, WLS ch 2007,0-1} Nc6 2. d4 (2. g3) (2. c4 {back to more usual Gerry lines}) (2. e4 e5 3. Bb5 { lines he has played in the past}) 2... d5 {Now its a Chigorin Defence he hasn't played against before} 3. g3 Bg4 (3... Bf5 4. Bg2 e6 5. O-O Nf6 6. c4 Be7 7. Ne5 Nxe5 8. dxe5 Ne4 9. g4 {Van Kemenade-Pogson, Huddersfield Summer, 1983,1-0}) 4. Bg2 Qd7 5. h3 (5. c4 dxc4 6. d5 Bxf3 7. Bxf3 Ne5 8. Bg2 e6 9. Qd4 Bd6 (9... Nc6 {main}) 10. Bf4 Ng6 11. Bxd6 cxd6 12. Qxg7 $16 {Van Kemenade-J Horner, Manchester open 1990,0-1}) 5... Bf5 {main, keeps on h3 to hold up 0-0} (5... Bh5) 6. Ne5 (6. c3) (6. c4 {main}) 6... Nxe5 7. dxe5 c6 (7... O-O-O { scores well for Bl with 70%}) 8. Nd2 (8. e4) (8. Nc3) (8. g4 {also tried here}) 8... f6 (8... Qc7) 9. Nf3 (9. e4 {Komodo11} dxe4 10. Qe2 e3 11. Qxe3 Rd8 (11... Bxc2) 12. O-O Bxh3 13. Bxh3 Qxh3 14. Nf3 Qg4 15. Kg2 h5 $11 { Pollari-Halmeenmaki, FIN ch tm 2000,1-0}) 9... Be4 (9... O-O-O) 10. Bf4 (10. O-O {Komodo11} Bxf3 11. exf3 fxe5 12. Re1 Qc7 13. c4 $14) 10... g5 11. Be3 h6 ( 11... h5) 12. exf6 (12. c4 dxc4 13. O-O Qxd1 14. Rfxd1 Bd5 15. b3 cxb3 16. axb3 fxe5 17. Bxa7 Bg7 18. Bd4 Rxa1 19. Bxa1 Nf6 20. Nxe5 O-O $11 {Komodo11}) 12... exf6 (12... Nxf6 $11 {Komodo11} 13. Ne5 Qd6 14. Bxe4 Nxe4 15. Nf3 c5 $15) 13. c4 {too ambitious} (13. O-O {Iolo}) 13... Bb4+ 14. Kf1 $11 {keeping life complex; Komodo11} (14. Bd2 Bxd2+ 15. Qxd2 O-O-O $11 (15... dxc4 16. Qc3 Qe6 17. O-O-O Ne7 $11)) 14... Ne7 15. Qb3 Bd6 (15... Ba5) 16. Qc3 {a waste of a moveas the Q is not better placed than before} (16. Nd2 Bxg2+ 17. Kxg2 O-O $11 {Rudy & Komodo10}) 16... O-O (16... c5 $1 $17 {Komodo11} 17. Qxf6 O-O-O 18. Bd2 Rdf8 19. Qc3 d4 20. Qb3 Nc6 $17 {Komodo11}) 17. cxd5 Nxd5 18. Qc4 Rae8 $17 { Bl was very content with the position, with all of Bl's pices aimed at the K & both Wh's Rs out of play} (18... f5 $17) (18... Rfe8 {but Bl wanted this R kept on the f file looking at the K}) 19. Rd1 {natural to bring another piece in, but turns out badly} (19. Bxa7 {Wh can win a pawn, but it looks dangerous on the sidelines, while the centre is liable to catch fire} b5 20. Qd4 Bg6 ( 20... Bxf3 21. Bxf3 Be5 22. Bxd5+ (22. Qc5 Ra8 23. Bb6 Qb7 24. Bxd5+ cxd5 25. Qc2 Kg7 26. Bc5 Rfc8 $17 {Komodo11}) 22... cxd5 23. Qb6 Ra8 $19 {pm analysis}) 21. Rc1 Re4 22. Qd3 Qxa7 23. Nd2 Nb4 24. Qxd6 Rd4 25. Qe6+ Bf7 26. Qe3 Re8 27. Ne4 Nd5 28. Qa3 Qxa3 29. bxa3 Rexe4 30. Bxe4 Rxe4 31. Rxc6 Ra4 $17 {Komodo11}) 19... Rf7 (19... Qe6 20. Qb3 (20. Nd2 Nxe3+ 21. fxe3 Qxc4 22. Nxc4 Bxg3 $19) 20... Nxe3+ 21. Qxe3 Qxa2 $17 {Komodo11}) (19... b5 20. Qb3 a5 21. a4 (21. a3 Bxg3 22. fxg3 Qe6 $19 {Komodo11}) 21... bxa4 22. Qxa4 Nxe3+ 23. fxe3 Qe7 $17 { Komodo11}) 20. Bc5 $2 {a mistake in a difficult position} (20. Bd2 f5 $17 { its difficult to co-ordinate the Wh pieces, while Bl just advances on the K side}) 20... Bxc5 21. Qxc5 Ne3+ 22. fxe3 Qxd1+ 23. Kf2 Qc2 (23... Qa4) 24. Qd4 (24. Qxa7 Qxb2 25. Rd1 {though at least the Wh R is backin the game}) 24... c5 25. Qd6 Qxb2 (25... b6 {considered}) 26. Qxc5 Qb6 (26... Qxa2 {is natural, with a winning ending- but Wh was desperate for counterplay ,hoping to keepQ's on for something to happen. Hence Bl targets e3} 27. Rd1 {Bl wasn't clear where the Bl Q should be placed}) 27. Qc3 (27. Qxb6 axb6 28. Nd4 Bxg2 29. Kxg2 Rxe3 (29... f5 30. Kf2 Ra8 $19 {the exchange up should prove to be enough}) 30. Nf5 Rxe2+ 31. Kf3 Rfe7 32. Nxe7+ Rxe7 33. Rb1 Re6 {Wh has some survival chances }) 27... Rc7 (27... Rfe7 {Julie, targetting e3, should be enough} 28. Rd1 Bxf3 29. Bxf3 Rxe3 30. Qd4 Qxd4 31. Rxd4 R8e7) 28. Qd2 Rc2 (28... Rce7) 29. Qd7 Bc6 (29... Qc6) (29... Rd8 30. Qa4 (30. Qg4 f5 (30... Rxe2+ {Rudy, on way home} 31. Kxe2 Qb2+ 32. Ke1 f5 (32... Qxg2 33. Qe6+ Kf8 $11 {Komodo11}) 33. Qh5 f4 $1 ( 33... Kg7 $19) 34. gxf4 Qxg2 35. Rf1 Bd3 $19 {Komodo10}))) (29... Kf8 $19) 30. Qd4 (30. Qd3 Be4 31. Qd7 Rd8 $19 {as above}) 30... Qxd4 31. Nxd4 Bxg2 0-1 [Event "DyfedLeague:AberystwythA-Carmarthen"] [Site "?"] [Date "2017.05.31"] [Round "?"] [White "Watkin-Jones, A."] [Black "Buttell, D."] [Result "1-0"] [ECO "B26"] [WhiteElo "1960"] [BlackElo "1884"] [Annotator "Rudy"] [PlyCount "49"] [EventDate "2017.06.01"] 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e6 (6... e5 7. Qd2 Nge7 (7... Rb8) 8. Bh6 O-O 9. h4 f6 {Horrell- Buttell, Dyfed Open 2016,0-1}) (6... Rb8 7. Qd2 b5 8. f4 e5 9. Nf3 Nge7 {Francis-Buttell, TomWeston Major op , Cardiff 2008, 1/2-1/2}) 7. Qd2 Rb8 8. Nf3 (8. Nge2) 8... b5 (8... Nd4 {main}) 9. d4 (9. O-O) 9... c4 $146 {bypasses the centre, but the Bl pawns become a target} (9... b4 10. Ne2 Nf6 {main}) 10. d5 $16 Ne5 (10... b4 $5) 11. Bxa7 (11. Nxe5 dxe5 12. Bxa7) 11... Nxf3+ 12. Bxf3 Rb7 13. Bd4 e5 14. Be3 h5 (14... b4 15. Ne2 f5) 15. h4 (15. b4 {Komodo10}) 15... Bh6 16. a4 (16. b4) 16... Qa5 ( 16... Bxe3) 17. O-O $18 b4 18. Nb5 Ke7 (18... Rd7 19. Bxh6 Nxh6 20. Be2 $18 { Komodo11}) 19. Be2 $18 (19. Bxh6 Nxh6 20. Be2 (20. Qg5+ f6 21. Qxg6 $18)) 19... c3 20. bxc3 bxc3 21. Qxc3 (21. Qd3) 21... Rxb5 $6 22. Qxc8 Bxe3 23. axb5 Bxf2+ 24. Kxf2 Qb6+ 25. Kg2 1-0 [Event "DyfedLeague:AberystwythA-Carmarthen"] [Site "?"] [Date "2017.05.31"] [Round "?"] [White "Orton, P."] [Black "Robinson, Adam"] [Result "0-1"] [ECO "B00"] [WhiteElo "1597"] [BlackElo "1768"] [Annotator "Rudy"] [PlyCount "84"] [EventDate "2017.06.01"] 1. e4 a5 {FTB; for the boys of the Uni club & James Corrigan; Bl said he would play it & he did. ( in the same competition, Robert Narayan-Taylor has played 1.a4) Has been played 145 times in databases} 2. d4 d6 (2... b6 $5) 3. g3 { Wh plays it carefully, not seeking to punish Bl for the ealy committal a5} (3. Nf3) 3... Nf6 4. Bg2 g6 5. Ne2 Bg7 6. O-O O-O 7. c4 {headed towards a King's Indian setup, where increasingly Bl's a5 fits in with the pawn structure} Nc6 8. Nbc3 e5 (8... h6 9. h3 e5 10. Be3 Bd7 11. d5 Ne7 12. c5 Ne8 {Thiede-Kosa, Berlin Neukoellin 1988,1-0}) 9. d5 Ne7 10. h3 Nd7 11. Be3 Nc5 12. Na4 (12. Bxc5 dxc5 13. Nb5 Ra6 $11 {Komodo11}) 12... Nxa4 13. Qxa4 f5 $11 14. f4 {opening up K side lines, is doubledged} (14. Rac1 $11 {Wh needs a c5 push on the Q side to open up lines}) 14... exf4 15. Bxf4 Bxb2 {snatching a pawn} (15... fxe4 16. g4 h5 17. gxh5 Nf5 18. hxg6 Nh4 19. Qb3 Nxg2 20. Kxg2 Bf5 $11 {Komodo11}) 16. Rab1 Bg7 17. Kh2 $11 Qe8 (17... fxe4 $5) 18. Qc2 b6 19. Nc3 Ba6 20. Nb5 Bxb5 { given as best by Komodo11; but theextra Blpawn now becomes a weakling on c7, assailable down the c file} (20... Qd7 {and waiting , must be a better strategy }) 21. cxb5 Ra7 {Bl didn't like this move, preferring} (21... Rc8 {however there were reasons for this choice; becoming crucial later}) 22. a4 Qd7 (22... fxe4 {Stockfish8 & Komodo11}) 23. Be3 Be5 24. Rf2 Raa8 25. Rc1 Rac8 26. Rcf1 Kg7 {Bl unsure about position here- probably level; which is Komodo11 judgement. ( Bl's extra pawn on c7 cannot be made any use of- Rudy)} 27. Qc1 Kg8 28. Rc2 Bf6 29. Rc4 Be5 30. Rf2 fxe4 31. Rxf8+ Kxf8 32. Bxe4 Nf5 33. Bxf5 ( 33. Bf2 $5) 33... gxf5 (33... Qxf5 34. Rxc7 Rxc7 35. Qxc7 Qf3 36. Bh6+ Ke8 37. Qc8+ Ke7 38. Bg5+ Kf7 39. Qc7+ Kg8 40. Qd8+ {with a perpetual}) 34. Bh6+ { the wrong direction} (34. Bxb6 {with both the KR & N moved away, Bl's passive Q side suddenly collapses; Komodo11 & Rudy} Qf7 35. Rxc7 (35. Qd2 h5 36. h4 f4 37. gxf4 Bf6 38. Bxa5 $18) (35. Bxc7) (35. Bxa5)) 34... Bg7 (34... Kg8) 35. Rh4 (35. Be3 Qf7 36. Bxb6 $16 {Komodo11}) 35... Re8 36. Qb2 (36. Qg5 $11) 36... Qf7 (36... Bxh6 37. Rxh6 Qg7 38. Qd2 Re4 $17 {Komodo11}) 37. Bxg7+ Qxg7 38. Qc2 Re5 39. Qd2 (39. Rf4 Qf7 $15) 39... Ke7 40. Qc2 Kd8 $19 41. Rf4 Qe7 (41... Re3 42. Qf2 Qe7 43. Qf1 Re2+ 44. Rf2 Rxf2+ 45. Qxf2 Qe4 $19 {Komodo11}) 42. h4 $2 (42. Rf2 Kc8 (42... Qf7 43. Qc4 Qxd5) 43. Qd1 Kb7 44. h4 Qf7 45. Rd2 f4 $19 { Komodo11}) 42... Re2+ $19 0-1 [Event "DyfedLeague:AberystwythA-Carmarthen"] [Site "?"] [Date "2017.05.31"] [Round "?"] [White "Francis, Matthew"] [Black "Narayan-Taylor, R."] [Result "1-0"] [ECO "D00"] [WhiteElo "1704"] [BlackElo "1476"] [Annotator "Rudy"] [PlyCount "135"] [EventDate "2017.06.01"] 1. d4 Nf6 2. Bf4 {Tony Geraghty's favourite, long before Carlsen et al} e6 3. e3 d5 4. c3 (4. Nf3 {allows Wh to occupy e5 in response to Bd6}) 4... Bd6 5. Bg3 Ne4 6. Nd2 (6. Bd3 Nxg3 7. hxg3 Nd7 (7... e5 8. dxe5 Bxe5 9. Rh5 { Lui-Kemper, Utrecht OKU op 2001,1-0}) 8. Rxh7 Rxh7 9. Bxh7 Nf6 { Geraghty-Sendall, Dyfed League 2011,1-0} (9... g6 {traps the B})) 6... Nxg3 7. hxg3 Nc6 (7... Nd7 8. Ngf3 e5 {Szekeres-Boricsev, HUN ch tm 2016,1/2-1/2}) ( 7... c5 8. Bd3 Nc6 9. Ndf3 Bd7 {Kamsky-Dreev, Gibraltar Masters 2014,1/2-1/2}) 8. Ngf3 Bd7 (8... e5 $11) 9. e4 dxe4 10. Nxe4 Be7 (10... h6 11. Bd3 e5 $14 { Komodo11}) 11. Bd3 $16 f5 {shifting the N & gaining space, but leaves a weak e6 pawn on an open file} 12. Ned2 Bf6 13. Qe2 (13. O-O {Wh is perfectly safe on the K side}) 13... Qe7 14. O-O-O (14. Nc4) 14... O-O-O 15. Ne5 {after the exchange on e5, Bl no longer has to worry about the weakness on e6} (15. Nc4 $14 {Wh will be able to take back on e5 with a piece, leaving the pressure on}) 15... Rde8 (15... Bxe5 16. dxe5 Qc5 17. Rhe1 Kb8 $14 {Komodo11}) 16. f4 (16. Nxd7 Qxd7 17. Nb3 $16 {Komodo11}) 16... g6 (16... Bxe5 17. dxe5 g5 18. Nb3 $16 {Komodo11}) 17. Rh2 (17. g4) 17... Nxe5 18. dxe5 Bg7 $14 19. Nf3 h6 20. g4 Kb8 21. Nh4 Qf7 22. gxf5 gxf5 (22... exf5 23. Bc4 Be6 24. Bxe6 Qxe6 25. Qc2 Rd8 26. Rhh1 $16 {Komodo11}) 23. g4 h5 (23... fxg4 24. Qxg4 Rd8 25. Ng6 Rhe8 26. Bc2 Bc6 27. Rhd2 Rxd2 28. Rxd2 a6 $14 {Komodo11}) 24. g5 $16 (24. gxf5 exf5 25. Bc4 Be6 26. Bxe6 Qxe6 27. Kb1 $16 {Wh has a protected passed pawn, & Bl has weaknesses ar f5, g6 & h5}) 24... Rd8 25. Nf3 Bf8 26. Rdh1 (26. Nd4 Bc5 27. Bc2 a6 $14) 26... Bc6 $11 {the Bs have enough central space to counter Wh's extra K side space} (26... Bc5 $11) 27. Rh3 Be8 (27... Bc5) 28. Rg1 Bc5 29. Rg2 Bc6 $11 30. g6 $5 {this pawn will be either weak or strong} Qg7 (30... Qd7) 31. Rg5 (31. Bc4 Be4 $11 32. Bxe6 Rd3 33. Ng5 Rxh3 34. Nxh3 Rd8 $11 {Komodo11}) 31... Rh6 (31... Be7 $17 32. Rgxh5 Rxh5 33. Rxh5 Qxg6 34. Nd4 Bd5 35. Qh2 (35. b3 Qg3 $19) 35... a6 36. Rh8 Rxh8 37. Qxh8+ Ka7 38. Qh2 Bc5 $15 {Komodo11}) 32. Nh4 Be7 $17 33. Rxf5 {Wh felt the position was drifting away from him, if he didn't try something; best bet Fritz15} (33. Bxf5 {Komodo11} Bxg5 34. fxg5 exf5 35. gxh6 Qxh6+ 36. Re3 Qg5 37. Nf3 Qxg6 $17) ({the Wh pieces appear awkwardly placed, with natural moves leading nowhere} 33. Rxh5 Rxh5 34. Qxh5 Rh8 $19) 33... Be8 {Bl backs off; both sides short of time} (33... exf5 $1 34. Nxf5 Qf8 (34... Qxg6 35. Nxe7 Qg1+ 36. Qf1 (36. Kc2 Ba4+ 37. b3 Qa1 $19 {Komodo11})) 35. g7 Qf7 36. Nxh6) (33... Bxh4 {Rudy, second possibility} 34. Rxh5 $1 (34. Rf7 Qg8 $1 $19 {Komodo11; Rudy had thought of Qg6 but the B still holding it} 35. Rxh4 Rxg6 36. Bxg6 Qxg6 37. Rxh5 (37. Rf6 Qg1+ 38. Kc2 Be4+ 39. Kb3 Qb6+ 40. Ka3 Qc5+ 41. Kb3 Bd3 42. Qe1 Qc4+ 43. Ka3 Qa6+ 44. Kb3 Bc4+ 45. Kc2 Qxa2 46. Kc1 Bb3 47. Rxh5 Qa1# {Komodo11}) 37... Qxf7 $19) 34... Rxg6 35. Bxg6 Qxg6 36. R5xh4 Qg1+ 37. Kc2 Be4+ 38. Kb3 Qb6+ 39. Ka3 Qa5+ 40. Kb3 Qb6+ $11 {Komodo11}) 34. Rg5 (34. Rxh5 $1 $18 {Komodo11} Rxd3 (34... Rxh5 35. Qxh5 $18) (34... Qf8 35. Rxh6 Qxf4+ 36. Qd2 Qxd2+ 37. Kxd2 Bg5+ 38. Ke2 Bxh6 39. Nf3 Bg7 40. Rh7 Rd7 41. Be4 $18 {Komodo11}) 35. Rxd3 Bb5 36. Kc2 Bxd3+ 37. Kxd3 Bxh4 38. Rxh6 Qxh6 39. Qg4 Qg7 40. f5 (40. Qxe6 Be7 41. Qf7 $18) 40... Qd7+ 41. Qd4 Qb5+ 42. c4 Qc6 43. Qxh4 $18 {Komodo11}) 34... Bxg5 35. fxg5 $11 Rh8 36. Bc2 {too slow- Wh needs to safeguard his advanced pawns} (36. Rf3 $1 {Rudy} Rg8 37. Rf6 Qd7 $15 { Komodo11}) 36... Rd5 (36... Bc6 $17) 37. Nf3 (37. Rf3 Rxe5 38. Qd2 Rd5 39. Qf4 Bc6 40. Qf6 Rd7 41. Qxg7 Rxg7 42. Rf6 Re8 $15 {Komodo11}) 37... Bc6 (37... Bxg6 $19) 38. Nd4 (38. Be4 Rc5 39. Bxc6 Rxc6 40. Qe4 $11 {Komodo11}) 38... Rxe5 39. Nxc6+ bxc6 40. Qd2 (40. Re3 Rxg5 $17 41. Rxe6 $2 (41. Be4 Rf8 $17) 41... Rg1+ 42. Kd2 Rd8+ 43. Bd3 Rg3 $19 {Komodo11}) 40... Rd5 (40... Qe7 41. Kb1 Rd8 42. Qf2 Rf8 43. Qg1 Rxg5 $19 {Komodo11}) 41. Qe3 Re5 (41... Qe7) 42. Qd2 h4 (42... Qe7 {wins g5 & keeps the h pawn as a later threat}) 43. b3 {safeguaring the K with an escape square} Qe7 $19 44. Kb2 Rd8 (44... Qxg5 {keeps guard on the h pawn}) 45. Qf2 Qxg5 46. Qxh4 Qxh4 (46... Rd2) 47. Rxh4 Rg8 (47... Rg5 {more efficient}) 48. Rh7 Rg5 (48... Re2) 49. Re7 e5 (49... Rg2 50. Rxe6 Rf8 51. g7 Rxg7 52. Be4 c5 $17 {Komodo11}) (49... R8xg6 50. Bxg6 Rxg6 51. b4 $11 {is a tricky endgame,though Bl can try to win it}) 50. Be4 $11 (50. b4 $11) 50... Kb7 51. Re6 {(draw?)} (51. b4) 51... Kc8 52. Rxc6 (52. b4 c5 53. b5 $11 {Komodo11}) 52... Rd8 (52... Rf8 53. b4 Rf4 54. Bc2 Rg2 55. Kb3 Kd7 56. b5 a5 57. a4 e4 $17 {Komodo11}) 53. Re6 (53. Rf6) 53... Rd2+ 54. Ka3 Re2 (54... Kd7 55. Rf6 Re2 56. Rf7+ Ke6 57. Bd3 Re3 58. Bc4+ Kd6 59. g7 Reg3 60. Rf6+ Ke7 61. Rf7+ Kd6 62. Rf6+ $11 {Komodo11}) 55. Bd3 (55. Bc6 Rd2 56. Re8+ Rd8 57. Bb7+ Kd7 58. Bc6+ Kc8 59. Bb7+ $11 {repetition}) 55... Kd7 (55... Re3 56. Bb5 Rxc3 $15) 56. Ra6 ( 56. Rf6 $11 Re3 57. Bb5+ Ke7 58. Rc6 e4 59. Kb4 $11 {Komodo11}) 56... Re3 ( 56... Reg2 57. Rf6 R2g3 58. Bf5+ Ke7 59. Rf7+ Kd6 60. Kb2 a5 $15 {Komodo11}) 57. Bb5+ c6 (57... Kd8 58. Kb4 $11 (58. Re6 c5 59. c4 e4 $11 {Komodo11})) 58. Rxa7+ (58. Rxc6 {is a safer pawn to take} Ke7 59. Kb4 $11) 58... Kd6 $17 59. Ba4 {laying a trap} (59. Bc4 Rxg6 60. Kb4 Rh3 $17 {Komodo11}) 59... Rxc3 $19 ( 59... Rxg6 60. Bxc6 {gives survival chances}) 60. g7 e4 $1 61. Kb4 Rcg3 (61... Rc2 62. Rf7 e3 63. Rf6+ Ke5 64. Rf1 e2 65. Re1 Kd6 66. Ka3 Rxg7 $19 {Komodo11}) 62. Ra6 Rc5 $1 (62... Rxg7 63. Rxc6+ Kd5 $17 {should be good enough for a win}) 63. Ra8 Rxg7 64. Rd8+ Rd7 $2 {but this finds a way of losing} (64... Ke7 $1 65. Rd2 (65. Kxc5 Kxd8 66. Kd4 (66. Bxc6 Rc7 $19 (66... e3 67. Bf3 (67. Bb5 Rg5+) 67... Rg2 $19))) 65... e3 66. Re2 Re5 67. Kc3 Kd6 68. Kd3 Rge7 $19 {& sooner or later the Wh K will be driven away fronm the pawn}) (64... Kc7 65. Re8 Rc2 66. Rxe4 Rxa2 {& Bl has lost the passed pawn he needs to ensure the win with an exchange up}) 65. Rxd7+ Kxd7 66. Kxc5 e3 67. Bxc6+ Ke6 68. Bf3 {and the pawn is held} 1-0

Wednesday, 12 April 2017

Home Comfort

The Brynamlwg Tavern will be closed next Tuesday, 18 April, so there will be no chess that night.

Aberystwyth A continued their strong run in this year's Dyfed League with a home win against Gwyddbwyll.com at the Brynamlwg Tavern on Tuesday 4 April. On top board, Rudy van Kemenade won a pawn against Iwan Griffiths in an Italian Game, and Black's two bishops were not enough compensation; Rudy won on time, but was dominating the ending anyway. Adam Watkin-Jones, playing a Sicilian Defence, had reached a level position with only major pieces and pawns left, when Owen Llywelyn blundered, dropping his otherwise defensible b-pawn and letting the Black pieces in for a quick win. Ian Finlay was under pressure in a Queen's Gambit against Tegwyn Jones; it looked as if he could hold, but he fell into a nasty trap, and his position abruptly collapsed. Sam Holman won an exchange early on against Emyr Llywelyn, but it was his kingside pawns, charging down the board, that really did the damage; White's attempts at a mate on the other wing never looked realistic. The match finished 3-1 to Aber.If only we could get some transport for our away matches, this could be a good year for the team.

[Event "DyfedLeague:Gwyddbwyll.com-AberystwythA"] [Site "?"] [Date "2017.04.04"] [Round "?"] [White "Van Kemenade, R."] [Black "Griffiths, I."] [Result "1-0"] [ECO "C55"] [WhiteElo "1962"] [BlackElo "1609"] [Annotator "Rudy"] [PlyCount "77"] [EventDate "2017.04.05"] 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 d6 7. c3 (7. a4 { main}) 7... Bg4 (7... Na5 {main} 8. Bb5 a6 9. Ba4 {transposes to Ruy Lopez}) 8. Nbd2 (8. h3 {alternative}) 8... Qd7 (8... Na5) (8... a6) 9. Bb3 Rad8 10. h3 ( 10. Nf1 {alternative}) 10... Be6 (10... Bh5 {main}) 11. Bc2 $146 {Wh's aim was not to look to any immediate advantage, but rather to get a complex position with lots of alternatives,especially since the Bl player was unfamiliar with these kinds of positions} (11. Ba4 a6 (11... Qe8 12. d4 exd4 13. cxd4 Bd7 14. Bc2 Nb4 15. Bb1 Bb5 16. Qb3 c5 {Horvath- Barabas, HUN ch tm 2003, 0-1}) (11... Qc8 12. Qe2 Bd7 13. Bb3 Be6 14. Bc2 h6 15. d4 exd4 16. cxd4 Nb4 17. Bb1 c5 { Bartos-Janousek, Harrachov op 2009,1-0}) 12. d4 exd4 13. cxd4 d5 14. e5 Ne8 15. Nf1 b5 16. Bc2 {Morhart-Fahrenholz,GER ch U20 Girls;Halle 1994,1-0}) (11. Nf1 Bxb3 12. Qxb3 (12. axb3 d5 13. exd5 Qxd5 14. Bg5 {Von Herman-Winter, BLwomen 1992, draw agreed}) 12... b6 13. Be3 Qe6 {Rost-Delinotte, FRA ch tm U18, 1996, 1/2-1/2}) 11... d5 (11... Qc8 12. Nf1 h6 13. Ng3 Rfe8 14. d4 $14 {Komodo10}) 12. Qe2 (12. Ba4 {considered} Qd6 (12... Bd6 13. exd5 Nxd5 14. Nxe5 Bxe5 15. Rxe5 Nb6 16. Bxc6 Qxc6 17. Nb3 (17. d4 Bd5 18. f3 Rfe8 $14) 17... Qd6 18. Bf4 Qxd3 19. Qxd3 Rxd3 20. Nc5 Rd5 21. Nxb7 Rxe5 22. Bxe5 Nc4 23. Bxc7 Nxb2 24. Nd6 Nc4 $14 {Komodo10}) 13. exd5 {considered} Bxd5 14. Bxc6 Qxc6 15. Nxe5 Qa6 16. d4 Rfe8 17. b3 $14 {Komodo10}) (12. exd5 Nxd5 (12... Qxd5 13. Qe2 (13. Nc4 e4 $17) 13... Rfe8 (13... Bd6 14. Bb3 Qc5 15. Bxe6 fxe6 16. Nc4 $16)) 13. Nxe5 Nxe5 14. Rxe5 Bd6 {Bl has a Marshall gambit type position} 15. Re4 (15. Re1 Bxh3 16. gxh3 Qxh3 17. Nf1 Nf4 18. Bxf4 Bxf4 19. Qe2 Rd5 20. Ng3 Rg5 21. Qf1 Qh6 22. Qg2 Qd6 23. Kh2 Qh6+ $11) 15... Bf5 16. Re2 Nf4 17. Re3 Nd5 18. Rf3 Rfe8 $14 {Komodo10}) 12... dxe4 (12... d4 13. cxd4 (13. c4 Qd6 14. Ba4) 13... Nxd4 14. Nxd4 Qxd4 15. Nf3 Qc5 16. Be3 Qb5 17. a4 Qa5 18. d4 exd4 19. Nxd4 Bc8 $14 {Komodo10}) 13. dxe4 Ne8 {Komodo10} 14. Nf1 (14. Nc4 f6 15. Nh4 g6 16. Bh6 Rf7 17. Rad1 Qc8 $11 {Komodo10}) 14... Nd6 (14... f6) 15. Ne3 Kh8 16. Ba4 (16. Nd5) (16. Rd1 {considered; Komodo10- Wh has a slight pull on the wh squares}) 16... f6 (16... Nd4 17. Bxd7 (17. cxd4 Qxa4 18. b3 Qe8 (18... Bxb3 19. dxe5 $16 Nxe4 20. Nf5 $18) 19. Bb2 Nxe4 20. d5 Bd7 21. Qc2 f5 22. Nxe5 Bd6 23. Nxd7 Qxd7 24. Nxf5 Qxf5 25. Rxe4 Qxd5 26. Rae1 $14) (17. Nxd4 Qxa4 18. b3 (18. Nxe6 fxe6 19. f3 Bg5 $11) 18... Qd7 19. Nxe6 Qxe6 20. Nd5 Rd7 21. c4 $11) 17... Nxe2+ 18. Rxe2 Bxd7 19. Nd5 Bf6 20. Nxc7 Bc6 21. Nd2 Nxe4 22. Nxe4 Rd1+ 23. Kh2 Bd8 24. Na8 Bh4 25. b3 Rxa8 26. Bb2 Rxa1 27. Bxa1 Bd8 (27... Rd8 28. c4) 28. c4 f6 $14 {Komodo10}) 17. Rd1 a6 18. c4 (18. Nd5) 18... Qe8 (18... b5 19. cxb5 Na5 20. Bd2 Nac4 21. Bb4 axb5 22. Bb3 Rc8 23. Nxc4 bxc4 24. Bc2 $11 {Komodo10, but humans would like the prospect of playing with an outside passed pawn}) 19. Nd5 Qf7 (19... Nxc4 20. Bxc6 bxc6 21. Nxc7 Rxd1+ 22. Qxd1 (22. Kh2 Qd7 23. Nxe6 Qxe6 24. Qxd1 $11 {Komodo10; but Bl has awkward split Q side pawns}) 22... Qd7 23. Qxd7 Bxd7 24. b3 Bd6 25. Nxa6 Ra8 26. bxc4 Rxa6 27. Be3 Be6 28. c5 Bc7 29. a4 Bc4 $11 {Komodo10} (29... Bb3 30. Rb1 $16 Bxa4 (30... Bg8 31. Nh4 Ra8 (31... Rxa4 32. Rb7 Ba5 33. Nf5 Rxe4 34. Ne7 Rb4 35. Ra7 Bd8 36. Nxc6 Rb1+ 37. Kh2 Rd1 38. Nb4 $18) 32. Nf5 Bd8 33. Rb7) 31. Rb7 $18 {Komodo10})) 20. b3 {risky as the B may be trapped} (20. Bxc6 bxc6 21. Nxe7 Qxe7 (21... Bxc4 $6 22. Qc2 Qxe7 23. Rxd6 cxd6 24. Qxc4 d5 25. Qxa6 dxe4 26. Nd2 Qc5 27. Qc4 Qxc4 28. Nxc4 $16) 22. b3 {considered; but the doubled pawns are difficult to attack, & Bl is rid of a bl square B that looks a potential liability ( obstructed by its pawns)}) (20. c5 {considered; but the c5 pawn will need protection. Bl is fine after} Nb5 21. Be3 (21. Bxb5 axb5 22. Qxb5 Bxd5 (22... f5 $1 $17 {Komodo10}) 23. exd5 Rxd5 24. Be3 Rb8 $15) 21... Nbd4 22. Nxd4 Nxd4 23. Bxd4 exd4 24. b4 c6 25. Nxe7 Qxe7 $11) 20... b5 21. cxb5 (21. Nxe7 Qxe7 22. cxb5 axb5 23. Bxb5 Nxb5 24. Rxd8 Qxd8 $1 25. Qxb5 Qd1+ 26. Qf1 Qc2 27. Qe1 Ra8 28. Bd2 Nd4 29. Nxd4 exd4 30. Rc1 Qxa2 31. Rxc7 Bxb3 $11 {Komodo10}) 21... axb5 (21... Nxe4 $1 {Komodo10} 22. Qxe4 axb5 23. Bxb5 Rxd5 24. Be3 Nb4 25. Bc4 Rxd1+ 26. Rxd1 c6 (26... Nxa2 27. Rd7 Bxc4 28. bxc4 Qe6 29. Rxc7 $14) 27. Bxe6 Qxe6 28. Qb1 Kg8 $11 {Komodo10; but Wh has retained the outside a pawn and Bl has kept his inferior B. Wh must ensure that Bl doesn't get a K side attackwith a central pawn advance, however the Wh N will be wellplaced on c4}) 22. Bxb5 (22. Nxe7 {is what Komodo10 keeps suggesting for Wh} Qxe7 23. Bxb5 Nxb5 24. Rxd8 Qxd8 25. Qxb5 {as in an above line}) 22... Nxb5 23. Qxb5 Nb4 24. Ne3 (24. Nc3 {considered more accurate by Komodo10-protects a2 rather than c2} Rxd1+ 25. Nxd1) 24... Rxd1+ (24... Ra8 $15 25. Bb2 (25. Qe2 Bxb3 26. Rd7 Qe8 27. Rxc7 Bd6 28. Rc3 (28. Rxg7 Kxg7 29. Nf5+ Kh8 30. Nxd6 Qd7 31. Nf5 Be6 32. Bh6 Rg8 33. Rd1 Qc7 34. N3h4 Rxa2 35. Qf3 $11 {Komodo10; Wh has K side chances}) 28... Rxa2 29. Bb2 Rxa1+ 30. Bxa1 Be6 $15)) 25. Nxd1 Nc2 26. Rb1 Na3 {Bl relies on getting 2 Bs to save him} (26... Nd4 27. Nxd4 exd4 28. f3 c5 {preferred by Komodo10}) (26... Qg6 27. Nc3 Bxh3 28. Nh4 Qh5 29. gxh3 Qxh4 30. Qe2 Nd4 31. Qg4 Qxg4+ 32. hxg4 $11 {Komodo10}) 27. Bxa3 Bxa3 28. Nc3 $14 (28. Ne3 Qg6 (28... Rd8) 29. Nd2 Bxh3 30. b4 $18 {Komodo10}) 28... Rd8 29. Rd1 Rxd1+ 30. Nxd1 Qd7 (30... Qg6 31. Qb8+ (31. Qa6 Bd6 32. Qa8+ Bg8 33. Qc6 $16 {Komodo10}) 31... Bg8 32. Qb7 $16 {Rudy}) 31. Qxd7 Bxd7 32. Nd2 {the N gets c4, & in the long run the a pawn decides. This is actually not a position that favours the 2 Bs over the Ns- there are pawns on both sides of the board , however Bl's are static & easily blockaded by the Ns. Bs want mobile pawns they can shepherd forward.} Bc5 33. Kf1 f5 {in search of activity, but it weakens e4 & e5} 34. exf5 Bxf5 35. Ke2 $18 Kg8 {& Bl's K is further away } 36. Ne3 (36. f3 Kf7 37. Ne4 {also tempting}) 36... Bg6 37. Ndc4 (37. Nec4 { is the correct N according to Komodo10} e4 38. Ne5 Bf5 39. g4 {and the e pawn falls}) 37... Bd4 38. Nd5 {Ne7 threat as well as pawn} (38. f3 {also}) 38... Be4 39. Nde3 {Bl's flag fell here} (39. Nxc7 Bxg2 40. h4 $16 {should be fine, but the loose Wh pawns give some chances to the Bs to probe the K side while holding up the Wh Q side pawns}) (39. Nde3 {in the pm analysis the a pawn won comfortably for Wh} Bb1 40. a4 (40. Nd2 $1 {Komodo10, because if Bl takes the a pawn, the B will be lost in about 5 moves}) 40... Kf7 (40... c5 {prevents the b pawn from moving, but the Bon d4 was holding the a pawn, which just runs through} 41. a5 Be4 42. a6 Kf8 43. a7 Ke7 44. Nb6 {wins a B , then returns for more pawns}) 41. Nd2 Ke6 (41... Bg6 42. f3 Ke6 43. Ne4 Be8 44. Kd3 Bc6 45. Nc2 Bb6 46. Nb4 Be8 47. Na6 Kd5 48. b4 h6 49. Nc3+ Kc6 50. b5+ Kb7 51. Kc4 (51. Nb4 ) 51... c6 52. Nc5+ Ka7 53. Kb4 Bd8 54. a5 cxb5 55. Nxb5+ Kb8 56. Nd6 Bc6 57. Nf7 (57. Ne6 Be7 58. Kc5 Ba8 59. Nxg7 {and it looks as if the decision happens on the K side, but suddenly the power of the Bs is felt- even when "winning easily" in an andgame one has to keep alert for sudden tactical possibilities} Kc7 60. Ngf5 Bf8 $11 61. a6 e4 62. fxe4 Bxe4 63. g4 Bxf5 64. gxf5 Bxd6+ 65. Kd5 Bb4 {Bl can't win because of the wrong colour B + RP} 66. Ke6 Kb6 67. f6 Kxa6 68. Kf7 Kb5 69. Kg7 h5 70. f7 Kc4 71. f8=Q Bxf8+ 72. Kxf8 Kd3 73. Kg7 Ke3 74. Kg6 Kf4 75. Kxh5 Kf5 {and Wh can't win either because of his h pawn}) 57... Bf6 58. Ne4 Be7+ 59. Kc4 Bb7 60. Kb5 Ka7 61. Nxe5) 42. a5 e4) 1-0 [Event "DyfedLeague:Gwyddbwyll.com-AberystwythA"] [Site "?"] [Date "2017.04.04"] [Round "?"] [White "Llywelyn, O."] [Black "Watkin-Jones, A."] [Result "0-1"] [ECO "B45"] [WhiteElo "1513"] [BlackElo "1960"] [Annotator "Rudy"] [PlyCount "64"] [EventDate "2017.04.05"] 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 {unusual} (6. Ndb5) (6. Nxc6) (6. Be3) (6. Be2 {main lines}) 6... Bb4 7. Nxc6 bxc6 8. Qe2 (8. e5 { main line, scores well against} Qa5 (8... Nd5 {less against this move})) 8... d5 9. exd5 cxd5 10. Bb5+ Bd7 11. Bg5 $146 (11. Bxd7+ Qxd7 12. Bd2 O-O 13. a3 Ba5 14. O-O Rfc8 $15 {Krstic-Rossolimo, Skopje ol 1972,0-1}) (11. Bd2 O-O 12. O-O Bxb5 13. Qxb5 Rb8 14. Qd3 d4 15. Na4 Bxd2 16. Qxd2 Qd5 17. b3 Rbc8 $15 { Mautone-Ficco, ITA Carnevale op 1999,0-1}) (11. O-O O-O 12. Bg5 Bxc3 13. bxc3 Bxb5 14. Qxb5 Qd7 $17 {Wells-Gayson, 4NCL 2008,0-1}) 11... Qa5 (11... Bxc3+ { Komodo10 & Rudy, inflicts structural damage on the Q side pawns} 12. bxc3 Qa5 13. Rb1 Ne4 14. Bxd7+ Kxd7 15. Bd2 Rhb8 16. Rc1 Rc8 17. O-O Nxd2 18. Qxd2 Qxc3 $17 {Komodo10}) 12. Bxd7+ Nxd7 13. O-O (13. Bd2 $15) 13... O-O (13... Bxc3 14. bxc3 Qxc3 (14... Rc8 15. Bd2 O-O $17) 15. Qb5 a6 16. Qb7 (16. Qa4 Rc8 17. Be3 Qc4 18. Qa3 Nc5 19. Rfd1 O-O $17) 16... Rb8 17. Qxa6 O-O $17 {Komodo10}) 14. Nb5 Rab8 15. Nd4 Qb6 $15 16. c3 Bc5 17. Nb3 a5 (17... Bd6 18. Be3 Qb7 19. Rfc1 Rfc8 20. g3 Nb6 $15 {Komodo10}) 18. Nxc5 Nxc5 19. Be3 $11 Rfc8 20. Rab1 Qc6 21. Rfc1 (21. c4 e5 22. Bxc5 Qxc5 23. Qxe5 Qxc4 24. b3 Qe4 25. Qxe4 dxe4 26. Rbc1 $11 {Komodo10}) 21... Ne4 22. f3 (22. Bd4) 22... Nd6 23. Bf4 Rb7 24. Bxd6 Qxd6 25. Qd3 g6 $15 26. Rd1 Rcb8 (26... Qc5+ 27. Kf1 (27. Qd4 Qxd4+ 28. Rxd4 Rxc3 $17) 27... a4 $17 {Komodo10}) 27. Rd2 a4 28. Qd4 Qb6 (28... Qa6) 29. Qxb6 Rxb6 30. Rbd1 $2 {(draw?)} (30. Kf2 $11 {Komodo10}) 30... Rxb2 $19 31. Rxb2 Rxb2 32. c4 dxc4 0-1 [Event "DyfedLeague:Gwyddbwyll.com-AberystwythA"] [Site "?"] [Date "2017.04.04"] [Round "?"] [White "Finlay, I."] [Black "Jones, Tegwyn"] [Result "0-1"] [ECO "D46"] [WhiteElo "1372"] [BlackElo "1197"] [Annotator "Rudy"] [PlyCount "65"] [EventDate "2017.04.05"] 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 {very popular these days, but it frequently gives Wh problems with activating his QB, even late in the game} (4. Nf3 {main} ) 4... e6 5. Nf3 Nbd7 6. Qc2 (6. Bd3 dxc4 7. Bxc4 b5 {is the complex Meran variation}) 6... Be7 (6... Bd6) 7. cxd5 (7. b3 {main}) 7... cxd5 (7... exd5 { main, Bl gets pressure down the e file; Wh plays b4-5 to pressure the Q side}) 8. Bd3 O-O (8... a6 {1.5-2.5}) 9. O-O b6 (9... h6) (9... Re8) 10. Re1 $146 { a bit slow, Wh never regains the space needed.} (10. e4 {main, opens up centre & lets QB out}) 10... Bb7 11. Ng5 {the N will need to retreat again} (11. Ne5 $11 {is a better place}) 11... h6 12. Nf3 (12. Nh7 Nxh7 13. Bxh7+ Kh8 14. Bd3 $11 {eases a bit of Wh's congestion}) 12... Rc8 13. Bd2 Bb4 14. Rad1 {if Wh puts his Rs on the c file, then they will all swap off, leaving a drawish game with the symmetrical pawns. However leaving the c file to Bl also has its drawbacks} Rc7 (14... Ne4 $5) 15. Qb1 Qc8 $2 {a mistake, as Wh could now win an exchange} (15... a6 $11) 16. Re2 {unpinning unnecessarily} (16. Nb5 { wins an exchange, as the R has nowhere to go}) 16... Bxc3 17. Bxc3 Ba6 18. Bxa6 Qxa6 {Bl has got rid of his worse B, leaving Wh with his inferior B} 19. Rde1 ( 19. Rc2 {Wh should accept that swaps are necessary & that e4 cannot be forced advantageously}) 19... Ne4 $15 20. Rc2 Rfc8 21. Rec1 Qd3 (21... Ndf6) 22. Ne1 Qb5 23. f3 Nd6 (23... Nxc3 {wins a pawn} 24. Rxc3 Rxc3 25. bxc3 (25. Rxc3 $2 Rxc3) 25... Qxb1 26. Rxb1 Rxc3 $17) 24. Bd2 (24. b3 $11 {keeps the N out}) 24... Nc4 25. Nd3 {the Bl pieces are more active, Wh looks to be holding, but passive pieces easily become a target in themselves or , quite often allow a switch to the other side.} (25. Rd1 {needed ( Komodo10)}) 25... Nxd2 (25... Na3 $1 {Komodo10, easy to miss, wins material} 26. Rxc7 (26. bxa3 Qxb1 27. Rxc7 ( 27. Rxb1 Rxc2 $19) 27... Qxd3 28. Rxc8+ Kh7 29. R8c2 e5 $19 {the Q & N work together in the way that the Rs & B are unable to. Wh will quickly be losing pawns.}) 26... Nxb1 27. Rxc8+ Kh7 28. Rxb1 Qxd3 29. Rd1 {and the Q is more active than the ungainly Rs} Nc5 $1 {Komodo10} 30. dxc5 Qe2 31. Rb1 Qxd2 32. c6 Qxe3+ 33. Kh1 Qe2 $17) 26. Rxd2 Rxc1+ 27. Nxc1 $11 Qc4 28. Ne2 (28. Nd3 { looks a little more active & , as it happens, would avoid the coming catastrophe}) 28... Qb4 29. Rc2 $2 {Wh has been under pressure & hopes to ease it by regaining control over the c file.} (29. Rd1 Qa4 30. Nc3 Qa5 31. Qd3 $11 {& Wh is at last ready to play e4}) 29... Rxc2 30. h3 (30. Qxc2 Qe1# {seen too late by Wh, & complete collapse follows}) 30... Rxe2 31. Qc1 Re1+ 32. Qxe1 Qxe1+ 33. Kh2 0-1 [Event "DyfedLeague:Gwyddbwyll.com-AberystwythA"] [Site "?"] [Date "2017.04.04"] [Round "?"] [White "Llywelyn, E."] [Black "Holman, S."] [Result "0-1"] [ECO "A80"] [WhiteElo "943"] [BlackElo "1334"] [Annotator "Rudy"] [PlyCount "74"] [EventDate "2017.04.05"] 1. d4 f5 2. Nf3 Nf6 3. Bg5 (3. g3 {main}) 3... e6 4. e3 (4. Nbd2 {main, aims for an early e4}) 4... Be7 5. h3 {rather cautious} (5. Bd3) (5. Nbd2 {develop}) 5... h6 $146 {Komodo10} (5... b6) (5... O-O {both played}) 6. Bf4 (6. Bxf6) 6... b6 7. Nc3 (7. Ne5 Bb7 8. Be2 (8. Ng6 Rg8 9. Nxe7 Qxe7 10. Bxc7) 8... g5 9. Bh5+ Kf8 10. Ng6+ Kg7 11. Nxh8 gxf4 12. Ng6 $14 {an adventous line of Komodo10} ) 7... Bb7 (7... Bb4 {helps control e4}) 8. Be2 (8. a3) 8... d6 9. Qd3 Nbd7 10. a3 Ne4 11. O-O-O {the wrong side} (11. O-O O-O 12. Nd2 $11 {Komodo10}) 11... Nxf2 $19 12. Qd2 (12. Qc4 d5 13. Qxc7 Qxc7 14. Bxc7 a6 $19 {Komodo10}) 12... Nxh1 13. Rxh1 Nf6 14. Nh4 (14. g4 $5) 14... g5 15. Ng6 Rg8 16. Nxe7 Qxe7 17. Bh2 O-O-O $19 18. Rg1 Ne4 (18... e5) (18... g4 {both seek to open lines quickly- Rs need space. The player who has won an exchange should avoid closed positions, in which the minor pieces might make a comeback, as Rs are good attackers but bad defenders.}) 19. Qe1 Kb8 20. g4 Rge8 (20... Rde8) 21. a4 { angling for something on the Q side , which is relatively undefended} e5 22. d5 Nxc3 23. Qxc3 Bxd5 24. Rd1 Bb7 25. Bb5 (25. gxf5 Qd7 26. Bd3 Qxa4) 25... Rf8 26. Qd3 f4 27. Bg1 f3 (27... fxe3 {has a lot for it, opening the f file for the Rs} 28. Bxe3 {points at the Bl K, but the Bl defensive pawn structure is still intact} Rf3 29. a5 Rxh3 30. a6 Bf3 31. Re1 Qf7 32. b3 Qd5 {and Bl kills all prospects against his K by controlling the centre}) 28. Bf2 e4 (28... d5 $5 ) 29. Qf1 Rh8 30. Ba6 h5 {both sides continue with their plans} 31. Bxb7 Kxb7 32. a5 hxg4 33. a6+ Kb8 34. Qc4 c5 (34... gxh3 {is the materialistic Engine, but there is no need to have to be carefully calculating ( with all the chances of getting it wrong)} 35. Qc6 Kc8 36. Qa8+ Kd7 37. Qxa7 h2 38. Rh1 g4 39. Qb7 Qe5 40. a7 g3 {the Wh pawn is not getting though,while the Bl ones are. }) 35. Qd5 Rxh3 36. Qc6 g3 37. Rxd6 {perhaps Bl might want to swap off Qs, to simplify the game?} Rxd6 (37... Qxd6 $2 38. Qb7#) 0-1

Sunday, 26 March 2017

Cleanish Sweep



Aberystwyth was not quite able to raise the eight players required for the A versus B match on Tuesday 21 March, so the match took place on three boards only. Both James Corrigan and Rudy van Kemenade enjoy complex tactical positions, so it was no surprise when James, playing White for the B team, managed to conjure up an unexpected attack in a Three Knights' Game and Rudy found dangerous counterplay. Analysis reveals that James missed a couple of chances, but when the attack ran out of steam, Black had a big lead in material. I played quietly against Sam Holman's Sicilian, transposing to an English-type position, in which I was the first to break in the centre. Sam's counter with the f-pawn created a weakness on e6, allowing me to establish a knight there, which proved a decisive advantage. Damien Clarke was unable to maintain the White pawn centre against Tony Geraghty in a Slav Defence, and then compounded his difficulties by dropping a piece, leaving Black with an easy win. The unplayed game has been registered as a win for the A-team, no doubt under League regulations, so the result is a 4-0 victory for them.

[Event "DyfedLeague:AberystwythA-AberystwythB"] [Site "?"] [Date "2017.03.21"] [Round "?"] [White "Corrigan, James"] [Black "Van Kemenade, R."] [Result "0-1"] [ECO "C42"] [WhiteElo "1449"] [BlackElo "2009"] [Annotator "Rudy"] [PlyCount "52"] [EventDate "2017.03.22"] 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. d3 d6 5. h3 (5. Be2 {main}) 5... c6 (5... h6) 6. Bd2 Nbd7 7. a3 (7. Be2 Nf8 8. O-O (8. Nh2 Ng6 9. a3 Ba5 10. b4 Bc7 11. Bg5 h6 12. Be3 O-O 13. O-O d5 {Canaviri-Cortes Orihuela, American Continental, Cochabamba 2013,0-1}) 8... Ng6 9. a3 Ba5 10. b4 Bc7 11. Bg5 h6 12. Be3 O-O { Illes-Lauk, Dos Hermanas Internet blitz 2003,0-1}) 7... Ba5 8. Be2 (8. b4 Bc7 9. d4 Qe7 10. Bd3 Nf8 11. O-O h6 12. Re1 g5 13. Bc4 Ng6 14. Be3 (14. dxe5 dxe5 15. b5 Nf4 {Mgurami-Hearthstones9, playchess.com 2012,0-1}) 14... Nf4 { simica-hearthstones9, chesscube.com 2013,0-1}) 8... Nf8 9. O-O (9. b4 Bc7 10. Nh2 h6 11. O-O g5 12. Ng4 Ng6 {J May-Van Kemenade, Arena 2016,0-1}) 9... h6 10. Re1 (10. b4 Bc7 11. Na4 (11. Nh2 {as above}) 11... g5 12. c4 Ng6 13. Nh2 Nf4 { niranjan2000-hearthstones9,chesscube, 2014,0-1}) 10... g5 11. d4 Qe7 $6 (11... Ng6 $11 {Deep Fritz13 & Komodo10;considered; looks more accurate as perhaps the Q can get to f6 in one go. Also it doesnt allow the next tactic spotted by both engines}) 12. dxe5 (12. Nd5 $1 $18 {both Engines} Nxd5 (12... cxd5 13. Bxa5 Nxe4 (13... dxe4 14. dxe5 dxe5 15. Nxe5 $18) 14. dxe5 Be6 15. Bb5+ Nd7 16. c4 O-O 17. exd6 Nxd6 18. Bxd7 Qxd7 19. Ne5 Qe8 20. cxd5 Bf5 21. Ng6 $18) 13. Bxa5 Nf4 14. dxe5 dxe5 15. Nxe5 $1 $18 Nxe2+ 16. Qxe2 Ne6 17. Qd2 O-O 18. Ng4 Kh7 19. Bc3 f6 20. e5 f5 21. Nf6+ Kg6 22. Qe3 $18 {Komodo10}) 12... dxe5 13. Bc4 (13. Nd5 $1 $18 {both Engines}) 13... Ng6 $11 14. b4 Bc7 {Komodo10} (14... Bb6 $5 {Deep Fritz13}) 15. Be3 Nh5 (15... Nd7 {considered}) 16. Bc5 (16. Nxg5 hxg5 $19) (16. Nxe5 Nxe5 $19 (16... Bxe5 $19) (16... Qxe5 $15)) 16... Qf6 17. b5 (17. Nb5 $1 {both Engines} Bb8 18. Nh2 Nhf4 19. Ng4 Bxg4 20. Qxg4 Ne6 21. Rad1 Ngf4 (21... Nxc5 22. bxc5 O-O 23. Nd6 Bxd6 24. Rxd6 Qg7 25. Rb1 Rab8 26. a4 $18 {Komodo10})) (17. Nd5 {considered by bl} cxd5 18. Bb5+ Bd7 19. Bxd7+ Kxd7 20. Qxd5+ Kc8 $19 {Komodo10; pm analysis}) 17... Ba5 (17... Bb6 {both Engines} 18. Qd6 Bxc5 19. Qxc5 Qe7 20. Qe3 O-O 21. bxc6 bxc6 22. Rad1 Nhf4 23. Ne2 $14 {Komodo10}) 18. bxc6 (18. Re3 {James; pm analysis; both Engines} Bb6 ( 18... Bxc3 19. Rxc3 $18 Nhf4 20. bxc6 bxc6 21. Rb1 h5 22. Rcb3 g4 23. Rb8 Rxb8 24. Rxb8 Ne7 25. Ne1 gxh3 26. Qd6 Qxd6 27. Bxd6 hxg2 (27... f6 28. g3 Nfg6 29. Be6 Kd8 30. Nd3 Nf8 31. Bxh3 Nd7 32. Ra8 a6 33. Nc5 $18) 28. Bxe5 Nh3+ 29. Kxg2 Rg8+ 30. Kf1 h4 31. Nf3 Rg4 32. Bd6 Rxe4 33. Bd3 Ra4 34. Bxe7 Kxe7 35. Rxc8 $18 {Komodo10}) 19. Bxb6 axb6 20. Rb1 Nhf4 21. bxc6 bxc6 22. Rxb6 O-O 23. Nd5 Qd6 24. Qd2 Rd8 25. Nxf4 Qxd2 26. Nxd2 exf4 27. Rd3 $16) (18. Bb4 {considered by both} Bxb4 19. axb4 O-O 20. bxc6 bxc6 21. Ra3 (21. b5 Nhf4 22. bxc6 Qxc6 23. Bd5 Nxd5 (23... Qxc3 24. Bxa8 Bxh3 {Komodo10 equal, briefly looked at , thought too risky; but Bl gets good chances around a weakened K side} 25. Re3 ( 25. gxh3 Nxh3+ 26. Kh2 (26. Kf1 Rxa8 27. Re3 Qc8 $17) 26... Nxf2 (26... Ngf4 27. Ng1 Nxg1 28. Re3 Qc8 29. Kxg1 Qxa8 $11) 27. Qe2 Ng4+ 28. Kg3 Nf4 29. Qa6 Nh2 30. Ra3 Qxc2 31. Ra2 Nh5+ 32. Kh3 Qc3 33. Kxh2 (33. Ra3 Qc5 34. Ree3 (34. Nxh2 Qf2 35. Qf1 Nf4+ 36. Kg4 Qxh2 $19) 34... Nxf3 35. Rxf3 Qg1 36. Qf1 Qxf1+ 37. Rxf1 Rxa8 $15 {Komodo10})) 25... Qc7 (25... Qc8 26. Ne1 Bxg2 27. Bd5 Bh3 28. Rxa7 Nxd5 29. exd5 Nf4 30. d6 Rd8 31. Rxe5 Qc6 $11 {Komodo10}) 26. Bd5 Bxg2 27. Ne1 Bh3 28. Rea3 Qc8 29. Rxa7 Nxd5 (29... Bg4 30. Bb7 Qe6 31. Bd5 $11) 30. exd5 Bg4 31. f3 Bf5 32. d6 Qc5+ 33. Kh1 Kg7 34. Qd2 Rd8 35. R7a6 Bc8 36. Ra8 Nf4 $15 {Komodo10}) 24. Nxd5 {pm analysis} Kh8 25. Ra3 f6 26. Rc3 Qd6 27. Rd3 Ne7 28. c4 Nxd5 29. cxd5 a5 $14 {Komodo10})) 18... Bxc3 19. c7 {considered = by Deep Fritz13} (19. cxb7 $11 {Komodo10} Bxb7 20. Rb1 $1 (20. Bb5+ Bc6 21. Qd5 Rc8 $19) 20... Bc6 21. Re3 Ba5 22. Nh2 (22. Nd4 Rd8 23. Bd5 Bxd5 24. exd5 Rxd5 25. Rb5 Bb6 26. Bxb6 Rxb5 27. Nxb5 Qxb6 28. Rb3 O-O 29. Qxh5 Qc6 30. Nxa7 Qxc2 $17 {Komodo10}) 22... Nhf4 23. Ng4 Qd8 24. Qf1 Bb6 25. Rd1 Bxc5 {other moves lose} 26. Rxd8+ Rxd8 27. Rc3 h5 28. Ne3 Bb6 29. Bxf7+ Kxf7 30. Rxc6 Rhe8 $11 { Komodo10}) 19... Bd7 (19... a6 20. Rb1 Ba5 (20... Bxe1 21. Rb6 $18) 21. Bb6 Bxb6 22. Rxb6 Qe7 23. Rxg6 fxg6 24. Nxe5 Qxc7 25. Bf7+ Qxf7 26. Nxf7 Kxf7 27. Qd5+ Kg7 28. Re3 Re8 29. Rc3 Be6 30. Qxb7+ Kg8 31. Rc7 Rab8 32. Qxa6 Bf7 33. Kh2 $11 {Komodo10}) 20. Qd5 {not the best} (20. Rb1 {both Engines} Bxe1 (20... b6 21. Re3 bxc5 22. Rxc3 Nhf4 (22... Rc8 23. Rd3 Rxc7 24. Rd6 Be6 25. Nh2 Nhf4 26. Ng4 Bxg4 27. Rxf6 Bxd1 28. Rb8+ Ke7 29. Rxf7+ Kd6 30. Rf6+ $11 {repetition, Komodo10}) 23. Rb8+ Ke7 24. Rcb3 Qc6 25. R3b7 Bc8 26. Rb3 Qxe4 27. Ba6 c4 28. Bxc8 cxb3 29. Bb7 Raxb8 30. cxb8=Q Ne2+ 31. Kh2 Qf4+ 32. g3 Rxb8 33. gxf4 Rxb7 34. Qxe2 b2 35. Nd2 gxf4 36. Nb1 $18 {Komodo10, which initially thought that b6 was best for Bl}) (20... Qc6 21. Re3 (21. Bb5 Qxc7 $19) 21... Qxc5 22. Rxc3 Ke7 23. Rxb7 Nf6 $15 {Komodo10}) 21. Rxb7 $11 {Deep Fritz13} Rc8 22. Rb8 Ne7 23. Bb5 O-O 24. Qxd7 Bxf2+ 25. Kxf2 Rxb8 26. Bxe7 Qb6+ 27. Ke2 Rbc8 28. Bxf8 Rxc7 29. Qe8 Nf6 30. Bc5+ Nxe8 31. Bxb6 axb6 32. Bxe8 Rxc2+ 33. Nd2 Kf8 34. Bb5 Ra2 35. a4 Ke7 $11 {Komodo10}) 20... Bc6 $19 21. Rad1 (21. Bb5 Bxb5 $2 { intended by Bl & seen by Wh; also pm analysis pm analysis; should actually lose} (21... Nhf4 $1 $19 {as in the game, holds everything.}) 22. Qxb7 (22. Rab1 Bc6 23. Rxb7 Bxd5 24. Rb8+ Kd7 $19 {calculated by Bl}) 22... Qc6 (22... Bc6 23. c8=Q+ Rxc8 24. Qxc8+ Qd8 25. Qxc6+ Qd7 26. Qa8+ Qd8 27. Qxa7 Bxe1 28. Rb1 $18 {Komodo10}) 23. Qb8+ $1 Kd7 24. Red1+ Ke6 (24... Bd4 25. Nxe5+ Ke6 ( 25... Nxe5 26. Rxd4+ Ke6 27. c8=Q+ Rxc8 28. Rd6+ Ke7 29. Rxc6+ Ke8 30. Rxc8+ Kd7 31. Qb7+ Ke6 32. Qe7#) 26. Nxc6 Raxb8 27. Nxd4+ Kf6 28. cxb8=Q Rxb8 29. Rab1 a6 30. a4 $18)) 21... Nhf4 {playing safe} (21... Bxd5 {best according to both Engines} 22. Rxd5 Bxe1 23. Bb5+ Qc6 24. Bxc6+ bxc6 25. Rd8+ Rxd8 26. cxd8=Q+ Kxd8 27. Nxe1 Nhf4 {leaves Bl a R up}) 22. Qxf7+ (22. Qd8+ {Komodo10} Rxd8 23. Rxd8+ Qxd8 24. cxd8=Q+ Kxd8 25. Re3 b6 (25... Bb2 26. Rb3 b6 27. Bxb6+ axb6 28. Rxb2 Bxe4) 26. Rxc3 bxc5 27. Nd2 Ke7 {leaves Bl a piece up}) (22. Qd6 {Deep Fritz13} Qxd6 23. Bxd6 b5 24. Bf1 Bxe1 25. Nxe1 f6 $19) 22... Qxf7 23. Rd8+ (23. Bxf7+ Kxf7 {& the h8 R protects against Rd8}) 23... Rxd8 24. cxd8=Q+ Kxd8 25. Bxf7 Bxe1 26. Nxe1 Bxe4 (26... b6 27. Be3 Bxe4 {Komodo10}) 0-1 [Event "DyfedLeague:AberystwythA-AberystwythB"] [Site "?"] [Date "2017.03.21"] [Round "?"] [White "Francis, Matthew"] [Black "Holman, S."] [Result "1-0"] [ECO "A36"] [WhiteElo "1704"] [BlackElo "1334"] [Annotator "Rudy"] [PlyCount "61"] [EventDate "2017.03.22"] 1. e4 c5 2. c4 d6 3. Nc3 Nc6 4. d3 g6 5. g3 Bg7 6. Bg2 e6 7. Nge2 Nge7 8. O-O O-O 9. Be3 b6 (9... Nd4 {occupies d4 before Wh can advance there; Bl scores close to 60% from this}) 10. Qd2 {now Wh scores 60%} Re8 (10... Bb7 11. Rae1 Nd4 {Sen-N.Jackson, Dyfed League 2013,1/2-1/2}) 11. d4 Ba6 (11... cxd4 12. Nxd4 Ba6 (12... Ne5 13. b3 Bb7 14. Rad1 a6 15. Nde2 Nc8 16. h3 Qc7 17. f4 Nc6 $14 { Faini-Marini, Viterbo op 2009,1-0}) 13. Ndb5 Na5 14. b3 d5 15. Rad1 dxc4 $11 { Stanetzek-Heedt, Lohmar 1998,0-1}) (11... Bb7 12. dxc5 dxc5 13. Rad1 Qxd2 14. Rxd2 Ne5 15. b3 Ng4 16. Bf4 e5 17. h3 exf4 18. hxg4 fxg3 19. f4 Red8 $11 { Holicky-Lecky, SVK ch, Banska Stiavnica 2015,1-0}) 12. b3 Qc7 (12... e5 13. dxe5 dxe5 14. Nd5 Nxd5 15. exd5 Nd4 $11 {Komodo10}) 13. Rad1 (13. Nb5) 13... Rad8 $11 14. Qc2 f5 {Bl needs to attack the centre, but this is the wrong pawn, as it weakens Bl's base} (14... e5 15. d5 Nd4 $11 {Komodo10}) 15. Nf4 (15. d5 $16 {Komodo10} Nd4 16. Bxd4 cxd4 17. Nxd4 Bxd4 18. Rxd4 e5 19. Rd2 $16) 15... Qc8 16. d5 Nd4 17. Bxd4 cxd4 18. Nce2 exd5 (18... e5 19. Ne6 b5 $1 20. Rc1 (20. Nxd8 Rxd8 21. Rc1 bxc4 22. bxc4 Rd7 23. f4 Rc7 24. fxe5 Rxc4 25. Qd2 Bxe5 26. Nf4 Rc3 27. Rfe1 fxe4 28. Bxe4 Bc4 $11 {Komodo10; Bl has activity & a passed pawn to compensate for the exchange}) 20... bxc4 21. bxc4 Rd7 $11 {Komodo10; Bl has a protected passed pawn}) 19. exd5 $16 Rd7 (19... b5 20. Rc1 bxc4 21. bxc4 Rd7 22. Ne6 Bh6 23. N2f4 Rb7 24. Qa4 Rb6 25. Nxd4 $18 {Komodo10}) 20. Nxd4 $18 b5 21. Nfe6 (21. Nde6 Be5 22. c5 dxc5 23. d6 Bxf4 24. gxf4 Bb7 25. Bxb7 Qxb7 26. Nxc5 Qc6 27. dxe7 $18 {Komodo10}) 21... Bxd4 22. Rxd4 Bb7 23. Qd2 f4 { trying to get some activity} 24. Rxf4 (24. Bh3 $18 {Komodo10}) 24... Nf5 25. Bh3 {Komodo10} (25. Re1 {Julie}) (25. Rxf5 {Rudy; Wh has 3 pawns for the exchange, a weakened K & Bl pieces all tied down. Also the KR can join in with lethal consequences} gxf5 26. Qg5+ (26. cxb5 Rf7 27. Rc1 Qd7 (27... Qb8 28. Bf3 Bc8 29. b6 axb6 30. Bh5 $18 {Komodo10}) 28. Qg5+ Kh8 29. Rc7 $18 {Komodo10}) 26... Kh8 27. Qxf5 (27. Rc1 Ree7 28. Qxf5 Qe8 29. Qf6+ Kg8 30. cxb5 (30. Bh3 { also}) 30... Qf7 31. Qh4 Re8 32. Rc4 Kh8 33. Rf4 Qe7 34. Rf6 Bc8 35. Qd4 Kg8 36. Rf4 h5 37. Rf5 {Komodo10, who considers Bl's best now is to give up the Q with} Qg7 38. Nxg7 Rxg7 39. Rxh5 $18) 27... bxc4 28. Rd1 Rg7 {Bl has to return the exchange( Komodo10)} (28... h5 {examined by Rudy in the train home, to hold up Rg4, but Wh can just prepare to take on h5, leaving the Bl K wide open. Wh has all the fun.} 29. Rd4 Rh7 30. Qf6+ Kg8 31. Qg6+ Kh8 32. Rh4 Qd7 33. Rxh5 (33. Be4 {just wins the exchange back}) 33... Rxh5 34. Qxh5+ Kg8 35. Qg6+ Kh8 36. Qf6+ (36. Be4) 36... Kg8 37. Be4 Rc8 38. Qg6+ Kh8 39. Ng5 Rc7 40. Bf5 Qg7 41. Qe8+ Qg8 42. Qh5+ Kg7 43. Qg6+ Kh8 44. Qh6+ Rh7 45. Bxh7 Qg7 46. Qh5 { wins the Q} (46. Nf7+ Qxf7 47. Bg6+ {wins Q})) 29. Nxg7 Kxg7 30. Qg5+ Kh8 31. bxc4 Qxc4 32. Qf6+ Kg8 33. Qxd6 {and Wh is comfortably ahead- extra material, powerful passed pawn & an exposed Bl K}) (25. Rc1 $1 {best, after consideration by Komodo10} b4 26. Rxf5 gxf5 27. Qg5+ Kh8 28. Qf6+ Kg8 29. c5 dxc5 30. Rxc5 Qb8 31. Qg5+ Kh8 32. Qxf5 Rc8 33. d6 Rxc5 34. Nxc5 Rxd6 35. Bxb7 $18 {Komodo10}) 25... Rxe6 (25... Rf7 {Rudy & Komodo10; Bl can cling on} 26. Bxf5 gxf5 27. Qd4 (27. Rh4 {Matthew} Qd7 28. Rc1 b4 29. Rh6 f4 30. Qxb4 Bc8 31. Qc3 Qb7 32. Re1 Rfe7 33. gxf4 Bxe6 34. Rhxe6 Rxe6 35. Rxe6 Qf7 36. Rxe8+ Qxe8 37. Qf6 Qe1+ 38. Kg2 Qe4+ 39. Kg3 Qd3+ 40. f3 Qf1 41. Qxd6 Qg1+ 42. Kh3 Qf1+ 43. Kg4 Qg2+ 44. Kf5 Qh3+ 45. Kf6 Qh4+ 46. Ke6 Qh6+ 47. Kd7 Qg7+ 48. Kd8 { and Wh will be able to swap off Qs}) 27... Rxe6 (27... bxc4 28. Rxf5 Rxe6 29. Rxf7 Kxf7 30. dxe6+ Qxe6 31. Qf4+ Kg7 32. bxc4 $18) 28. dxe6 Qxe6 29. cxb5 Re7 30. f3 $18 {Komodo10}) 26. Bxf5 (26. dxe6 Qc6 (26... Re7 27. Bxf5 gxf5 28. Rxf5 Rxe6 29. Rg5+) 27. f3 Rg7 28. Bxf5 gxf5 29. Rxf5 $18 {Komodo10}) 26... Re5 27. Bxd7 Qxd7 28. Re1 Rh5 29. Qe2 (29. Rfe4 {Rudy & Komodo10}) 29... Re5 30. Re4 Rf5 31. Re8+ (31. Re7 {Komodo10}) 1-0 [Event "DyfedLeague: AberystwythA-AberystwythB"] [Site "?"] [Date "2017.03.21"] [Round "?"] [White "Clarke, Damien"] [Black "Geraghty, A."] [Result "0-1"] [ECO "D11"] [WhiteElo "1177"] [BlackElo "1551"] [Annotator "Rudy"] [PlyCount "58"] [EventDate "2017.03.22"] 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. c5 {it may be difficult to keep the pawn supported on this square} (4. Nc3) (4. e3 {main lines}) 4... Bf5 5. Nc3 Nbd7 6. h3 (6. Bf4 {main, keeps control over e5}) 6... e6 (6... h6 7. Bf4 e6 8. e3 { transposes to quite a number of games}) 7. g4 {Deep Fritz14} (7. b4 b6 8. Ne5 Nxe5 9. dxe5 Nd7 10. Qd4 bxc5 11. bxc5 Bxc5 12. Qa4 Qb6 13. e3 O-O 14. Be2 Nxe5 {Gallo Ascensio-Poveda, Santander UDI University op U27 2012,0-1}) (7. Bf4 Be7 8. g4 {Komodo10}) 7... Bg6 8. Bg5 (8. Bg2 {Komodo10}) 8... Be7 9. Ne5 {loses a pawn} (9. b4) 9... Nxe5 10. dxe5 Nd7 11. Bxe7 Qxe7 12. b4 Nxe5 $19 13. Bg2 O-O 14. O-O Rad8 (14... a5) 15. e3 Qf6 16. f4 {trying to trap a B, but Wh's N & centre are loose} (16. Ne2 Nc4 17. Ng3 d4 $19 {Komodo10}) 16... Nc4 17. Qe2 ( 17. Qd4 {only try} e5 18. fxe5 Qxe5 19. Qxe5 Nxe5 20. Rf4 Nd3 21. Rd4 Rfe8 $19 {and Wh has several weak pawns in danger}) 17... Qxc3 18. Rac1 Qxe3+ 19. Qxe3 Nxe3 20. Rfe1 Nxg2 21. Kxg2 Be4+ (21... d4) 22. Kg1 f5 23. g5 d4 24. h4 d3 25. Rc3 Rd4 (25... Bf3 26. Rf1 Bg4 27. Rcc1 d2 28. Rcd1 Rd4 $19 {Komodo10}) (25... d2 26. Rd1 e5 {Komodo10, mobilises another passed pawn}) 26. a3 d2 27. Rd1 Rfd8 28. h5 Rd3 29. Rxd3 Rxd3 0-1

Sunday, 19 March 2017

Across a Crowded Room

Aberystwyth's B team had a good evening on Tuesday 7 March, while the A team were losing narrowly to Cardigan in the cosy space of the small function room at the Brynamlwg Tavern. Julie van Kemenade, continuing her return to chess, played a typically enterprising piece sacrifice with Black against Iwan Griffiths to get a dangerous attack which he was unable to defend. James Corrigan dominated the centre against Owen Llywelyn's King's Indian, and the Black counterplay on the queenside was not enough compensation. Ian Finlay, playing another King's Indian, missed a chance to go a piece up, but Tegwyn Jones lost on time. On fourth board, Sam Holman did win a piece, and by the time Emyr Llywelyn had regained it, White's attack was unstoppable. A clean sweep for the B team, 4-0.

[Event "DyfedLeague:AberystwythB-Gwyddbwyll.com"] [Site "?"] [Date "2017.03.07"] [Round "?"] [White "Griffiths, I."] [Black "Van Kemenade, J."] [Result "0-1"] [ECO "B07"] [WhiteElo "1609"] [BlackElo "1743"] [Annotator "Rudy"] [PlyCount "60"] [EventDate "2017.03.08"] 1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. Nf3 Qc7 5. h3 e5 6. Bg5 Nbd7 7. Be2 Be7 8. Qd2 {leaving castles options open} h6 (8... O-O 9. g4 Re8 10. Bxf6 Bxf6 11. g5 Be7 12. d5 Nf8 13. O-O-O Ng6 {Suliborski-Kubien, Wroclaw op 2011,0-1}) (8... b5 9. a3 a6 10. O-O O-O {Bhawoodien-Solomons, RSA ch Cape Town 2014,1/2-1/2}) 9. Bh4 Nf8 10. Bxf6 Bxf6 11. d5 c5 (11... Ng6) 12. Nb5 (12. Bb5+ Ke7 $11) 12... Qd8 13. c4 {the pawn structure makes it a Czech Benoni( usually reached in the first4 moves)} Ng6 14. g3 a6 15. Nc3 Bd7 16. Kf1 {keeping the R guarding h3} O-O 17. Kg2 Be7 $11 18. Nh2 {angling for f4} Bg5 19. Qd1 f5 20. exf5 Bxf5 21. Bg4 Qf6 {Komodo10} 22. Rf1 (22. h4 Bxh4 $15 23. gxh4 Nxh4+ 24. Kg3 e4 $19 { Komodo10}) 22... Ne7 (22... Rae8 {Komodo10} 23. Qe2 (23. Bxf5 Qxf5 24. Qg4 { Rudy} e4 25. Qxf5 Rxf5 26. Rae1 Bd2 27. Rxe4 Rfe5 28. Nf3 Rxe4 29. Nxe4 Rxe4 30. Nxd2 Rd4 31. Nb3 Rxc4 32. Na5 Rd4 33. Nxb7 Rxd5 34. Re1 Rd2 $11) 23... e4 24. Rae1 $14) 23. h4 {Wh gets tempted the second time round; however Bl gets chances & the Wh defence has to be accurate} Bxh4 24. gxh4 Qxh4 25. Bxf5 $15 { brings another Bl piece into play} (25. Kh1 Ng6 (25... Bg6 26. f3 Nf5 27. Bxf5 Rxf5 28. Qe1 Rh5 29. Qxh4 Rxh4 30. Rg1 Bd3 31. b3 Rf8 32. Rg3 b5 $14) (25... Rab8 26. Qf3 b5 27. cxb5 axb5 28. Ne4 Bxe4 29. Qxe4 Rf4 30. Be6+ Kh8 31. Qg2 Rbf8 $11 {Komodo10}) 26. Rg1 Nf4 27. Bxf5 Rxf5 28. Qg4 Qxg4 29. Rxg4 Nd3 30. Ne4 Nxf2+ 31. Nxf2 Rxf2 32. Rg6 Rd8 33. Rag1 Rf7 34. Rxh6 $16 {Komodo10}) 25... Rxf5 26. f4 (26. Ne2 Rh5 $19 27. Rh1 Qh3+ 28. Kg1 Rg5+ 29. Ng3 Rxg3+ 30. fxg3 Qxg3+ 31. Kf1 Rf8+) (26. f3 Raf8 27. Qe1 Qxc4 28. Kh1 Rh5 29. Qe4 Rf4 30. Qxc4 Rxc4 31. Kg1 Rd4 $15 {Bl is getting too many pawns for the piece}) 26... exf4 $19 (26... Rh5 $1 $19 {Komodo10} 27. Rh1 (27. Ng4 Ng6 28. Kf3 Rf8 29. Ke3 Rxf4 30. Rxf4 exf4+ 31. Kd2 Rg5 $19 {Komodo10; the N has no retreat}) (27. Nf3 Qxf4 $1 (27... Qg4+ {also wins} 28. Kf2 Rh3 29. Qe2 Qg3+ 30. Ke3 Qxf4+ 31. Kd3 Rf8 $19) 28. Ne2 Qg4+ 29. Kf2 Rf8 $19) 27... exf4 28. Qf3 Rg5+ 29. Kf1 Nf5 30. Ne4 Ne3+ 31. Ke2 Rg2+ 32. Kd3 Rxh2 $19 {Komodo10}) 27. Qf3 (27. Nf3 Qg3+ 28. Kh1 Rh5+ 29. Nh2 Rxh2#) (27. Ne4 f3+ 28. Rxf3 Qxe4 $19) (27. Qe1 Qg5+ 28. Kh1 Re5 29. Qf2 Nf5 $19 {all Komodo10}) 27... Rg5+ 28. Kh1 Nf5 29. Ne4 (29. Qxf4 Ng3+ { drops the Q}) 29... Ng3+ 30. Nxg3 fxg3 {Bl gets the piece back with interest} ( 30... fxg3 31. Qg2 (31. Qe2 g2+ 32. Qxg2 (32. Kg1 gxf1=Q+ 33. Kxf1 Rf8+ 34. Nf3 Qh1+ 35. Kf2 Rg2+ 36. Ke3 Rxe2+ 37. Kxe2 Qg2+ 38. Kd1 Rxf3 39. Rc1 Rf1#) 32... Rxg2 33. Kxg2 Qxc4 $19 {Komodo10}) 31... gxh2 32. Qe2 (32. Qxh2 Qe4+ {mates}) 32... Rg1+ 33. Rxg1 hxg1=Q+ 34. Kxg1 Rf8 35. Rf1 (35. Qg2 Rf4 (35... Qd4+ 36. Kh1 Rf4 {both win the Q for R})) 35... Qg3+ 36. Qg2 Qxg2+ 37. Kxg2 Rxf1 38. Kxf1 Kf7 {Komodo10; and the endgame is easy}) 0-1 [Event "Dyfed League:AberystwythB-Gwyddbwyll.co"] [Site "?"] [Date "2017.03.08"] [Round "?"] [White "Corrigan, James"] [Black "Llywelyn, O."] [Result "1-0"] [ECO "E62"] [WhiteElo "1449"] [BlackElo "1513"] [Annotator "Rudy"] [PlyCount "76"] [EventDate "2017.03.08"] 1. c4 Nf6 2. Nf3 g6 3. Nc3 Bg7 4. d4 d6 5. Bg5 (5. e4) (5. g3 {main}) 5... O-O 6. Qd2 (6. e3 {is the Smyslov, system, with Qc2 & Rd1 to follow}) 6... Nbd7 7. g3 (7. Bh6) 7... Re8 (7... c6) (7... e5) 8. Bg2 c6 9. O-O Qc7 10. e4 e5 11. b4 $146 {a little risky opening up the long diagonal/ this is usually prepared by Rb1or closing the centre} (11. Rfe1) (11. d5 {main}) 11... exd4 12. Nxd4 Ne5 $15 13. Qe2 (13. c5 dxc5 14. bxc5 Nfd7 15. Nb3 Nc4 16. Qe2 Nde5 17. Rad1 Be6 18. Bc1 Na5 19. Qc2 Bc4 20. Rfe1 Rad8 $15 {Komodo10}) 13... Bg4 (13... Qb6 $1 { attacks N & b4 pawn,} 14. Nc2 Bg4 {f pawn now pinned} 15. Qe3 Qxe3 16. Nxe3 Nf3+ 17. Bxf3 Bxf3 18. Bxf6 Bxf6 19. Rac1 Bxe4 $17 {Komodo10}) 14. f3 Bd7 ( 14... Qb6 15. Rad1 Bd7 $17) 15. Rab1 (15. Rfd1) 15... a6 16. Rfc1 (16. c5) 16... c5 {creates a d5 weakness} (16... b5 $1 17. cxb5 axb5 18. Rd1 (18. Ncxb5 $2 Qb6 $19 {unpinning with a counerpin}) 18... Ra3 $15 {Komodo10}) 17. Bxf6 Bxf6 18. Nd5 Qd8 19. bxc5 dxc5 20. Nb3 {Bl has Q side pawn weaknesses as well} Be7 (20... b5 $1 21. Nxc5 Nxc4 22. Nxd7 Bd4+ 23. Kh1 Qxd7 24. Qd3 Qa7 25. a4 $14 {Komodo10}) 21. Nd2 (21. f4 Nc6 22. Qf2 b6 23. Rd1 Rb8 24. e5 $16 {grips the centre, Komodo10}) 21... Bc6 22. f4 Nd7 23. Nf3 (23. e5 $16 {creates an e4 invasion square}) 23... Bxd5 24. cxd5 Nf6 {drops a pawn} (24... b5 25. e5 c4 26. Kh1 Bc5 27. a4 {and the Wh centre pawns are better than the Bl Q side pawns ( the Wh pieces are in more aggressive positions, & can exploit both the strength of their own & the weakness og the opposition pawns}) 25. Rxb7 $18 Bf8 26. Ne5 Qc8 27. Rcb1 (27. Rxf7 {quite playable} Rxe5 28. Rxf6 $18) 27... Re7 28. Rxe7 Bxe7 29. Nc6 {a superb outpost for the N, supported at a distance by the B} Bf8 30. e5 Nd7 31. d6 (31. e6 {also strong}) 31... Qe8 32. Qe4 (32. Qc4 {Komodo10}) (32. Ne7+ Bxe7 33. Bxa8 Bxd6 34. Bd5 {Rudy, also possible, but the R is doing no harm}) 32... Kg7 33. Rb7 Qc8 34. Na5 (34. Rc7 Qe8 35. Bh3 { Komodo10 & Deep Fritz13}) 34... Rb8 35. Bh3 (35. Rc7 Qe8 36. Qc6) 35... Rxb7 36. Qxb7 Qxb7 37. Nxb7 c4 38. Bxd7 c3 {the pawn can be stopped by either B or N.} 1-0 [Event "DyfedLeague:AberystwythB-Gwyddbwyll.com"] [Site "?"] [Date "2017.03.07"] [Round "?"] [White "Jones, Tegwyn"] [Black "Finlay, I."] [Result "0-1"] [ECO "E61"] [WhiteElo "1197"] [BlackElo "1372"] [Annotator "Rudy"] [PlyCount "54"] [EventDate "2017.03.08"] 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Bf4 d6 5. Nf3 O-O 6. e4 (6. e3 {more usual with this London system setup}) 6... Nbd7 7. Bd3 {obstructs the d file, especially if Wh is considering exchanging on e5} (7. Be2 {more positional}) 7... Re8 (7... Nh5 8. Be3 e5 {scores well for Bl, 66%}) 8. O-O e5 9. dxe5 dxe5 10. Be3 (10. Bg5) 10... b6 {Komodo10} (10... Bf8 11. Qe2 c6 12. Rfd1 Qc7 (12... Nc5) 13. Rac1 a5 14. Na4 b6 15. c5 b5 {Ley-Meudt, Koblenz ch 1994,1/2-1/2}) 11. Qc2 Ng4 12. Bg5 Ngf6 (12... f6 13. Bd2 Nc5 14. Be2 c6 {Bl will try & get a N to d4 via e6}) 13. Rfd1 c5 $6 {gives away the d5 square} (13... c6 {keeps control}) 14. Nd5 $14 Re6 (14... h6 15. Be3 Nb8 16. Qc1 Kh7 17. Bc2 Nc6 18. Ba4 Bb7 19. Qc2 Qb8 20. a3 Rf8 21. Bxc6 Bxc6 22. b4 Qe8 $11 {Komodo10}) 15. a3 Bb7 16. Rac1 $16 Rc8 17. b3 Qe8 18. Be3 Nxd5 (18... Nb8 $5 {trying to put a N on d4 }) 19. cxd5 Rd6 20. Bc4 (20. Nd2 {is a better piece to put on c4; its not blocked by the pawns like the B}) 20... a6 21. Qd2 Nf6 22. Qe2 (22. Qc2 Ng4 23. Bd2 b5 24. h3 Nxf2 25. Kxf2 bxc4 26. bxc4 $16 {the Wh pieces are better placed} ) 22... Nxe4 $17 {a centre pawn is usually more valuable than a side pawn} 23. Bxa6 Bxa6 24. Qxa6 Rcd8 (24... f5) 25. Qc4 Nf6 26. Nxe5 Rxd5 (26... Qxe5 $19) 27. Rxd5 Nxd5 $17 {and Wh lost on time} 0-1 [Event "DyfedLeague:AberystwythB-Gwyddbwyll.com"] [Site "?"] [Date "2017.03.07"] [Round "?"] [White "Holman, S."] [Black "Llywelyn, E."] [Result "1-0"] [ECO "B09"] [WhiteElo "1334"] [BlackElo "943"] [Annotator "Rudy"] [PlyCount "53"] [EventDate "2017.03.08"] 1. e4 g6 2. d4 Bg7 3. f4 d6 4. Nf3 Nf6 5. Nc3 O-O 6. Bc4 {vey aggressive, though Bl can equalise with a tactic.} Nbd7 {dangerous} (6... Nxe4 $1 {breaks up the centre, & leaves the f4 pawn obstructing Wh's development} 7. Nxe4 (7. Bxf7+ Rxf7 {is also fine for Bl}) 7... d5) (6... c6 {is another way to limit the power of the B} 7. e5 dxe5 8. fxe5 Nd5) 7. e5 (7. O-O {also scores 70%+ for Wh}) 7... Ne8 (7... dxe5 8. fxe5 {is worse as it opens more lines}) 8. e6 Ndf6 (8... fxe6 {had to be tried} 9. Bxe6+ Kh8 10. Ng5 Nef6 11. Nf7+ (11. O-O { may be even stronger}) 11... Rxf7 12. Bxf7 $16 {though somehow Bl managed to win 2 games out of 3}) 9. exf7+ Kh8 (9... Rxf7 10. Bxf7+ Kxf7 11. O-O $16 { is the best bet}) 10. fxe8=Q $18 Qxe8 11. O-O e6 12. Qe1 Qe7 13. Qh4 Re8 14. Re1 c6 15. d5 (15. Ng5) (15. Bd3) 15... cxd5 16. Nxd5 Nxd5 17. Ng5 {both Players had seen that} (17. Qxe7 Nxe7 {& Bl regains the piece}) (17. Bxd5 { though is still correct, because after} Qxh4 {breaking the pin against the Q} 18. Nxh4 {there is still a pin against the R}) 17... Nf6 {However , despite returning the piece, Wh still has a winning attack against the K as Bl's Q side pieces are unable to help in the defence} 18. Bd2 (18. Bd3 $1 Kg8 19. f5 h6 20. Nxe6 g5 21. Qd4 (21. Bxg5 hxg5 22. Nxg5 Qd8 23. Kh1 {is only a small advantage for Wh; Komodo10}) 21... Qf7 22. Qxd6 Ng4 23. Bd2 $18 (23. Bc4 $18 { Komodo10})) 18... Nh5 {hoping to use a pin on the Q} (18... d5 19. Bd3 Kg8 20. f5 gxf5 21. Bxf5 h6 22. Nxe6 Ne4 23. Qxe7 Rxe7 24. Nxg7 Kxg7 25. Bc3+ Kg8 26. Bg6 Re6 27. Bxe4 Rxe4 28. Rxe4 dxe4 29. Bd4 b6 30. b3 Bf5 31. c3 $18 {Komodo10} ) 19. f5 $1 $18 Bxb2 20. Rad1 (20. Rab1 {may have been played}) 20... Bd4+ 21. Kh1 (21. Qxd4+ $18) 21... h6 {will the pin work?} 22. fxg6 (22. Qxd4+ {also}) 22... Bf6 23. Nf7+ Kg7 (23... Qxf7 24. gxf7 Bxh4 25. fxe8=Q+) 24. Qxh5 Bg5 25. Bxg5 Qf8 26. Qxh6+ Kg8 27. Qh7# 1-0

Saturday, 11 March 2017

Standing Room Only

The capacity of the small function room at the Brynamlwg Tavern was tested to the full on Tuesday 7 March, when the A and B teams had matches at the same time. With the addition of another table, we were able to fit everyone in, and it is at any rate a cosier venue than the St David's Club was in its latter days. News of the B team match will follow in the next post. Cardigan were once again visiting, this time to play the A team. On top board Rudy van Kemenade had prepared carefully for his Leningrad Dutch against Howard Williams, but seemed to lose patience in the middle game, loosening his kingside in search of an attack that was not really there; instead it was White who broke into his opponent's castled position. Robbie Wright tried for pressure on the queenside in his London System against Iolo Jones, but ended up getting his rook pinned and losing the exchange, resigning rather prematurely when he still had some play. Adam Robinson also seemed to have pressure for a while against Tony Haigh's Trompowksy, but apparently missed a chance of an advantage just before the draw was agreed. I got a free gift from Awne Osinga when he dropped a piece on move 5 - not the first time that mistake has been made in the same postion in rated games, according to Rudy's database - after which I had no real problem clinching the win. As with last week's match, the top two boards secured victory for Cardigan, 2½-1½.

[Event "Dyfed League:AberystwythA-Cardigan"] [Site "?"] [Date "2017.03.07"] [Round "?"] [White "Williams, AH."] [Black "Van Kemenade, R."] [Result "1-0"] [ECO "A87"] [WhiteElo "2342"] [BlackElo "2009"] [Annotator "Rudy"] [PlyCount "61"] [EventDate "2017.03.08"] 1. Nf3 f5 2. g3 Nf6 3. Bg2 g6 4. d4 Bg7 5. c4 O-O 6. O-O d6 7. Nc3 c6 8. Rb1 a5 9. b3 (9. Qb3 Kh8 10. Rd1 Ne4 {Williams-Zeidler, WCPL 2016,1-0; which Bl had prepared against,but Wh had forgotten this & reverted to an earlier line against Sven}) 9... Na6 10. Bb2 Qe8 (10... Bd7 11. d5 Nc5 12. Nd4 cxd5 13. cxd5 Rc8 14. e3 Qe8 {Williams-Zeidler, WCPL 2015, 1/2-1/2}) (10... Qc7 {main} 11. d5 e5 12. dxe6 Bxe6 13. Ng5 Bd7 14. Qd2 Rad8 15. Rbd1 Bc8 16. Na4 h6 17. Nh3 Ne4 { Williams-L.Roberts, Dyfed Open 2016,1/2-1/2}) 11. d5 Bd7 (11... Nc7 {sideline}) 12. Nd4 Nc5 {transposes back into a main line from 7...Qe8 rather than 7...c6} (12... Nc7 {alternative, but better results for Wh, as in this line the a5 move doesn't help Bl}) 13. e3 (13. a3 e5 {main} (13... Rc8) 14. dxe6 Nxe6 15. Nxe6 Qxe6 16. Qd2 Rad8 17. Rbd1 Bc8 18. e3 Qe7 19. Rfe1 Ne4 {Ralphs-Fathallah, S Wales op Treforest 2010,1/2-1/2}) 13... e5 (13... Rc8 {main} 14. Qe2 Qf7) 14. dxe6 Bxe6 15. Nxe6 (15. Qc2 Bf7 (15... Ng4 16. Rbd1 Rd8 17. Rfe1 h6 18. a3 Bf7 19. Nb1 Ne5 20. f4 Ng4 21. Bc1 Qe7 {Fraczek-Szromba, POL ch U16, Bartkowa 2002, 0-1}) 16. Rbd1 Qe7 17. Rfe1 Qc7 18. Nde2 Rfe8 19. Nf4 Qe7 {Ehlvest-Nikolic, Erevan 1996,1/2-1/2}) 15... Qxe6 16. Ne2 (16. Qc2 Rad8 (16... Nfe4 17. Rbd1 Rad8 18. Nxe4 Nxe4 19. Bxg7 Kxg7 20. Rd4 Rfe8 21. Rfd1 Rd7 22. Bxe4 fxe4 23. Qd2 Red8 24. Qxa5 $16 {Goldenberg-Atzmon, Sydney op 2007,1-0}) 17. Rbd1 Rfe8 ( 17... Qe7 18. a3 Qc7 19. Ba1 Kh8 20. Rb1 Ne6 21. Ne2 Ng4 {Schenk=Bartel, Bundesliga 2016,0-1}) 18. Ne2 Nce4 19. Nd4 Qf7 20. f3 Nc5 21. Rfe1 Ra8 22. a3 { Safranska-Shchekachev, Bourbon Lacy op 1998,0-1}) 16... Nfe4 (16... Ng4) 17. Bd4 g5 $5 {hoping to start a K side attack, but this loosens Bl's own K side} ( 17... Be5 {Komodo10; considered} 18. f3 Nf6 19. Qd2 a4 $11 {Komodo10. similar to some pm analysis}) (17... Rfe8) 18. Qc2 (18. Bxg7 Kxg7 19. f3 Nf6 20. Qd2 Qe5 21. Nd4 Kg8 22. Rbd1 Nh5 23. a3 $18 {Komodo10}) 18... Rae8 (18... g4 { Komodo10; considered & pm analysis} 19. Nf4 Qh6 20. f3 (20. h3 $1 {Komodo10} gxh3 21. Bxh3 Be5 22. Bg2 (22. Kg2 Qg5 23. Rh1 Rae8 $14 {Komodo10}) 22... Rae8 $14) 20... gxf3 $1 (20... Nf6 21. Rbd1 (21. fxg4 fxg4 {pm analysis} (21... Nxg4 22. h3 Bxd4 23. exd4 Ne3 24. Qc3 Nxg2 25. dxc5 Nxf4 26. Rxf4 dxc5 27. Qf3 Qg7 $11 {Komodo10}) 22. Bxc5 dxc5 23. Qf5 $16 {Komodo10}) 21... Nfd7 22. Bxg7 Kxg7 23. fxg4 fxg4 24. a3 Ne5 25. b4 $14 {Komodo10}) 21. Bxf3 Be5 22. Rbd1 Rae8 23. a3 Kh8 $11 {Komodo10}) 19. Rbe1 Qg6 (19... g4) 20. Bxg7 {Komodo10} Qxg7 (20... Kxg7 21. f3 Nf6 22. Nd4 Nfd7 23. e4 fxe4 24. fxe4 Rxf1+ 25. Rxf1 Kg8 26. Nf5 Ne5 27. Qc3 b6 28. a3 $14 {Komodo10}) 21. f3 $16 Nf6 22. Nd4 $16 f4 23. Nf5 Qd7 $2 {looks at the N, but lets the B in with an extra tempo.} (23... Qg6 { Bl had intended Qg6, pinning the N, but then Wh wins an exchange.}) ({pm analysis helps control e5 to put a r there perhaps} 23... Qc7 24. exf4 gxf4 25. Qd2 (25. Bh3 fxg3 26. hxg3 d5 27. Kg2 Kh8 28. Qc3 Ne6 29. cxd5 cxd5 30. Qxc7 Nxc7 31. Nd6 Rxe1 32. Rxe1 b6 33. Re7 $18 {Komodo10}) (25. Qc3 Ne6 (25... Nh5 26. Nh6#) 26. g4 d5 27. cxd5 cxd5 28. Qxc7 Nxc7 29. Kf2 $16) 25... d5 $16 { Komodo10; protects f4; Bl is not too worried if Wh gets 2 doubled f pawnsas the Wh B then is not a very good piece}) 24. exf4 (24. Bh3 g4 25. fxg4 fxg3 26. g5 gxh2+ 27. Kxh2 {isnt that good for Bl, but why allow complications?}) 24... gxf4 25. Bh3 Qd8 (25... Kh8 26. Qc3 b6 27. Rxe8 Qxe8 28. Nxd6 Qg6 29. Kg2 $18 { Bl has nothing for the pawn}) 26. Qc3 (26. Rd1 $18 {Komodo10; d6 is dead}) 26... h5 {trying to give the K some space ( though it takes a square away from the N} (26... Nh5 27. Nh6#) (26... Ne6 27. Nh6+ Kg7 28. Bxe6 Kxh6 29. Qd2 Nh5 30. Bg4 d5 31. Rxe8 Rxe8 32. Bxh5 Kxh5 33. Qxf4 $16 {Komodo10}) (26... fxg3 27. hxg3 Ne6 28. Nh6+ Kg7 29. Bxe6 Kxh6 30. g4 d5 31. Qe5 Kg6 32. Kg2 $18 {Komodo10 }) 27. Qd2 (27. gxf4 $18 {Komodo10}) (27. Rd1 $18 {Komodo10}) 27... Ne6 (27... Nh7 28. Rxe8 Rxe8 29. Qxf4 $18 (29. gxf4 Qf6 30. Kh1 $18 {Komodo10})) 28. Nh6+ (28. gxf4 Ng7 29. Qg2 Qc7 30. Rxe8 Rxe8 31. Qg6 Nh7 32. Kh1 $18 {Komodo10}) 28... Kg7 29. Bxe6 Kxh6 30. Qxf4+ Kh7 (30... Kg6 31. Qf5+ Kh6 32. c5 dxc5 33. Re5 Kg7 34. Qg5+ Kh8 35. Qh6+ Nh7 36. Bf5 Rf7 37. Rxe8+ Qxe8 38. Bg6 Qf8 39. Qxh5 $18 {Komodo10}) 31. Bf5+ (31. Bf5+ Kg7 32. Qg5+ Kh8 33. Qh6+ Kg8 34. Qg6+ Kh8 35. Re6 Rxe6 36. Qh6+ Kg8 37. Bxe6+ Rf7 38. Qg6+ $18 {Komodo10}) 1-0 [Event "DyfedLeague:AberystwythA-Cardigan"] [Site "?"] [Date "2017.03.07"] [Round "?"] [White "Wright, Robert"] [Black "Jones, IC."] [Result "0-1"] [ECO "D02"] [WhiteElo "1876"] [BlackElo "2219"] [Annotator "Rudy"] [PlyCount "83"] [EventDate "2017.03.08"] 1. d4 Nf6 2. Nf3 e6 3. Bf4 d5 4. e3 c5 5. c3 Nc6 6. Nbd2 Be7 7. Bd3 (7. h3) 7... Nh5 (7... O-O) 8. Be5 {scores 62% for Wh, as opposed to} (8. Bg3 Nxg3 9. hxg3 {44%}) 8... Nxe5 9. Nxe5 Nf6 10. Ndf3 $146 (10. O-O {main}) (10. f4) 10... a6 11. dxc5 (11. O-O O-O 12. dxc5 Bxc5 13. c4 $11 {Komodo10}) 11... Bxc5 12. Qa4+ Nd7 13. Qg4 (13. Bb5 Bd6 14. Bxd7+ Bxd7 15. Nxd7 Qxd7 16. Qxd7+ Kxd7 17. Rd1 Ke7 18. Ke2 $11 {Komodo10}) 13... Qf6 (13... Nxe5 $1 14. Nxe5 O-O 15. Qh3 g6 16. O-O-O Qc7 17. Qg3 f6 18. Ng4 Qxg3 19. hxg3 Kg7 $15 {Komodo10}) 14. Qh5 ( 14. Qg3 Bd6 (14... Nxe5 15. Nxe5 O-O 16. O-O Qe7 17. e4 $11 {Komodo10}) 15. Nxd7 Kxd7 16. Qg4 Kc7 17. e4 dxe4 18. Qxe4 Bd7 19. Qc4+ Kb8 $11 {Komodo10}) 14... Nxe5 15. Qxe5 Qxe5 16. Nxe5 f6 $15 {Bl has 2 Bs & a centre} 17. Nf3 Bd7 18. Kd2 (18. O-O {safer}) 18... e5 (18... Kf7 {Komodo10}) 19. Ne1 O-O-O { gives Wh a target} (19... Kf7) 20. Nc2 Bc6 21. b4 $11 Bb6 22. a4 a5 23. Bb5 Bd7 24. bxa5 (24. Bxd7+ Rxd7 25. Rhb1 $11 {Komodo10}) 24... Bxa5 $15 25. Nb4 Bf5 ( 25... d4 $17 {makes the Wh Kinsecure}) 26. Bd3 Be6 27. Rab1 Kc7 (27... Rd7 $15) 28. Rhc1 (28. Ke2) 28... Rd6 (28... Rc8) 29. Ke2 Kb8 (29... e4 30. Bb5 Kb8 31. c4 $11 {Komodo10}) 30. Na6+ $1 Ka7 31. Nc5 $11 Bc8 (31... Bg4+ 32. f3 Bc8 33. Nb3 Bc7 34. c4 $14 {Komodo10}) 32. Rb5 (32. Nb3 b6 33. Rb2 Ba6 34. Nxa5 bxa5 35. Bxa6 Kxa6 36. c4 dxc4 37. Rxc4 Rb6 38. Rxb6+ Kxb6 39. h4 $11 {Komodo10}) 32... b6 $15 33. Rcb1 (33. f3 Rhd8 34. Kf2 d4 (34... h5) 35. cxd4 exd4 36. exd4 Rxd4 37. Rc2 h6 $15 {Komodo10}) 33... e4 (33... Bxc3 $19 {Komodo10} 34. a5 bxc5 35. Rxc5 Bg4+ 36. f3 Rc8 $19) 34. Bc2 (34. Rxa5+ bxa5 35. Bb5 Bg4+ 36. Kd2 (36. f3 Bf5 $19) 36... Rc8 37. Nb3 Bd7 38. Nd4 Rb8 $17 {Komodo10}) 34... Rc6 (34... Bxc3 35. Bxe4 Rc6 $19 {Komodo10}) 35. Nb3 Ba6 36. Nxa5 bxa5 $17 (36... Rxc3 37. Kd2 Rhc8 38. R5b2 bxa5 $17 {Komodo10}) 37. c4 (37. Kd2 Bxb5 38. Rxb5 Rd8 39. Rxa5+ Kb6 40. Rb5+ Kc7 41. Bb3 Rcd6 42. Kc2 Rb8 43. Rb4 f5 $17 {Komodo10}) 37... Rxc4 $19 38. Kd2 Bxb5 39. Rxb5 Rhc8 40. Rxa5+ Kb6 41. Rb5+ Kc6 (41... Ka6 42. Bb3 R4c5) 42. Bd1 {and Wh resigned, thinking Bl had Rxa4; however} (42. Ra5 {trying to activate the R} Rxc2+ 43. Kxc2 Kb6+ $19 {Iolo}) (42. Bd1 Rc5 43. Rb4 Rc7 44. Be2 Rb7 45. Bb5+ Kd6 {Bl should be winning, but its a long struggle, where Wh has holding chances. Bl will need to organise to push d4 & then get his majority moving on the K side}) 0-1 [Event "Dyfed League:AberystwythA-Cardigan"] [Site "?"] [Date "2017.03.07"] [Round "?"] [White "Haigh, A."] [Black "Robinson, Adam"] [Result "1/2-1/2"] [ECO "A45"] [WhiteElo "1903"] [BlackElo "1768"] [Annotator "Rudy"] [PlyCount "61"] [EventDate "2017.03.08"] 1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c5 4. f3 Qa5+ 5. c3 Nf6 6. Nd2 cxd4 7. Nb3 Qb6 8. Qxd4 Nc6 9. Qxb6 axb6 10. Nd4 e5 11. Nxc6 exf4 12. Nd4 {all main line so far} Nd5 (12... d5) (12... Bc5 {both more frequent, Wh scores 52% &62% against these.As opposed to 47% against the text} 13. Nh3 Nh5 {Haigh-Barnaby, Dyfed Open 2011,1/2-1/2}) 13. e4 (13. g3 {is an alternative though both} Ne3 ({&} 13... Bd6)) (13. Nh3 Bc5 {transposes}) 13... Ne3 (13... fxe3 14. Bc4 (14. Nb5) 14... Nc7 {eg} 15. Ke2 Bc5 16. Kxe3 O-O 17. Nge2 b5 18. Bb3 d6 19. Kd2 $11 { Walton-Jarmany, 4NCL op Wakefield 2016,0-1}) 14. Nh3 (14. Kf2 Bc5 15. Nge2 O-O 16. g3 (16. Nxf4) 16... Nc4 (16... d5) 17. b4 fxg3+ 18. hxg3 Be7 19. Nf4 $16 { Kulicov-Danin, RUS, Central region Tula ch 2007,1/2-1/2}) (14. g3 Nxf1 (14... Bd6) (14... d5) 15. Kxf1 Bd6 16. Nf5 Be5 17. gxf4 Bxf4 18. Nxg7+ Kf8 19. Nh5 $16 {Meszaros-Fabre, Geneve YM Masters 2010,1-0}) 14... Bc5 {Komodo8} (14... Bd6 {Komodo10} 15. Kd2 (15. Kf2 $16) 15... O-O 16. Nf2 Be5 17. Nc2 Nxf1+ (17... d5) 18. Rhxf1 d6 19. Nb4 Be6 20. Kc2 f5 $14 {Leroy-Le Quang, Bagneux op 2000, 0-1}) 15. Kd2 g5 {Komodo8} (15... Nxf1+ 16. Rhxf1 d5 17. Nxf4 dxe4 18. fxe4 O-O 19. Nd5 $16 {Komodo10}) 16. Nxg5 Rg8 (16... d6 $14 {Komodo10}) 17. Nh3 Nxf1+ 18. Rhxf1 Rxg2+ 19. Rf2 Rxf2+ 20. Nxf2 f5 (20... Ra4 {Komodo8} 21. Nd3 Bxd4 22. cxd4 Rxd4 23. Rc1 Kd8 24. Kc3 $16 {Komodo10}) (20... d5 {Komodo10} 21. exd5 Bxd4 22. cxd4 Bf5 $16) 21. exf5 Kf7 22. Nd3 (22. Kd3 $16 {Komodo10}) 22... d5 ( 22... d6 {Komodo10} 23. Nxf4 Bxd4 24. cxd4 Bxf5 25. a3 Rc8 26. Rc1 $16) 23. Ne6 $2 {Wh didn't much like this move either after it had been played- the idea was to get rid of the 2 Bs} (23. Nxf4 $18 {both Engines}) 23... Be3+ $11 { saves the pawn} 24. Kc2 Bxe6 25. fxe6+ Kxe6 26. Re1 Kd6 27. a3 Rg8 28. Re2 Rg1 29. Ne1 Rf1 30. Kd1 {selfpins are always dangerous} (30. Kd3 $11) 30... Rg1 { missing a chance} (30... Bf2 31. a4 Bxe1 32. Rxe1 Rxf3 33. Re2 Rd3+ 34. Ke1 Rh3 $17 {and Bl has acquired a dangous f pawn}) 31. Kc2 {(draw?)} 1/2-1/2 [Event "Dyfed League:AberystwythA-Cardigan"] [Site "?"] [Date "2017.03.07"] [Round "?"] [White "Francis, Matthew"] [Black "Osinga, Awne"] [Result "1-0"] [ECO "D00"] [WhiteElo "1704"] [BlackElo "1386"] [Annotator "Rudy"] [PlyCount "61"] [EventDate "2017.03.08"] 1. d4 d5 2. Bf4 Nf6 3. e3 Nc6 4. c3 (4. c4 {now that Bl has blocked his c pawn} ) 4... Nh5 $2 {hunting down the London system B is routine, but a move too early} 5. Qxh5 $18 g6 6. Qd1 e6 (6... a6 {Combina-Verniest, Lille Luce op 2010, 1-0}) (6... Na5 {Papalini-Russo, Ivrea Autumn cup 2012,1-0; are 2 previous examples}) 7. Nf3 {Wh needs to complete development & then open the position to make his extra piece count} Bg7 8. Bd3 (8. c4) (8. h4 {the Engine ( Komodo10) goes in for the kill much earlier}) 8... O-O 9. Nbd2 a6 10. O-O Re8 11. e4 Ne7 12. exd5 Nxd5 13. Bg3 (13. Be5 $5) 13... Bf6 14. Ne5 c6 15. Ne4 Be7 16. Re1 {just centralising the pieces} f6 17. Nf3 {most humans would be content just to have forced another weakness on the K side; Engines like to exploit it immediately} (17. Nxg6 $1 {Komodo10; often when up in material, one can return some of it for a clear advantage elsewhere} hxg6 18. Qg4 Kg7 (18... Kf7 19. Nd6+ Bxd6 20. Qxg6+ Kf8 21. Qh6+ Kg8 22. Bh7+ Kf7 23. Qg6+ Kf8 24. Qg8+ Ke7 25. Qg7#) 19. Nxf6 Bxf6 20. Qxg6+ Kf8 21. c4 Nb6 22. Bd6+ Re7 23. Qxf6+ Ke8 24. Bg6+ Kd7 25. Bf7 Qf8 26. Bxe6+ Rxe6 27. Qxe6+ Kd8 28. Be7+ Ke8 29. Qg6+ Qf7 30. Bf6+ Be6 31. Rxe6+ Kf8 32. Qh6+ Kg8 33. Qh8# {Komodo10; most humans would play this last line more simply, but the Engine easily calculates mates}) 17... Rf8 18. c4 {drives Bl's best piece away} (18. h4 {further softens up the K side }) 18... Nb6 19. Bf4 Rf7 20. Be3 Nd7 21. Qc2 (21. c5) 21... Qf8 22. Nc3 { just reorganising things, no rush} (22. c5 {Komodo19}) 22... Bb4 23. a3 Be7 24. d5 {breaking open the middle} (24. Rad1 {brings the last Wh piece into the game }) 24... cxd5 25. cxd5 e5 26. d6 (26. Ne4 {Komodo10}) 26... Bxd6 27. Bc4 { transforming the piece into a R ahead} b5 28. Bxf7+ Qxf7 29. Rad1 Qf8 30. Qd3 Bc7 31. Qd5+ {and picking up another R. A winning game still has to be won.} 1-0

Friday, 10 March 2017

The Cardigan Season

There is a time in almost every chess season when one or other of the Aber teams seem to be playing Cardigan almost constantly (though, to be fair, this was truer in the days when Cardigan also fielded two teams). That time has now arrived, and on Tuesday 28 February, it was the B team's turn to host the League Champions, the first time we have played them at our new venue of the Brynamlwg Tavern. On top board, Adam Robinson could never quite match Howard Williams's piece activity in a constantly changing ending, and by the time it got down to opposite-coloured bishops the two-pawn deficit was enough to ensure his defeat. Julie van Kemenade, in her first match for some time, played an ingenious exchange sac against Iolo Jones, whose defence was ingenious enough to cope with it. Julie might have had a draw, but lost while trying for more. My game against Tony Haigh was a French Exchange that never looked like being other than a draw, a complete contrast to the game on Board 4, where James Corrigan played the wild Danish Gambit against Awne Osinga, and eventually got the attack he was seeking, winning a piece with more material to follow. The result was 2½-1½ to Cardigan.

[Event "Dyfed League:AberystwythB-Cardigan"] [Site "?"] [Date "2017.02.28"] [Round "?"] [White "Williams, AH."] [Black "Robinson, Adam"] [Result "1-0"] [ECO "B08"] [WhiteElo "2342"] [BlackElo "1768"] [Annotator "Rudy"] [PlyCount "86"] [EventDate "2017.03.01"] 1. Nf3 g6 2. e4 d6 3. d4 Bg7 4. Nc3 Nf6 5. Be2 O-O 6. O-O Nbd7 (6... c6 {main}) 7. e5 (7. h3 {main}) 7... dxe5 {allows a dangerous pawn thrust} (7... Ne8 {main }) 8. dxe5 Ng4 9. e6 {Wh scores 82% with this ( a similar line can occur in a King's Indian)} Nde5 (9... fxe6 10. Ng5 $18) 10. h3 {uncommon} (10. exf7+ Nxf7 11. Bc4 (11. Qxd8 Rxd8 12. Bc4 {also scores highly}) 11... Qxd1 12. Rxd1 { scores 95% for Wh}) 10... Nxf3+ (10... Qxd1 11. Rxd1 Nxf3+ 12. Bxf3 Ne5 (12... Bxc3 13. bxc3 Nf6 14. exf7+ Kxf7 15. Rb1 {Anbuhl-Windt, Hamburg U18 1978,1-0}) (12... Nf6 13. Nb5 Ne8 14. Rd8 a6 15. Rxe8 axb5 16. Rxe7 c6 17. exf7+ Rxf7 18. Re8+ Rf8 19. Rxf8+ Kxf8 20. c3 {Blatny-Porter, World op Philadelphia 1995,1-0}) 13. exf7+ Nxf7 14. Nd5 Ne5 15. Be2 {Vidal Melendez-Nigro Monasterios, Falcon Garcia mem 2014,1-0}) 11. Bxf3 Ne5 12. exf7+ Nxf7 (12... Kh8 13. Qxd8 (13. Bd5) 13... Nxf3+ 14. gxf3 Rxd8 15. Re1 $14 {Khazhipov-Protasov, Cheliabinsk ch 2010, 0-1}) 13. Qxd8 Rxd8 14. Re1 (14. Nd5 Rd7 15. Nf4 Rd6 16. Nd3 Rb8 17. Re1 e5 18. Nc5 $14 {Komodo10}) 14... Bxc3 (14... c6 $11 {Komodo10} 15. Rxe7 (15. g4 Ne5 16. Be2 Be6 $11) 15... Be5 16. Be3 Bf6 17. Re4 Bf5 18. Rb4 Nd6 19. Rd1 Bxc2 20. Rd2 Bf5 21. Bf4 a5 22. Rb6 Nc4 23. Rxd8+ Rxd8 24. Rxb7 Nxb2 25. Rxb2 Bxc3 $14) 15. bxc3 e5 16. Be3 $14 c6 17. Rab1 Nd6 18. Bc5 Nb5 (18... e4 19. Bxe4 Nxe4 20. Rxe4 b6 21. Be7 Bf5 22. Re2 Re8 23. Rbe1 Kf7 24. g4 Bxc2 25. Bg5 Rxe2 26. Rxe2 h6 27. Re7+ Kf8 28. Bf6 a5 29. Kh2 $14 {Komodo10, lots of humans would be quite happy with Wh's position( though Bl can also get some R activity)}) 19. Rxe5 $16 Nxc3 20. Rbe1 Bf5 (20... Nd5 $5 {Rudy} 21. c4 $1 $18 {Komodo10} Nb6 22. Re8+ Rxe8 23. Rxe8+ Kf7 24. Re7+ Kf6 (24... Kg8 25. Bd4 $18) 25. Rxh7 $18) 21. g4 (21. Re7 b6 22. Ba3 Nd5 23. Rb7 Re8 24. Rxe8+ Rxe8 25. c4 Nc3 26. Bxc6 Rc8 27. Bf3 Rxc4 28. Bb2 Be4 29. Bxe4 Nxe4 30. Rg7+ Kf8 31. Rxa7 $16 {Komodo10} ) 21... Bd7 (21... Bxc2 $1 {looks fatal, but Komodo8.1 & 10 suggest its only slight advantage to Wh} 22. Re7 (22. Rc1 Rd3 $1 23. Bg2 (23. Kg2 Bd1 $1 24. Re3 Bxf3+ 25. Kxf3 Rxe3+ 26. fxe3 Nd5 $15) 23... Rd1+ 24. Rxd1 Bxd1 25. Re7 b6 26. Be3 Nd5 27. Bxd5+ cxd5 28. g5 Bc2 $11) 22... b6 23. Rc1 Rd3 24. Rxc2 Rxf3 25. Bd4 Nb5 (25... Nd5 26. Rg7+ Kf8 27. Rxh7 Rd8 28. Rxc6 Ne7 29. Rf6+ Rxf6 30. Bxf6 Rd1+ 31. Kg2 Nd5 32. Be5 a5 33. Kf3 $16) 26. Be5 Rf7 27. Rxf7 Kxf7 28. Rxc6 Re8 29. f4 g5 $11 {Komodo10}) 22. Re7 $18 Re8 (22... b6 23. Bd6 Re8 24. R1e3 Rxe7 25. Rxe7 Be8 26. Be5 Nxa2 27. Rg7+ Kf8 28. Rxh7 $18) 23. R1e3 (23. Bd4 $1 $18 {both Komodos} Na4 (23... Nxa2 24. Rg7+ Kf8 25. Ra1 Rad8 26. Rxh7 Be6 27. Bxa7 $18) 24. R1e4 Rxe7 25. Rxe7 Be8 26. Rxb7 $18 {Komodo10}) 23... Rxe7 24. Rxe7 Rd8 25. Bxa7 (25. Kg2 $18 {both Komodos}) 25... Bc8 (25... Rf8 26. Rxd7 Rxf3 27. Rxb7 Nxa2 28. Be3 Nc3 29. Kg2 Rf7 30. Rb3 (30. Rxf7 $16 { but human technique should wins this comfortably}) 30... Nd5 31. Bh6 Rc7 32. c4 $16) 26. Kg2 Nxa2 27. Be2 (27. Bb6 Rf8 28. Bc5 $18 {both Engines}) 27... b5 28. Bf3 (28. Bb6 Rf8 (28... Rd7 29. Re8+ Kf7 30. Rxc8) 29. Bf3 Rf7 30. Re8+ Rf8 31. Rxf8+ Kxf8 32. Bxc6 $18 {Komodo10}) 28... Nb4 (28... Rd7 29. Re8+ (29. Rxd7 Bxd7 $14) 29... Kf7 30. Rxc8 Rxa7 31. Bxc6 b4 32. Bd5+ Ke7 33. Bb3 Nc1 34. Rb8 Nxb3 35. cxb3 Ke6 36. Rxb4 {again, Komodo10 only rates as definite plus for Wh. looks quite an easy win.}) 29. c3 Nd5 30. Bxd5+ cxd5 31. Bd4 Kf8 32. Rxh7 $18 Be6 33. f4 (33. Rb7 Bd7 34. Kg3 $18 {Komodo10; infiltrating with the K}) 33... Bf7 34. f5 (34. h4) 34... gxf5 35. gxf5 Ra8 36. f6 Rc8 37. Kg3 (37. Kf3 Rc4 38. Ke3 {Komodo10}) 37... Rc4 38. Be5 Ke8 (38... b4 39. cxb4 Ke8 40. Bd6 $18) ( 38... d4 $1 {Komodos} 39. cxd4 b4 40. Bd6+ Ke8 41. Rh8+ Kd7 42. Be5 b3 43. Rb8 Rc3+ 44. Kg4 Be6+ 45. Kg5 Rxh3 46. Rb6 Bf7 47. d5 Rh5+ 48. Kf4 Rh4+ 49. Kf5 Rh5+ 50. Ke4 Rh4+ 51. Ke3 b2 {and Bl is still fighting, as Wh's best looks likely to be a drawn R& B vs R ending} 52. Rd6+ Kc7 53. Re6+ Kd7 54. Re7+ Kc8 55. Bxb2 Bxd5) 39. Rh8+ Kd7 40. Rb8 Ke6 41. Bd4 b4 42. Rxb4 Rxb4 43. cxb4 Kf5 { the passed b pawn is too much} 1-0 [Event "Dyfed League: AberystwythB-Cardigan"] [Site "?"] [Date "2017.02.28"] [Round "?"] [White "Van Kemenade, J."] [Black "Jones, IC."] [Result "0-1"] [ECO "C00"] [WhiteElo "1743"] [BlackElo "2219"] [Annotator "Rudy"] [PlyCount "86"] [EventDate "2017.03.01"] 1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. d3 Be7 5. Nbd2 O-O 6. O-O c5 7. e4 Nc6 8. e5 ( 8. Re1 {seems more popular amongst the super GMs ( waiting for b5 it seems)}) 8... Nd7 9. Re1 Qc7 10. Qe2 Nb4 (10... b5 {main}) 11. Nf1 d4 {gains d5 but cedes e4} (11... b6 12. c3 Nc6 13. h4 {more frequent}) 12. h4 {main} (12. a3 Nd5 13. h4) 12... Rb8 (12... Nd5 {main, eg} 13. N1h2 b6 14. Ng5 Bxg5 15. hxg5 Re8 16. Bf4 Bb7 17. Qh5 Nf8 18. Ng4 {Kabulov-Kornilov, Saratov Aratovsky mem 2006,1-0}) 13. N1h2 b6 {Bl is digging in rather than go for Q side expansion} ( 13... b5 14. Bf4 Bb7 15. Ng4 Nd5 16. Bd2 Rfc8 17. h5 {Tome Vasquez-Aguado Solana, Madrid San Viator op 2015,1-0}) 14. h5 (14. a3 Nc6 15. Bf4 b5 16. Ng5 Bxg5 17. hxg5 Ne7 18. Qh5 Bb7 19. Ng4 Ng6 20. Nf6+ $16 {Ruge-Ramirez, Bogota McGregor op 2011,1-0}) (14. Ng4 Bb7 15. Bg5 Bxg5 16. hxg5 $11 {Komodo10}) 14... Bb7 (14... h6 15. c3 dxc3 16. bxc3 Nd5 17. c4 Nb4 18. Bb2 $11 {Komodo10}) 15. Ng4 (15. h6 g6 16. Bg5 $14 {Komodo10}) (15. a3 Nd5 16. h6 $14 {Fritz13}) 15... Rfe8 16. Bf4 (16. h6 g6 17. c3 $14 {both Engines}) (16. Bg5 $2 Bxf3 $19) 16... Nd5 17. Bg5 (17. Bd2 h6 $11 {Komodo10}) (17. h6 Nxf4 18. gxf4 f5 19. exf6 Bxf6 20. Qd2 Nf8 21. Nfe5 Bxe5 22. fxe5 Re7 $15 {Komodo10}) 17... Bxg5 18. Nxg5 h6 19. Nf3 (19. Bxd5 Bxd5 20. Ne4 b5 (20... Nxe5 21. Nef6+ $16) 21. Qd2 Bxe4 22. Rxe4 Kh7 23. Rae1 $11 {Komodo10}) 19... Ne7 {Komodo10} (19... b5 {Fritz13}) 20. Nh4 (20. Nd2 $5) 20... Nf5 (20... Bxg2 21. Kxg2 b5 $15 {Komodo10}) 21. Qd2 (21. Bxb7 Qxb7 22. Nf3 b5 23. Nd2 $11 {Komodo10}) 21... Nxh4 22. gxh4 {Wh is planning on using the g file to attack} Bxg2 23. Kxg2 Qc6+ 24. Re4 Kh7 (24... Kf8 {both Engines} 25. Rg1 b5 26. Kh3 Qd5 27. Qf4 $11 {Komodo10} Qxa2 28. Nf6 Nxf6 29. exf6 e5 30. fxg7+ Kg8 31. Rxe5 Rxe5 32. Qxe5 Qe6+ 33. Qxe6 fxe6 34. Rg6 $16) 25. Rg1 (25. Qf4 Rf8 26. Rg1 f5 27. exf6 Rbe8 (27... Nxf6 28. Nxf6+ gxf6 29. Kf1 $18) 28. Kf1 Nxf6 29. Ne5 Nxe4 30. Rxg7+ Kxg7 31. Qg4+ Kh8 32. Ng6+ Kh7 33. Nxf8+ Rxf8 34. Qg6+ Kh8 35. Qxh6+ {perpetual; Komodo10}) 25... Rg8 26. Kf1 {Fritz13 ;turns out not to be the best square for the K} (26. Kh2 { Komodo10}) (26. Kh3 $5 {Komodo10}) 26... Rbf8 27. Qe2 $15 {Fritz13} (27. Qf4 $15 {Komodo10}) 27... Qd5 (27... b5 {both Engines; Bl has held the attack so could do with some open lines on the Q side for later}) 28. b3 (28. c4 { both Engines}) 28... Nb8 29. Nh2 (29. Rf4 $5) 29... Nc6 30. Nf3 Ne7 31. Reg4 { releases the pressure ( indirectly) on e6. allowing Bl's next; but given by both Engines} f5 (31... Kh8 32. Qe4 Qxe4 33. Rxe4 g6 34. hxg6 fxg6 35. Nd2 Nd5 $17 {Komodo10}) (31... Qb7 32. Nd2 Nd5 {Fritz13} 33. Ne4 Qc7 34. Nd6 Kh8 35. R4g3 f6 36. exf6 Rxf6 37. Qe5 $15 {Komodo10}) 32. Rg6 $5 {an interesting try ( which both Engines refuse to touch)} (32. exf6 {both Engines seen as best}) ( 32. R4g2 {and the e & h5 pawns feel the pressure, though the immediate attempt does'nt appear to work} f4 (32... Qc6 33. Rg6 Kh8 $17 {Komodo10}) 33. Qe4+ $1 Rf5 34. Qxd5 exd5 35. Rg4 Rxh5 36. Rxf4 Ng6 37. Rf7 Rf8 38. Rxf8 Nxf8 39. Kg2 Kg6 40. Kh3+ (40. b4 $11) 40... Kf7 41. Kg4 g6 42. b4 $11 {opening a second front while the Bl R is otherwise engaged}) 32... Nxg6 33. hxg6+ Kh8 34. Ng5 f4 {the only move, else Bl is in Zugzwang} 35. Qh5 $11 (35. Qe4 $1 $11 { both Engines} Qd7 (35... Qxe4 36. dxe4 f3 37. Rg3 Rf4 38. Nf7+ Rxf7 39. gxf7 Rf8 40. Rxf3 $16) 36. Rg4 b5 37. Nf7+ Rxf7 38. gxf7 Qxf7 39. Rxf4 Qh5 40. f3 $11 {Komodo10}) 35... Qd7 (35... a6 36. Nf7+ Rxf7 37. gxf7 Rf8 38. Rg6 Rxf7 39. Rxh6+ gxh6 40. Qxf7 Qxe5 41. Qf8+ Kh7 42. Qf7+ {perpetual} Qg7 43. Qxe6 $16) 36. Ne4 (36. Qg4 $14 {both engines} Qe8 (36... Rf5 $2 {move looked at in pm analysis, but Komodo10 just takes it} 37. Qxf5 $1 Rb8 (37... exf5 38. Nf7+ Qxf7 39. gxf7 Rf8 40. e6 $18 {and the centre pawns break through})) (36... Qe7 37. f3 Qd7 38. Kf2 {and Bl will be running out of moves}) 37. Nxe6 Qe7 38. Nxf8 Rxf8 39. Qh5 $14 {and Wh is a pawn up}) 36... Rf5 37. Rg5 $11 Rgf8 38. Nd6 Kg8 {both Engines & Bl is best returning the exchange} 39. Ne4 (39. Nxf5 $11 exf5 ( 39... Rxf5 $2 40. Rxf5 exf5 41. Qf3 $1 $18 Qe8 (41... Qd8 42. Qb7 Qe8 43. Qd5+) 42. Qd5+ Kf8 43. Qd6+ Qe7 (43... Kg8 44. e6 $18) 44. Qb8+ Qe8 45. Qxe8+ Kxe8 46. Kg2 {and Wh wins the pawn ending, capturing f4}) 40. Ke2 Qe6 41. Rg1 Qxe5+ 42. Kd2 c4 (42... Re8 43. Qf3 $11) 43. bxc4 Qa5+ 44. Kc1 Qxa2 45. Re1 $11 { Wh has active R}) (39. Qf3 $1 {both Engines, & Bl is safest returning the exchange} Rxe5 (39... hxg5 {leads to some fantastic variations} 40. Qh5 Re8 { ( it seems all other R moves lose)} 41. Qh7+ Kf8 42. Nb7 $1 {taking the N will lose the Q} Rb8 43. Qh8+ Ke7 44. Qxg7+ Ke8 45. Qh8+ Rf8 46. g7 Qe7 47. gxf8=Q+ Qxf8 48. Qh7 Rxb7 (48... Qe7 49. Qg8+ Qf8 50. Qxe6+ Qe7 51. Qg8+ Qf8 52. Nd6+ Kd7 53. Qd5 $18) 49. Qxb7 Qf5 50. hxg5 Qg4 {and both sides have a perpetual; Komodo10}) (39... Rxg5 40. hxg5 Qe7 41. Qh3 f3 42. gxh6 gxh6 43. Nf7 Rxf7 44. gxf7+ Qxf7 45. Qxh6 $11) 40. Rxe5 Qxd6 41. Qe4 Rf6 42. Qa8+ Rf8 43. Qe4 $11 { Komodo10}) (39. Qg4 {is also a draw according to Komodo10} f3 40. Rxf5 exf5 41. Qf4 Qe6 42. h5 a6 43. Nf7 b5 44. Qxf3 $11 {Komodo10; the R cannot go too far away because Q & N are a powerful attacking force.}) 39... Qd5 $19 {the e pawn will fall} 40. Nf6+ {a last throw, which does,t work because of the positionof the Wh K} R8xf6 41. exf6 Qh1+ $1 {other moves draw} 42. Ke2 (42. Rg1 Qh3+) 42... Rxg5 {and the h pawn is pinned, & the Wh Q has no access to the back rank } 43. f7+ Kf8 0-1 [Event "Dyfed League: AberystwythB-Cardigan"] [Site "?"] [Date "2017.02.28"] [Round "?"] [White "Haigh, A."] [Black "Francis, Matthew"] [Result "1/2-1/2"] [ECO "C01"] [WhiteElo "1903"] [BlackElo "1704"] [Annotator "Rudy"] [PlyCount "53"] [EventDate "2017.03.01"] 1. e4 e6 2. d4 d5 3. exd5 {Wh had a Tarrasch} (3. Nd2 c5 {at the Dyfed Open the weekend before that he didnt't enjoy}) 3... exd5 {the Exchange French has a drawish reputation; though of course the super GMs have been trying it out lately} 4. Nf3 Bd6 5. Bd3 Ne7 6. O-O Bf5 (6... O-O) 7. Re1 Bg6 {not the most frequent, as it may lose a tempo since Bl wants to swap off Wh's best B anyway. However at 22 % Wh does worst of all the 3 moves cited. However , for the move played at this point, none of the players are in the top bracket.} (7... O-O) ( 7... Bxd3) 8. Nc3 (8. Bg5 f6 {provided Bl with 2 wins}) 8... c6 9. Ne5 (9. Bg5 O-O (9... f6 10. Bh4 O-O 11. a3 Nf5 12. Bg3 Nxg3 13. Bxg6 hxg6 14. hxg3 { Kipczak-Kuchyna, IPCA wld ch Wisla 2007,1/2-1/2}) 10. Nh4 Qc7 11. Bxe7 Bxe7 12. Nf5 Bxf5 13. Bxf5 g6 $11 {Kargoll-Borngaesser,FRG ch qual 1986,0-1}) 9... Bxd3 10. Qxd3 f6 11. Nf3 O-O $11 12. Ne2 Na6 (12... Ng6 {prevents Bf4, getting rid of Wh's baddish B}) (12... g5 $5 {Weakens the Bl K side} 13. h4 h6 14. Ng3 Bxg3 15. fxg3 Qd6 16. g4 Nd7 17. b3 $16 {and the B enters via a3;Komodo10}) 13. Bf4 Nc7 14. c3 Qd7 15. Bxd6 Qxd6 16. Ng3 Rfe8 (16... Rae8) 17. Re3 Qd7 18. Rae1 Ng6 19. Qf5 {alternatives also draw} Qxf5 20. Nxf5 Rxe3 (20... Kf8) 21. Rxe3 Kf8 ( 21... Re8 {Rudy; Bl was concerned about an invasion via d6, but Bl is fine} 22. Nd6 Rd8 (22... Rxe3 23. fxe3 b5 $14 {but no signs of Wh entry}) 23. Nxb7 (23. Nf5 Re8) 23... Rb8 24. Nc5 Rxb2 $11 {Komodo10}) 22. Kf1 Rd8 (22... Re8) 23. h4 Rd7 24. g3 Ne7 25. Nxe7 Rxe7 26. Ke2 Ne8 27. Nd2 {(draw?)} 1/2-1/2 [Event "Dyfed League: AberystwythB-Cardigan"] [Site "?"] [Date "2017.02.28"] [Round "?"] [White "Corrigan, James"] [Black "Osinga, A."] [Result "1-0"] [ECO "C21"] [WhiteElo "1449"] [BlackElo "1386"] [Annotator "Rudy"] [PlyCount "73"] [EventDate "2017.03.01"] 1. e4 e5 2. d4 {leading to a Danish Gambit, to battle against Awne's usual safety first approach} exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Nh6 {rare, & scarcely mentioned in the theory books eg Alterman Gambit Guide: White Openings 2010.} 6. Nf3 (6. Nd2 {pm analysis, anticipates the ch & aims at g7}) 6... Bb4+ (6... b6 {occured in 2 of the 5 games with Nh6, but don't quite see the point.} 7. Qe2 Bb4+ 8. Nc3 O-O 9. O-O-O $16 {threatening g4 & h4; given in a footnote in Russian 'Encycopdia Modern Chess Opening 1994:467}) 7. Nc3 { Quite a few games can be found on chesscube & probably more on other Internet play sites. Its certainly been examined by other Chess Engines} (7. Kf1 Bf8 ( 7... O-O 8. Qd4 Qf6 9. Qxf6 gxf6 10. Bxf6 d6 11. Bc3 a5 $15) 8. Nbd2 d6 9. Qb3 Nd7 $15 {Luchetti( 2221)-Collas (2354), FRA ch qual Bescanon 1999,0-1}) 7... O-O 8. O-O $11 {although Bl has several extra pawns, his pices & especially the N on h6, are passive & so unable to help in pushing the pawns forward.} d6 9. h3 (9. Nd5 Bc5 10. Qc1 Ng4 11. h3 {various Cloud Engines}) 9... Nc6 (9... Nd7) 10. Ne2 Qe8 11. Ng3 Be6 {Deep Fritz13} (11... Kh8 $17 {Komodo10}) 12. Bd3 (12. Bd5 $11 {both Engines}) 12... f6 $17 {blunts the b2 B & gives the chance for the return of the h6 N to e5} 13. Nh4 Ne5 $19 {Komodo10} (13... Nf7 $19 { Deep Fritz13}) (13... Kh8 $17 {Komodo10}) 14. Bc2 Bc5 15. Kh1 Rd8 {Bl has mobilised his pices, though they are still in defence positions} (15... b5 16. Bb3 a5 $19 {Komodo10, starting to use the extra pawns as a roller}) 16. f4 Nc4 17. Bc1 (17. Bd4) 17... Ne3 18. Bxe3 Bxe3 19. Qd3 {wh is still angling towards the K} Qc6 (19... Bb6) 20. Rf3 Bc5 21. Nh5 Qd7 $2 (21... Kh8 {Komodo10 secures everything}) 22. Rg3 $18 Rf7 (22... Bf2 {Komodo10 suggests is the best bet} 23. Rxg7+ Qxg7 24. Nxg7 Kxg7 25. Nf3 Bb6 26. g4 $18) 23. f5 {winning a piece} (23. Rxg7+ $1 {Komodo10} Rxg7 (23... Kf8 24. Nxf6 Qc8 25. Rxf7+ Kxf7 26. Nxh7 $18 { as the K is exposed and the Bl pices scatterred}) 24. Nxf6+ Kh8 25. Nxd7 Bxd7 26. g4 $18) (23. e5 $1 Nf5 24. Rxg7+ Rxg7 25. Nxf6+ Kh8 26. Nxd7 Ng3+ 27. Kh2 Bxd7 28. f5 {is even stronger; Komodo10. " Don't always look at the obvious (re) capture " Topalov;Gibraltar Masterclass 2017.}) 23... Bf2 (23... Bxf5 24. Nxf5 Nxf5 25. exf5 Kh8 26. Nf4 Re7 27. Ne6 Rde8 {al least gets another pawn, but the position doesn't look good for Bl}) 24. fxe6 {the obvious capture, but the other line is still there} (24. Rxg7+ Rxg7 (24... Kf8 25. Qd2 {Deep Fritz13 } (25. Rxh7 {Komodo10} Rxh7 26. Ng6+ Kf7 27. fxe6+ Qxe6 28. Rf1 Rg7 29. Bb3 d5 30. Ngf4 $18 {is mayhem}) 25... Rxg7 26. fxe6 Qe7 27. Qxf2 $18) 25. Nxf6+ Kf8 26. Nxd7+ Bxd7 27. f6 Rg3 28. Nf3 $18 {Komodo10}) 24... Qxe6 25. Bb3 d5 26. Bxd5 Rxd5 27. Qxd5 Qxd5 28. exd5 g6 (28... Bxg3 29. Nxg3 $16 {simpler, & although Bl has a couple of pawns for the piece, they are not advanced enough to be compensation}) 29. Kh2 (29. Rf1 {Rudy; also}) 29... Bxg3+ 30. Nxg3 Rd7 31. Rd1 (31. Ne4 Kf7 32. Rc1 {Komodo10, but why not keep pawns on?}) 31... c6 ( 31... c5 {to mobilise the Q side, but the centre pawn is too strong}) 32. Ne4 Kf7 33. d6 (33. Nc5) 33... b6 34. Nf3 c5 35. g4 a6 36. g5 fxg5 37. Ne5+ 1-0

Monday, 6 March 2017

GM Scalp

Here is a blitz win by Rudy van Kemenade against a German grandmaster, played at Gibraltar recently.He says he had a little help from the GM's IM daughter.

[Event "Pairs Blitz Gibraltar"] [Site "?"] [Date "2017.01.29"] [Round "7"] [White "Van Kemenade- Paehtz, R & E."] [Black "The Fearless"] [Result "1-0"] [ECO "B07"] [Annotator "Rudy"] [PlyCount "43"] [EventDate "2017.01.30"] {Labyrinth in a Dark wood} 1. e4 {Rudy AGM 1955} d6 {Thomas Paehtz GM 2365 & Milan Kundic FM 2061} 2. d4 {Elisabeth Paehtz IM 2468} Nf6 3. Nc3 e5 4. Nge2 ( 4. Nf3 {played in a previous game}) 4... Nc6 5. Be3 (5. f3) (5. h3) 5... exd4 ( 5... Be7) (5... g6) 6. Nxd4 (6. Bxd4 Nxd4 7. Nxd4 Be7 {0-2}) 6... Ng4 (6... Be7 ) (6... Bd7) (6... g6) 7. Bf4 Qf6 8. Nde2 Be6 9. f3 (9. Qd2 g5 10. h3 gxf4 11. hxg4 Bxg4 12. Qxf4 Qg6 $11 {Zakrzewski-Urban, Poznan op 2016,1/2-1/2}) 9... g5 (9... Nge5) 10. Bd2 Nge5 11. Nd5 Bxd5 12. exd5 Ne7 13. Nc3 g4 (13... Bg7 14. Bb5+ c6 15. dxc6 bxc6 16. Ba6 d5 17. O-O $11 {Komodo10}) 14. f4 N5g6 (14... Nd7 ) 15. Qxg4 (15. Ne4 $18 {Komodo10} Qf5 (15... Qd4 16. Bb5+ Kd8 17. Nxd6 $18) ( 15... Qxb2 16. Rb1 Qg7 17. Rxb7 $18) 16. Bd3 Kd8 17. Ng5 Qxd5 18. Be4 Qc4 19. b3 $18) 15... h5 (15... Qh4+ 16. Qxh4 Nxh4 17. O-O-O $16) 16. Bb5+ {Elisabeth} c6 17. Ne4 $1 $18 {Rudy} (17. dxc6 bxc6 18. Qf3 $18 {Elisabeth idea}) 17... Qxb2 (17... Kd8 18. dxc6 Nxc6 19. Nxf6 hxg4 20. O-O-O $18) 18. Nxd6+ Kd8 19. Nxf7+ {Rudy played} (19. Nxb7+ {Elisabeth} Kc7 20. Ba5+ {analysis with Julie} ( 20. d6+ Kxb7 21. Qd7+ Kb6 22. Be3+ Kxb5 23. Qb7+ Kc4 24. Qxb2 {Komodo10}) 20... Kb8 21. Qd7 Nxd5 22. Qe8+ {Komodo10} (22. Nd6 Qxa1+ {Komodo10} (22... Bxd6 { Julie & Rudy} 23. Qxd6+ Kb7 24. Qxc6+ Kb8 25. Qd6+ Kc8 26. Ba6+ Qb7 27. Qc6+ Nc7 28. Qxc7#) 23. Ke2 Ndxf4+ 24. Kd2 Qd4+ 25. Bd3 Qe3+ 26. Kxe3 Nd5+ 27. Kd4 Bxd6 28. Rb1+ Nb6 29. Bxb6 Be5+ 30. Kc4 axb6 31. Rxb6#) 22... Kxb7 23. Qxc6+ Kb8 24. Qe8+ Kb7 25. Qd7+ Kb8 26. Qd8+ Kb7 27. Qxd5+ Kb8 28. Qd8+ Kb7 29. Qc7#) 19... Kc7 (19... Ke8 20. Nd6+ Kd8 21. Nxb7+ Kc7 (21... Ke8 22. Nd6+ Kd8 23. Ba5#) 22. Ba5+ {mating}) 20. Ba5+ Kb8 (20... b6 21. d6+ Kb8 22. Qd7 {mating}) 21. Qd7 Qxa1+ 22. Ke2 $1 {Elisabeth} 1-0

Tuesday, 28 February 2017

Theory Wars

Aberystwyth fielded a strong B team against the formidable Dyfed League champions Cardigan at the Emlyn Cafe, Tanygroes, on Wednesday 15th February. Playing White on top board, Robbie Wright took on Howard Williams in a sharp theoretical line of the Sicilian, a calculated risk that unfortunately ended in an early mate by Black. Adam Robinson, too, chose a very theoretical opening against Iolo Jones, but his King's Indian led to a blocked game rather than the usual fireworks. Iolo uncharacteristically missed a win in the manoeuvring, and eventually had to settle for a draw. Against Tony Haigh, I found myself facing a line of the Leningrad Dutch that I played myself in a match a few years ago. I couldn't remember the theory, but got as far as move 14 before misplaying it and getting an awful position, from which there was no escape. On Board 4, Conor McEwan's Steinitz Defence against Howard Leah's Ruy Lopez produced a cramped but playable position. Black got a bit of counterplay as White charged down the kingside with his pawns, but it wasn't enough. The match ended 3½-½ to Cardigan.

[Event "Dyfed League: Cardigan-AberystwythB"] [Site "?"] [Date "2017.02.13"] [Round "?"] [White "Wright, Robert"] [Black "Williams, AH."] [Result "0-1"] [ECO "B33"] [WhiteElo "1876"] [BlackElo "2342"] [Annotator "Rudy"] [PlyCount "40"] [EventDate "2017.02.15"] 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 (6. Bg5 {main}) 6... e5 (6... Ng4 {main}) 7. Ndb5 (7. Nb3) 7... a6 8. Na3 b5 9. Nd5 Nxd5 (9... Nxe4 $2 10. Bb6) 10. exd5 Ne7 11. c4 {a very sharp line; sometimes the best tactic against a stronger player is to engage in tactics} Nf5 12. cxb5 (12. Bd2 {main, looks advisable, to the weak pawn structure; though the text appears quite playable}) 12... Nxe3 13. fxe3 Qh4+ 14. g3 (14. Kd2 {also played, when the Engines give} Be7 15. Qb3 O-O $15 {though Behnk-Enneper, Regionnalliga Nord1991 1-0}) 14... Qe4 15. Qc2 Qxe3+ (15... Qxc2 16. Nxc2 Bf5 17. Nb4 $16 { Rog-Chuprova, Liptovsky Mikulas Cup tm U20 2013,0-1}) 16. Be2 Bd7 $11 (16... Bg4 17. bxa6 Rxa6 18. Nc4 Qxe2+ 19. Qxe2 Bxe2 20. Kxe2 $16 { Karaklajic-Szilagyi, Bad Libenstein 1963,1-0}) (16... Qc5 17. Qxc5 dxc5 18. Nc4 (18. O-O) 18... axb5 19. Nb6 Rb8 20. Nxc8 Rxc8 21. Bxb5+ Kd8 22. O-O $14 { Gladstone-Sapozhnikov, Toronto PWC op 2009,0-1}) 17. bxa6 (17. Qd2 Qxd2+ 18. Kxd2 axb5 (18... g6 19. bxa6 Bh6+ 20. Kc3 Ke7 21. b4 $11 {Hertzog-Bressers, DAN ch int U20 1979,1-0}) 19. Nxb5 (19. Bxb5 {Komodo10}) 19... Ke7 20. Rhc1 g6 21. Rc7 Bh6+ 22. Kc2 Rhb8 $17 {Karaklajic-Denker, Hoogovens-B 1972, 1/2-1/2}) 17... Be7 18. Qc7 {too ambitious} (18. Qd2 $11 Qa7 (18... Bg5) (18... Qxd2+ 19. Kxd2 Bg5+ 20. Ke1 Ke7 (20... Bc8 21. Nc4 Ke7 22. Na5 Bxa6 23. Nc6+ Kd7 24. Bxa6 Rxa6 25. a4 $14 {Kotkov-Taimanov, RSFSR ch Perm 1960,1-0}) 21. b4 Rhc8 22. Bc4 Be3 $11 {Costa-Ayas Fernandez, Sitges op 2002,1-0}) 19. Bb5 (19. Nb5 $11) (19. Nc4 $11) 19... O-O 20. Bxd7 Qxd7 21. O-O Rxa6 $15 {Hubschmid-Malakhatko, Winterthur op 2002,0-1}) 18... Bd8 (18... Rc8 $19 {Komodo10} 19. Qb7 Bd8 20. Qb4 O-O 21. Qd2 Qe4 22. O-O Bb6+ $19 {Komodo10}) 19. Qb7 (19. Qc3 Qe4 20. Rf1 O-O $17 {Komodo10}) 19... Ba5+ 20. Kf1 (20. b4 {is more complicated} Ke7 (20... Qc3+ 21. Kf2 Bxb4 22. Qxa8+ Ke7 23. Qb7 Rb8 24. Qxb8 Qd4+ 25. Kg2 Qxd5+ 26. Kf2 Bc5+ 27. Ke1 Qxh1+ 28. Kd2 Qxa1 29. Nc2 Qxa2 $19 {Komodo10}) (20... Bb6 $1 { Komodo10} 21. Rd1 (21. Qxa8+ Ke7 22. Qb7 (22. Qxh8 Qc3+ 23. Kd1 Ba4+ 24. Nc2 Bxc2+ 25. Kc1 Be3#) 22... Rc8 23. Qxc8 (23. Rb1 Rc1+ 24. Rxc1 Qxc1+ 25. Bd1 Qc3+ 26. Kf1 Qe3 27. Qxd7+ Kxd7 28. Kg2 Qxa3 $19) 23... Bxc8 24. Nc2) 21... Qf2+ 22. Kd2 Be3+ 23. Kc3 Bd4+ 24. Rxd4 Qxd4+ 25. Kc2 Rc8+ 26. Bc4 Qe4+ 27. Kb3 Qf3+ 28. Kb2 Qxh1 $19) 21. bxa5 Qc3+ 22. Kf2 Qd4+ 23. Kf3 Rab8 24. Rad1 Qc5 25. Nc4 Rxb7 26. axb7 Rb8 27. a6 Bb5 $19 {Komodo10}) 20... Bh3# 0-1 [Event "DyfedLeague: Cardigan-AberystwythB"] [Site "?"] [Date "2017.02.13"] [Round "?"] [White "Jones, IC."] [Black "Robinson, Adam"] [Result "1/2-1/2"] [ECO "E67"] [WhiteElo "2219"] [BlackElo "1768"] [Annotator "Rudy"] [PlyCount "134"] [EventDate "2017.02.15"] 1. c4 g6 2. d4 Nf6 (2... Bg7 3. Nc3 (3. Nf3 d6 4. Nc3 Nd7 5. e4 e5 6. dxe5 dxe5 7. Bg5 f6 8. Be3 Nh6 {I Jones- J Van Kemenade, Dyfed League 2009,1-0}) 3... d6 4. e4 Nd7 5. Be2 e5 6. d5 Ngf6 7. Bg5 {I Jones-J Van Kemenade, Dyfed League 2008,1-0}) 3. Nc3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nf3 Nbd7 7. O-O c6 (7... e5) 8. Qc2 (8. e4) (8. h3) 8... Re8 (8... e5) 9. Rd1 e5 10. dxe5 (10. e4 {main, keeps more tension on}) 10... dxe5 11. Ng5 {main, but seems to spend several tempi, moving a N 5 times to take an unmoved B; and thus falling behind in development. Even getting the 2 Bs doesn't seem worth the effort} (11. e4) (11. b3) 11... Qe7 (11... Qc7 {alternative}) 12. Nge4 Nc5 (12... Nxe4 {also played, but the text scores 65% for Bl}) 13. Nd6 (13. Bg5 Bf5 {delivered 50% over 5 games}) (13. Nxc5 Qxc5 14. Qb3 {Iolo & Fritz13 later comment- Be3 is a threat = 0.42 to Wh. Komodo10 gives the position as level after either} h6 {or} (14... Qe7 15. Bg5 Qc7 $11) 15. Be3 Qe7 $11) 13... Rd8 14. Nxc8 Raxc8 (14... Rxd1+ 15. Nxd1 Rxc8 16. Bd2 Nfd7 17. Bc3 f5 $11 {Euwe-Geller, Zurich cand 1953,0-1}) 15. b3 $146 (15. Bg5 Ne6 16. Bxf6 Bxf6 17. e3 Bg7 $15 {Giertz-Gallagher, Zug 1991, 0-1}) (15. Be3 Bf8 16. Bh3 Rxd1+ 17. Rxd1 Rd8 18. Rxd8 Qxd8 19. b4 Ncd7 20. a3 a5 21. Qa4 $14 {Grivas-Apicella, Cannes op 1995,1/2-1/2}) (15. Bd2 Ne6 16. Qa4 a6 {Urban-Czarnota, POl ch Poznan, 2005, draw agreed}) 15... Nfd7 (15... Ne6 { Rudy} 16. Bb2 Nd7 17. e3 f5 $11) (15... Rxd1+ {before Wh can take back with the R; Komodo10} 16. Qxd1 Ne6 17. Bb2 (17. e3 Rd8 18. Qc2 e4 19. Bb2 Ng5 $15 { Komodo10}) 17... Rd8 18. Qc2 Nd4 19. Qc1 e4 20. Rb1 Ne8 21. Bxe4 Nxe2+ 22. Nxe2 Qxe4 23. Bxg7 Nxg7 24. Rb2 Qd3 25. Nf4 Qd6 26. Re2 $11 {Komodo10}) 16. Ba3 Qe8 {the Q looks slightly misplaced here, but bl squares are not quite right here either} (16... Qg5 17. h4 Qh5 18. Bf3 Qf5 19. Qxf5 gxf5 20. Bg2 $16) (16... Qf6 17. Bh3 $16) ({Komodo10} 16... e4 17. Rab1 (17. Nxe4 Bxa1 18. Rxa1 f5 19. Nxc5 Nxc5 20. Qc3 h6 21. Re1 b6 22. e4 $11 {Komodo10}) 17... f5 18. Na4 b6 19. Nxc5 Nxc5 20. Rxd8+ Rxd8 21. Rd1 $11) 17. Rab1 (17. Bh3 Rb8 (17... f5 18. e4 $16) 18. Rab1 Ne6 $11 {Komodo10}) 17... f5 18. b4 (18. e4 f4 19. Bh3 Ne6 20. Bd6 Bf8 21. c5 fxg3 22. hxg3 (22. fxg3 Ng5 $15) 22... Ng5 23. Bg4 h5 24. Qc1 Bh6 25. f4 exf4 26. gxf4 hxg4 27. fxg5 Bg7 $15 {Komodo10}) 18... Ne6 19. e3 {a little passive} (19. e4 Nd4 20. Qd3 $11 {Komodo10}) (19. b5 e4 20. bxc6 bxc6 21. e3 Ne5 22. Rb7 Rc7 23. Rxc7 Nxc7 24. Bd6 Ne6 25. c5 Nf7 26. Qb3 Bf8 $11 {Komodo10} ) 19... e4 $15 {cuts off the g2 B} 20. Bb2 {gives up the 2 Bs, because otherwise Bl's B will be too powerful} Ne5 21. Ne2 Rxd1+ {Bl was aiming at a loose b pawn, but this temporarily cedes control of the d file} (21... Qe7 { Rudy, to have the Q as a replacement fianchetto}) 22. Rxd1 Nd3 (22... Rd8 { Fritz13, Komodo8 & Komodo10}) 23. Bxg7 Kxg7 24. Nc1 (24. g4 $14 {Komodo10}) 24... Nxc1 {Fritz13} (24... Ne5 {Komodo10} 25. Qc3 Ng5 26. Ne2 Kg8 27. c5 Rd8 28. Qb3+ Kg7 29. Nd4 Rd7 $11) 25. Qxc1 Rd8 $11 26. h4 b6 (26... g5 $5 {Rudy, trying to open up the Wh K; looks to be too loosening of the Bl K position} 27. Qc3+ Kg6 28. Rxd8 Qxd8 29. Qe5 Qf6 30. h5+ Kg7 31. Qb8 Qe7 32. g4 $16) (26... h6 $5 {preparing it} 27. Qc3+ Kf7 28. Rxd8 Qxd8 29. c5 Qf6 30. Qa3 a6 31. Bf1 g5 32. hxg5 hxg5 33. Bc4 f4 34. exf4 gxf4 35. Qb3 Qa1+ 36. Kg2 Kf6 37. Bxe6 f3+ 38. Kh3 (38. Kh2 Qf1 39. Bh3 Qxf2+ 40. Kh1 Qe1+ 41. Kh2 Qf2+ $11) 38... Qh1+ 39. Kg4 Qc1 40. Bf7 Qg5+ 41. Kh3 Qh6+ 42. Kg4 Qg5+ $11 {Komodo10}) (26... Rxd1+ 27. Qxd1 Qd8 {all 3 Engines} 28. Qb3 g5 29. hxg5 Nxg5 30. Qb2+ Kg6 31. Qe5 Qd2 32. Qe8+ Kg7 33. Qe7+ Kg6 34. Qe8+ $11 {Komodo10}) (26... c5 27. Rd5 cxb4 28. Qb2+ Kf7 29. Qxb4 Qe7 30. Qd2 b6 31. Bf1 $14 {Komodo10}) 27. Qc3+ Kf7 28. Rxd8 Qxd8 29. Bf1 {Fritz13} (29. c5 bxc5 30. bxc5 Qf6 31. Qa3 Qe7 32. Bf1 Qxc5 33. Qb3 Kf6 34. Bc4 $11 {Komodo10; judging an active B to be worth a pawn}) 29... c5 30. b5 {Fritz13, but does seal in the B} (30. a3 {Komodo10}) 30... Qf6 31. Qa3 Qe7 32. Be2 {a late middle game has arisen where the B has no scope; the N is perhaps a little better as it could choose to go to a square where the B would probably be forced to swap it off, though Bl could choose the moment to do so. Perhaps Bl can try to engineer h6, g5, f4, & f3 & get the N onto f3; but this doent look to be a forced win, even if the Q could come in.On the other hand, Wh has really only a Q to play with; and a Q on her own can never hope to cause any damage unless there are are loose pawns around. So a draw could have been agreed here.} Kg8 33. Qc3 Nd8 34. f3 {hoping to unbalance the position} Nf7 (34... exf3 35. Bxf3 Nf7 36. Bd5 h5 {still looks drawn, but Bl is best just staying put}) 35. f4 Qd7 (35... h5 {Komodo10; closes everything down}) 36. h5 Qd6 37. hxg6 hxg6 38. Kf2 Nh6 (38... g5 $11 {Rudy & Komodo10}) 39. Ke1 g5 40. Qa3 gxf4 41. gxf4 Qd7 42. Qc3 Qd6 (42... Qg7 {all 3 engines}) 43. a4 Kh7 44. a5 Kg6 45. axb6 axb6 46. Qh8 Qf6 $2 {a blunder , which Iolo fails to take advantage of} (46... Qe6 {keeps everything covered}) 47. Qe8+ $2 (47. Bh5+ $1 {wins the Q}) 47... Kg7 48. Qd7+ Kg6 49. Qd5 Kg7 50. Kf1 Qa1+ 51. Kf2 Qf6 52. Qb7+ Kg6 53. Kg3 Nf7 54. Qc8 Nh6 55. Qe8+ Nf7 56. Qg8+ Kh6 57. Qf8+ Kg6 58. Kf2 Qh4+ 59. Kg2 Qf6 60. Qe8 Kh6 61. Kg1 Kg6 62. Kf2 Qh4+ 63. Kg2 Qf6 64. Qg8+ Kh6 65. Kh3 Nh8 (65... Qg6 {Komodo10}) (65... Qd8 {Fritz13} 66. Qxd8 ( 66. Qxf7 Qh4+ 67. Kg2 Qg3+ 68. Kf1 Qf2+ 69. Kxf2 {stalemate}) 66... Nxd8 $11) 66. Qg3 Nf7 67. Qg8 Nh8 (67... Nh8 68. Bh5 $5 {Iolo} Ng6 (68... Kxh5 $2 69. Qh7+ Qh6 70. Qxf5+ Qg5 71. Qxg5#) 69. Bxg6 Qxg6 (69... Qh4+ 70. Kxh4 {stalemate }) 70. Qh8+ Qh7 71. Qf6+ Qg6 {still drawn}) 1/2-1/2 [Event "Dyfed League: Cardigan-AberystwythB"] [Site "?"] [Date "2017.02.13"] [Round "?"] [White "Francis, Matthew"] [Black "Haigh, A."] [Result "0-1"] [ECO "A89"] [WhiteElo "1704"] [BlackElo "1903"] [Annotator "Rudy"] [PlyCount "64"] [EventDate "2017.02.15"] 1. d4 f5 2. g3 Nf6 3. Bg2 g6 {The Leningrad Dutch, a new addition to Tony's repertoire} 4. Nf3 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 Nc6 {inviting a very sharp line} (7... Qe8) (7... c6 {main variations}) 8. d5 Ne5 (8... Na5 {is another way of playing this line}) 9. Nxe5 dxe5 10. e4 (10. Qb3 Kh8 11. Be3 Ng4 12. Bc5 e4 13. h3 Ne5 {Botto-Van Kemenade, Leeds University-Huddersfield, 1992,1-0}) 10... f4 {an aggressive pawn sac offer} 11. gxf4 {main, Wh is not forced to take here though} (11. b4 {is a major alternative}) 11... exf4 (11... Nh5 { is yet another subvariation}) 12. e5 (12. Bxf4 Nxe4 {regains the pawn & has been considered good for Bl; though several GMs have successfully played this line for Wh in recent years} 13. Qc1 e5 14. Be3 Nd6 15. Bg5 Qe8 16. Nb5 Qf7 17. Nxd6 cxd6 18. c5 $11 {Simutowe-Nakamura, Cherry Hill op 2007, 1-0 one example}) 12... Ng4 13. e6 Ne5 14. f3 $146 {too passive an approach to the threat of f3 & makes the B bad} (14. Re1 $1 {is the correct theoretical response} Nxc4 ( 14... a6 15. Re4 f3 16. Bf1 {Haigh-E White, SW Autumn 2016,1/2-1/2}) 15. Re4 Nd6 16. Rxf4 c6 $11 (16... b6 $11)) 14... Nxc4 $17 15. Qd3 Nd6 16. Ne2 c6 ( 16... Be5 {Komodo10}) 17. Bxf4 (17. Nxf4 Be5 18. Ne2 Nf5 $17) 17... cxd5 (17... Nf5 18. Rad1 cxd5 $19 19. Qxd5 Qxd5 20. Rxd5 Bxe6 21. Rd2 Bxa2 {Komodo10}) 18. Qxd5 Qb6+ 19. Kh1 Nf5 (19... Rf5 20. Qd2 Bxe6 $19) 20. Rfe1 (20. Qe4 Bxe6 21. Ng3 Nxg3+ 22. Bxg3 Bf5 23. Qxe7 Rae8 24. Qh4 Qxb2 $17 {Komodo10}) 20... Bxe6 $19 21. Qe4 Bf7 (21... Rad8) 22. Be5 Bxe5 23. Qxe5 Qf6 (23... Rad8 $19) 24. Qb5 Ne3 $19 25. Qd3 Nxg2 26. Kxg2 Rad8 27. Qe3 Qxb2 (27... Bd5 28. Ng1 Qxb2+) 28. Reb1 Qd2 29. Qxd2 Rxd2 30. Kf2 Bc4 31. Re1 Bxa2 32. Ke3 Rfd8 0-1 [Event "Dyfed League:Cardigan-AberystwythB"] [Site "?"] [Date "2017.02.13"] [Round "?"] [White "Leah, H."] [Black "McEwan, Conor"] [Result "1-0"] [ECO "C78"] [WhiteElo "1518"] [BlackElo "1339"] [Annotator "Rudy"] [PlyCount "73"] [EventDate "2017.02.15"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. c3 Bd7 5. d4 exd4 {giving up the centre cedes Wh a little more freedom of movement than Bl ( as Komodo10 shows to devastating effect in its comments)} (5... Nf6) 6. cxd4 a6 7. Ba4 Nf6 8. O-O Be7 (8... Nxe4 {is tricky but playable} 9. Re1 d5 10. Nbd2 Bb4 11. a3 Bxd2 12. Nxd2 O-O 13. Nxe4 dxe4 14. Rxe4 b5 15. Bb3 Bf5 16. Rf4 Qd7 $11 {Sawicki-Lucki, ICCF corr 2012,1-0}) 9. Re1 O-O 10. Nc3 b5 11. Bb3 (11. Bc2 {alternative}) 11... Bg4 12. Be3 Re8 (12... Na5 13. Bc2 Nc4 14. b3 (14. Bc1) 14... Nxe3 15. fxe3 b4 16. Ne2 c5 $11 {Skorna-Hentzschel, GER ch tm Seniors, Finstebergen 2009,1-0}) 13. h3 Bh5 14. a3 (14. Rc1 Rb8 15. Bc2 Nb4 16. a3 Nxc2 17. Rxc2 d5 18. e5 Ne4 $11 {Van der Auweraert-Bakker, NED ch U13 Rijswijk 2006,1-0}) (14. g4 $1 Bg6 15. e5 Nd7 16. e6 fxe6 17. Bxe6+ Kh8 18. Bd5 Nb4 (18... Ndb8 19. Ne2 Rf8 20. Nf4 Bf7 21. Bxf7 Rxf7 22. Ne6 Qc8 23. d5 $18) 19. Bxa8 Qxa8 20. Bg5 Nc2 21. Rxe7 Rxe7 22. Bxe7 Nxa1 23. Ne1 $16 {Komodo10}) 14... Rb8 (14... Na5 15. Ba2 Nc4 16. Bxc4 bxc4 17. g4 Bg6 18. Nd2 Bf8 19. Bg5 h6 20. Bh4 Bh7 21. f4 $16 {Komodo10}) 15. Qc2 $5 (15. g4 Bg6 16. e5 dxe5 17. dxe5 Qxd1 18. Raxd1 Ne4 19. Nd5 $16 {Komodo10}) 15... h6 (15... Bxf3 16. gxf3 Na5 17. Ba2 Nc4 18. Kh2 g6 $11 {anticipating an attack on the g file}) 16. Nh4 (16. e5 $1 $18 {Komodo10; using the mobility of the centre} dxe5 17. dxe5 Bxf3 (17... Nd7 18. Qf5 $1 Bxf3 (18... Bg6 $2 19. Qxg6 $18) 19. Bxf7+ Kh8 20. Bxe8 Qxe8 21. Qxf3 Ndxe5 22. Qe4 $18) 18. exf6 Bxf6 19. gxf3 $18 {Komodo10}) 16... Na5 17. Ba2 c5 (17... Nxe4 { Rudy, looked like winning a pawn, however} 18. Qxe4 Bxh4 19. Qf5 $1 {Komodo10} Rxe3 (19... Bg5 20. g4 $18) 20. Rxe3 Qf6 21. Qxf6 Bxf6 22. Rae1 $16 {& Wh is a comfortable exchange up}) 18. g4 (18. dxc5 dxc5 19. e5 Nd7 20. Qf5 c4 21. Qxh5 Bxh4 22. g3 Be7 23. Rad1 Bf8 24. Bb1 $16 {the Bl pieces are pinned down & Wh has excellent K side attacking chances} Rxe5 25. Qg4 Rb7 26. Be4) 18... g5 $6 { totally weakens Bl's K side, but there are no easy alternatives} (18... Bg6 19. Nxg6 $18) (18... cxd4 19. Bxd4 Nc6 20. Nf5 (20. Be3 Qd7 21. Nf5 (21. gxh5 Qxh3 22. Nf5 Ne5 23. Nd4 Nfg4 $11 {and Bl has attacking prospects-Komodo10}) 21... Bg6 22. Rad1 Bxf5 23. exf5 Ne5 $11)) 19. Nf5 {wins two pawns} (19. gxh5 $1 { even stronger, Komodo10} gxh4 20. e5 Nc4 (20... Nh7 21. Bxf7+) (20... Nd7 21. Qg6+ Kh8 22. Qxh6+ Kg8 23. Bxf7+ Kxf7 24. Qg6+ Kf8 25. Bh6#) 21. exf6 Bxf6 22. Bxh6 Bxd4 23. Kh2 $18 {the Bl K is unsafe in the wideopen spaces}) 19... Bg6 20. Nxh6+ (20. e5 $1 {Komodo10 even stronger} dxe5 21. dxe5 Nd7 22. Nxe7+ Kh7 ( 22... Qxe7 23. Qxg6+) 23. Nxg6 fxg6 24. Rad1 Qc8 25. Ne4 Rb6 26. Qd2 $18 { and the Bl pieces huddled on the Q side have no way of protecting both themselves & their K.}) 20... Kg7 21. Bxg5 (21. h4 Kxh6 22. hxg5+ Kg7 23. gxf6+ Bxf6 24. dxc5 $16 {Komodo10}) (21. Nf5+ Bxf5 22. exf5 $16 {Komodo10}) ({ However best is} 21. Nxf7 $1 Bxf7 22. Bxf7 Kxf7 23. e5 $18 {that move again- if the N moves the Q enters on h7 with devastation}) (21. Bxf7 $1 {transposes}) 21... c4 {blocking the B, yet seems Bl can almost survive with} (21... cxd4 $1 22. Bxf7 (22. Nf5+ Bxf5 23. exf5 dxc3 24. Qxc3 Rc8 $11) 22... Bxf7 23. Ne2 Nb3 24. Rad1 Rc8 25. Nf5+ Kg8 (25... Kh8 26. Qd3 Rg8 27. f4 $16) 26. Qd3 Nc5 27. Qf3 Ncxe4 28. Bh4 d3 29. Nh6+ Kg7 30. Nxf7 Kxf7 31. Rxd3 d5 32. Nf4 $16 { an enormously complex position; courtesy of Komodo10}) 22. Nf5+ $18 Bxf5 23. exf5 Nc6 24. Qd2 Rh8 25. h4 (25. Rxe7 Nxe7 26. Re1 Neg8 27. Nd5 Kf8 28. Nxf6 Nxf6 29. Bh6+ Rxh6 30. Qxh6+ $18 {is another way forward for Wh- Komodo10}) 25... d5 (25... Nxg4 26. Rxe7 Nxe7 27. f3 f6 28. fxg4 $18 {Komodo10}) 26. Qe2 ( 26. Rxe7 $1 {Komodo10 still the quickest} Qxe7 (26... Nxe7 27. Bxf6+ Kf8 (27... Kxf6 28. Qg5#) 28. Bxh8 $18) 27. Nxd5 Qe4 28. Bxf6+ Kf8 29. Qf4 $1 Qxf4 30. Nxf4 Rh6 31. Nh5 $18 {the Bl pieces are stuck in uncordinated places}) 26... Nxd4 (26... Ng8 27. Qe3 Bxg5 (27... Rxh4 $5 28. Bxh4 Bxh4 29. Kg2 $18) 28. hxg5 Qd6 29. f4 $18 {again Wh will slowly take over the board, bringing his QR & the KB into position}) 27. Qxe7 Nf3+ 28. Kg2 Nxe1+ 29. Rxe1 (29. Qxe1 Qd6 30. Bxf6+ Qxf6 31. Nxd5 {also good}) 29... Qxe7 30. Rxe7 Nxg4 (30... d4 31. Ne4 Nxe4 32. Rxe4 d3 33. f3 Rbe8 34. h5 {and although the B on a2 is of little use other than prodcing a sac on d3 ( maybe though after Bd2, b3 becomes a possibility) the pawn mass on the K side will decide against a R that has no open lines to get any activity at all.}) 31. Nxd5 Rbd8 32. Nc7 (32. f6+ Kg8 33. Bb1 {and Bl is close to running out of moves}) 32... Rd2 33. Bb1 (33. Bxd2 { but it no longer matters}) 33... Rxb2 34. f6+ Nxf6 35. Ne6+ Kg8 36. Bxf6 fxe6 ( 36... Rxb1 37. Ng5 (37. Re8+ Kh7 38. Ng5+ Kg6 39. Bxh8) 37... Kf8 38. Rxf7+ Ke8 39. Re7+ Kd8 40. Nf7+ Kc8 41. Bxh8 Rd1 42. Be5 Rd5 43. h5 {and the h pawn will deliver mate when it queens.}) 37. Bg6 1-0