Sunday 22 October 2017

What's in a Name?

Carmarthen were lacking their strongest player, Gerry Heap, for the match against Aberystwyth at the Emlyn Cafe, Tanygroes, which meant they were comfortably outgraded on all boards. It's not always easy to cash in on such an advantage, but Aber at this early stage of the season, were in dominant form. On top board, Brendan-Budok Durand-Le Leduc, who has the longest name in the league as well as one of its highest gradings, seemed well prepared against David Buttell's Sicilian Dragon. Black's gambit didn't lead to any real attack, and Brendan was able to dominate with his passed pawns, winning on time when resignation must have been close anyway. Rudy van Kemenade, whose name seems almost humdrum in comparison, built a strong kingside attack against Paul Orton's London System, but didn't need to break in for mate as Black lost a piece to a pin and resigned. Julie van Kemenade dominated the centre with her closed line against Robert Narayan-Taylor's Sicilian in a way more characteristic of the open variations. When Black weakened his king's position with g5, the end came quickly. In the evening's third Sicilian, I picked up a piece early on against Wilf Davis, who was playing his first ever competitive match, and despite White's stubborn resistance, went on to close out the game. A second 4-0 victory in succession for Aberystwyth.

Event "Dyfed League:Carmarthen-Aberystwyth"] [Site "?"] [Date "2017.10.18"] [Round "?"] [White "Durand Le Leduc, B."] [Black "Buttell, D."] [Result "1-0"] [ECO "B76"] [WhiteElo "2172"] [BlackElo "1913"] [Annotator "Rudy"] [PlyCount "74"] [EventDate "2017.10.19"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. O-O-O d5 10. Qe1 {seemingly a surprise for Bl who has done well against} (10. exd5 Nxd5 11. Nxc6 bxc6 12. Nxd5 (12. Bd4 e5 13. Bc5 Be6 14. Bxf8 Qxf8 { a typical exchange sacrifice for bl square conrtol- Harris-Buttell, S Wales Summer op, Newport 2015,0-1}) 12... cxd5 13. Qxd5 Qc7 14. Qc4 (14. Qxa8 { is too dangerous}) (14. Qc5 Qb7 15. Bd4 Bf5 {Anilkumar-Buttell, 4NCL 2012,0-1}) 14... Qe5 {Rousos-Buttell, EU cup Rhodes 2013,0-1}) (10. Kb1 {is another, played eg in Short-Carlsen, London Classic 2009,1/2-1/2} Nxd4 11. e5 Nf5 12. exf6 Bxf6 13. Nxd5 Qxd5 14. Qxd5 Nxe3 15. Qd3 Nxd1 16. Qxd1 Be6 17. Bb5 { Bullen-Buttell, S Wales Summer op, Newport 2015, 1-0 ; another complex theoretical line.}) 10... e5 {main} (10... e6 11. h4 {alternative} (11. Kb1 Qe7 {Howell-G. Jones,GBR ch ko , London 2016,1-0})) 11. Nxc6 bxc6 12. exd5 cxd5 ( 12... Nxd5 13. Bc4 Be6 14. Ne4 {main alternative, 444 games in chessbase database online}) 13. Bg5 Qa5 {Bl has only managed 2 draws out of 7 with this move} (13... Be6 14. Bc4 Qc7 15. Bxf6 dxc4 16. Bxg7 Kxg7 {70 games, with results favouring Wh; eg Leko-Carlsen,, Miskolc m rapid, 2008, 1/2-1/2}) 14. Bxf6 (14. Nxd5 {preferred by the Cloud Engines} Qxe1 15. Ne7+ Kh8 16. Rxe1 Be6 (16... Nd7 17. h4 $18 {Savelli-Lacoste, FRA corr 1993,1-0}) 17. Bb5 a6 18. Ba4 h6 19. Bd2 $16 {Van der Weide-Molinari, Dieren op , 2001,1-0}) 14... Bxf6 15. Rxd5 (15. Nxd5 {suggested by Rudy, & preferred by the Cloud Engines & players} Qxe1 (15... Qxa2 {was what worried Wh in pm analysis because of a possible wandering Wh K, though Bl would not have contemplated going down this line.} 16. Nxf6+ Kh8 (16... Kg7 17. Qxe5 Kh8 {needed to prevent mate}) 17. Qxe5 { and Bl doesn.t even get the b pawn} Qa1+ 18. Kd2 Rd8+ 19. Ke3 $1 $18 {Komodo11} (19. Bd3 $18 {pmanaysis})) (15... Bg5+ 16. Kb1 (16. f4 Qxe1 17. Rxe1 exf4 $11 { Rubino-Naudier, FRA ch op, Nancy 2013,1/2-1/2}) 16... Qc5 17. Qxe5 Bf5 18. Nf6+ Bxf6 19. Qxc5 Rfc8 20. Qf2 Rxc2 21. Qxc2 Rc8 22. Bd3 $18 {Farkas-Lulic, Split op 2012, 1-0}) (15... Qd8 {considered in pm analysis} 16. h4 h5 17. Bc4 $16 { Djuric-Axionova, EU ch U12 girls, Rimavska Sobota 1996, 0-1}) 16. Nxf6+ Kg7 17. Nh5+ gxh5 18. Rxe1 f6 19. Bd3 (19. Bc4 Bb7 20. Rd1 $18 {Zeldin-Wern, Duesseldorf Nord Cup 2009,1-0}) 19... a5 20. Rd1 $16 {Oksienko-Punin, UKR ch U12, Kiev 1998,1/2-1/2}) 15... Qb4 $14 {Komodo11} (15... Qc7 16. Rd3 Be6 17. Ne4 Bg7 $11 {Cancio Bello Ayes-Solis Luna, Pan-American women, Sao Paulo 2010, 1-0}) 16. Qe4 (16. Rb5 Qd4 17. Ne4 Bg7 18. Rb4 Qd7 19. Kb1 $14 {Komodo11}) 16... Qe7 $11 {Bl has retained some attacking chances on the Q side for the gambitted pawn} (16... Qb6 $11) 17. Rb5 Bf5 18. Qb4 (18. Qb7 Rac8 19. Qxe7 Bxe7 20. Ne4 Rfd8 21. c3 Bxe4 22. fxe4 Bg5+ 23. Kc2 Rd2+ 24. Kb3 Rd1 $11 {Komodo11}) 18... Qxb4 19. Rxb4 Rfc8 (19... Bg5+ 20. Kb1 Rfd8 21. Bc4 Rd4 22. a3 a5 23. Ra4 Kg7 $11 {Komodo11; Bl has 2 Bs & the Wh pieces are still a little bit tangled}) 20. Ne4 Bxe4 (20... Be7 21. Rb7 Kf8 22. Bb5 Rab8 23. Rxb8 Rxb8 24. Bc4 Rc8 25. Bd5 Bd7 26. Rd1 f5 27. Nf2 Bg5+ 28. Kb1 Ke7 29. Nd3 Kf6 $14 {Komodo11}) 21. fxe4 $16 (21. Rxe4 $16) 21... Bg5+ 22. Kb1 Rc5 23. Bc4 a5 24. Ra4 Rd8 25. Bd5 Kg7 26. c4 (26. a3) (26. h4) 26... f5 27. Re1 (27. exf5 gxf5 28. Rf1 Kg6 29. a3 $16 {Komodo11 resorts to Bl giving up an exchange here to get some play}) (27. h4 Be3 28. a3 Bd4 29. b4 $16 {Komodo11}) 27... fxe4 {temporarily winning a pawn because of the backrank threat; however, with the opposite colour Bs, the Bl e pawns can make no further advance. Meanwhile Wh can get two connected passed pawns} 28. a3 (28. Rxe4 $2 Rdxd5 29. cxd5 Rc1#) (28. Bxe4 Rd4 29. b3 Rd2 30. a3 $16 {is possible, but Bl may be able to get some activity}) 28... e3 29. b4 axb4 30. axb4 (30. Ra7+ Kh6 31. axb4) 30... Rcc8 {again Komodo11 suggests Bl should give upan exchange to hold out longer} 31. Ra7+ $18 Kh8 32. b5 Rf8 33. b6 Rb8 34. b7 {tying down the Bl pieces} Bd8 35. c5 (35. Kc2 Bb6 36. Ra8 Kg7 37. Rxb8 Rxb8 38. Rf1 {Komodo11,cuts off the Bl K & prepares tomarch the Wh K up the board. However humans would mostly prefer to not to have to worry about an advanced e3 pawn}) 35... Bc7 36. Rxe3 Rfd8 37. Bf3 (37. Rd3 {Komodo11, who then sheds Bl's other e pawn to gain some space}) 37... Rd4 {and Bl lost on time. However he will soon be reduced to zugzwang as Wh treatens to advance his K up the board} (37... Rd2 38. Ra8 Kg7 39. c6 Kf7 40. Rxb8 Bxb8 41. Ra3 e4 42. Bxe4 Rd4 43. Ra8 Bxh2 44. Bf3 $18 {Komodo11}) (37... Rd4 38. Re4 {Komodo11} (38. Ra8 {considered in pm analysis} Rdd8 39. Kc2 Kg7 40. Rd3 (40. Kc3 Kf6 41. Kc4 Ke7 42. Kb5 Kd7 43. Bg4+ Ke7 44. Kc6 $18 (44. Bc8 $18)) 40... Rd4 41. Be4 Kf7 42. Rxd4 exd4 43. g3 Ke6 44. Kd3 Be5 45. Bc6 Ke7 46. Bd5 Rf8 47. Rc8 Rf1 48. Be4 Rb1 49. c6 Rb3+ 50. Kc4 Rb2 51. c7 $18 {most subsequent moves from Komodo11}) 38... Kg7 39. Kc2 Rdd8 40. Rh4 Rh8 41. Kc3 Rhf8 42. Kc4 Bd8 43. Re4 Bc7 44. Kb5 Rf7 45. Kc6 Kf6 46. Re3 e4 47. g3 h5 (47... exf3 48. Rxf3+ Ke7 49. Rxf7+ Kxf7 50. Kxc7) 48. Bxe4 Re7 49. Rf3+ Kg5 50. Rd3 Be5 51. Rd7 Rbe8 52. Ra8 Re6+ 53. Rd6 Bxd6 54. Rxe8 Rxe8 55. cxd6 Kf6 56. d7 Rd8 57. Bxg6 $18 {Komodo11} ) 1-0 [Event "DyfedLeague:Carmarthen-Aberystwyth"] [Site "?"] [Date "2017.10.18"] [Round "?"] [White "Orton, P."] [Black "Van Kemenade, R."] [Result "0-1"] [ECO "A45"] [WhiteElo "1608"] [BlackElo "2040"] [Annotator "Rudy"] [PlyCount "56"] [EventDate "2017.10.19"] 1. d4 Nf6 2. Bf4 {an old favourite of Tony Geraghty, since taken up by Jobava, now by Carlsen et al} d6 (2... g6 3. e3 Bg7 4. Be2 d5 5. Nd2 O-O 6. Ngf3 b6 7. Ne5 Nfd7 {Orton-Jukes, S Wales Open, Cardiff 2017,0-1}) 3. e3 g6 4. c3 Bg7 5. Nd2 O-O 6. h3 (6. Ngf3 {main, holds up e5 for a move or two}) 6... Nc6 (6... Nbd7) 7. Bd3 (7. Ngf3 {transposes to main}) 7... e5 8. Bh2 (8. dxe5 dxe5 { loses a piece}) 8... Re8 9. dxe5 (9. Qa4 Bd7 10. Qb3 exd4 11. cxd4 Nxd4 12. Qxb7 Bc6 13. Qb4 Nd5 (13... Bxg2) 14. Qa3 Nxe3 15. fxe3 Rxe3+ 16. Kd1 Bxg2 { Mavuso-Fancy, Baku ol 2016,0-1}) 9... dxe5 10. Bc2 {Komodo11, puts a potential e4 under pressure} (10. Bc4 {Deep Fritz13} e4 $15 {Komodo11}) 10... a5 (10... e4) 11. a4 e4 (11... b6 12. Qf3 Bb7 $15 {Deep Fritz13}) (11... Qe7 $15 { Komodo11}) 12. Ne2 Qe7 13. O-O $11 h5 {both restraining & potentially attacking } (13... b6 {both Engines; however Bl was looking at a future Bxh3}) 14. Bb3 { releases the pressure on e4} (14. Nd4 Nxd4 (14... Nb8 15. Qe2 Na6 16. N2b3 $16) 15. exd4 Bf5 16. Re1 Rad8 17. Bg3 c5 18. Nb3 cxd4 19. Nxd4 Qc5 20. Bh4 $14 { Komodo11}) 14... Ne5 15. Bxe5 {this gives Bl the K side possibilies he was looking for} (15. Nd4 $11 {both engines}) 15... Qxe5 16. Qc2 Qg5 (16... h4 17. Rad1 g5 $15 {Komodo11}) 17. Kh1 Ra6 {bringing the R into potential action on the Kside ,aiming for f6 or g6, (similar to a theme in the Budapest). The QB is as wellpaced on c8 as any other square} (17... Qh4 {threat Bxh3 is met by} 18. Nf4 {when} g5 $2 19. g3 $18 {winning Q has also occurred in the Budapest} ( 19. Ng6 $1 {Komodo11 has an even better effect})) 18. Ng3 $11 {Komodo11} (18. Rfd1 {Rudy, allows a N fo f1 to protect the K}) (18. Rad1 $11 {Deep Fritz13}) 18... Qh4 $15 {now Komodo11 changes its mind , having only expected} (18... Qe5 $11) 19. Bc4 {after some thought, bringing the B back to protect against a Ng4} (19. Kg1 Bxh3 {Komodo11} (19... Rd6 20. Rfd1 $11 {Deep Fritz13}) 20. gxh3 Qxh3 21. Ndxe4 Nxe4 22. Nxe4 Qg4+ 23. Ng3 h4 24. Qd1 Qg5 25. Qd5 Qxd5 26. Bxd5 hxg3 27. fxg3 Re7 28. e4 $11) (19. Kh2 {expected by Bl} Re7 {to protect f7 after the f file opens} 20. Rad1 Ng4+ 21. Kh1 $1 (21. Kg1 Nxe3 22. fxe3 Qxg3 $17 { planned by Bl}) 21... Nxe3 (21... Nxf2+ 22. Rxf2 Bxh3 (22... Qxg3 23. Nf1 Qh4 24. Rd8+ Kh7 25. Rxc8 $18) 23. gxh3 Qxh3+ 24. Rh2 Qxg3 25. Nc4 $11 {Komodo11}) 22. fxe3 Bxh3 23. Ndxe4 (23. gxh3 Qxh3+ 24. Kg1 Qxg3+ 25. Kh1 Qh3+ 26. Kg1 Re5 27. Nxe4 Qxe3+ 28. Qf2 (28. Nf2 Rg5+ 29. Kh2 Be5+ 30. Kh1 Qf3#) 28... Qxe4 $19) ) 19... Rd6 (19... Bxh3 $19 {considered, both Engines go for it; though Bl wasn't sure it was clear enough.} 20. Kg1 {both Engines} (20. Bxa6 {in variations that follow neither Engine considers there is much point in Wh taking the exchange.} Bc8+ 21. Kg1 Ng4 22. Rfd1 Qh2+ 23. Kf1 Qxg3 $1 {the point of the Engines play; missed by Bl & in pm analysis} (23... bxa6 24. Ngxe4 (24. Ke2 Qxg2 25. Rf1 (25. Ndxe4 Nxf2 $1 26. Nxf2 Bg4+ 27. Kd2 Qxf2+ 28. Kc1 Qxg3) 25... Nxe3 26. Kxe3 Bh6+ 27. Ke2 e3 $19 {an avalanche of sacrifices difficult for humans to foresee, though once into the situation they might be found by neccesity.}) 24... Bf5 25. Rab1 Bxe4 26. Nxe4 Qh1+ 27. Ke2 Qxg2 28. Rg1 Qxe4 $19 {also seems to work}) 24. fxg3 Nxe3+ 25. Kg1 Nxc2 26. Rac1 Ne3 27. Bb5 c6 28. Be2 Nxd1 29. Rxd1 {and after all that Bl is 2 pawns up ; Komodo11})) 20. Be2 (20. Kh2 Re7 $17 {Komodo11}) 20... g5 {the sacrifice does work, as established in pm analysis; however Bl had now decided that it was better , as Tartakover put it, to sacrifice your opponent's pieces & went for a pawn advance to prize open the K} (20... Bxh3 $1 21. Kg1 (21. gxh3 Qxh3+ 22. Kg1 h4 (22... Rxd2 {Komodo11, is another possibilty, to take pressure off e4, considered by Bl in some of the other variations} 23. Qxd2 h4 24. f4 Qxg3+ 25. Kh1 Re7 $19 26. Bc4 Qh3+ 27. Kg1 Rd7 28. Qg2 Qxe3+ 29. Qf2 Ng4 $19 {Komodo11}) 23. Ngxe4 (23. Nh1 Ng4 24. Bxg4 Qxg4+ 25. Ng3 {Komodo11} (25. Kh2 Be5+ { pm analysis, even worse for Wh}) 25... hxg3 26. f3 Rxd2 27. Qxd2 exf3 $19) 23... Re5 24. Nxf6+ Rxf6 25. f4 Rxe3 26. Rf3 Qg4+ 27. Kf2 Rxf3+ 28. Nxf3 Qg3+ 29. Kf1 h3 30. Bd1 Qxf4 $19 {Komodo11}) 21... Bh6 22. Nc4 Rd5 23. Rfd1 Rg5 24. gxh3 Qxh3 25. Bf1 Qe6 26. Bg2 h4 $19 {Komodo11}) 21. Kg1 g4 22. Ndxe4 (22. hxg4 {holds for longer; both Engines} Nxg4 23. Bxg4 hxg4 24. Rfd1 Rh6 25. Kf1 Be5 26. Ngxe4 (26. Ndxe4 f5 $19) (26. Qxe4 Bd7 $19) 26... f5 27. Nc5 Bd6 28. Qd3 Kf8 29. Qc4 b6 30. Ncb3 Bb7 31. Ke2 Bxg2 $19 {Komodo11; the Wh pieces can scarcely move}) 22... Nxe4 23. Nxe4 Bf5 $19 (23... gxh3 $1 {both Engines- Bl need not worry about his Rs, when he also has a Q & Bs.} 24. g3 (24. Nxd6 hxg2 25. f4 (25. Kxg2 Bh3+ 26. Kh1 cxd6 27. Qd1 {other moves lose the Q} Re6 $19 { mating}) 25... Qh1+ 26. Kf2 gxf1=Q+ 27. Rxf1 Qh4+ 28. Kg1 Qg3+ 29. Kh1 Rxe3 30. Ne4 Qh4+ 31. Kg1 Bh3 32. Rf2 Rg3+ 33. Nxg3 Qxg3+ 34. Kh1 Qxf2 35. Qe4 Bh6 $19) (24. Bf3 hxg2 25. Bxg2 Rg6 26. Ng3 Qg4 27. Qe2 h4 $19) (24. Ng3 hxg2 25. Rfd1 Be5 {and Komodo's best for Wh is to shed a piece to get rid of Qs} 26. Qe4 Bxg3 27. Qxh4 Rxd1+ 28. Rxd1 Bxh4 $19) 24... Qxe4 $19 {Komodo11}) 24. g3 (24. Nxd6 { Iolo,lasts longer , but the 2 Rs (undeveloped as they are) are no match for the Q} Bxc2 {some of Rudy's pm analysis was not possible, because the position here had been mistakenly left with a Blpawn already having taken on h3} 25. Nxe8 Be5 $1 (25... gxh3 26. Nxg7 Kxg7 27. Bf3 hxg2 28. Bxg2 Qg4 29. Kh2 b6 { along the lines of pm analysis; the Rs have both trouble in coordinating & in protecting their Q side pawns}) 26. f4 (26. Rfd1 gxh3 27. Bf3 h2+ 28. Kh1 Bxd1 29. Rxd1 Qxf2 $19) (26. Rac1 Be4 $19) 26... gxf3 27. Rxf3 Kf8 {and the N is lost , leaving Wh with an exposed K side as well} 28. Nf6 Bxf6 29. Raf1 Be5 30. Rxf7+ Ke8 31. R7f2 Bg6 32. Rd1 Bh2+ 33. Kf1 Qxa4 $19 {Komodo11}) 24... Qe7 25. Bd3 (25. Nxd6 {still seems to Wh's best hope according to both Engines} Bxc2 26. Nxe8 Qxe8 27. hxg4 hxg4 28. Bxg4 Qe4 29. Bd1 Bd3 30. Re1 Bc4 31. Rc1 Bd5 32. f3 Qg6 33. Kf2 Qh6 34. Rg1 Be5 35. Rc2 Qh2+ 36. Kf1 (36. Rg2 Bxg3+) 36... Bc4+ 37. Be2 Be6 38. g4 Bd6 $19 {the Bs keepnudging the pawns forward,so that the Q can harvestthem. Meanwhile the Wh Rs sit and wait helplessly.}) 25... Bxe4 (25... Rxd3 26. Qxd3 Bxe4 $19 {keeps an eye on mating possibilities, but an extra pice will do nicely.}) 26. Bxe4 Qxe4 27. Qxe4 Rxe4 28. hxg4 hxg4 0-1 [Event "DyfedLeague:Carmarthen-Aberystwyth"] [Site "?"] [Date "2017.10.18"] [Round "?"] [White "Van Kemenade, J."] [Black "Narajan-Taylor, R."] [Result "1-0"] [ECO "B23"] [WhiteElo "1752"] [BlackElo "1468"] [Annotator "Rudy"] [PlyCount "56"] [EventDate "2017.10.19"] 1. e4 c5 2. Nc3 e6 3. f4 Nc6 4. Nf3 Nge7 (4... d5 {main}) 5. Be2 (5. d4) (5. Bb5) (5. g3) 5... Ng6 {the N is misplaced here in this variation, as Bl has no control over e5 or f4.} (5... d5) (5... g6) 6. d3 (6. d4 {also possible}) 6... Nd4 (6... Nh4 7. O-O Nxf3+ 8. Bxf3 Be7 9. Qe1 O-O 10. Be3 b6 11. e5 d5 12. exd6 Qxd6 13. f5 $11 {Burnett-Schwerwitz, SCO ch, Edinburgh 2015,1-0}) 7. O-O Nxe2+ {exchanging a N taking 3 moves for a B only used one move , must be helpful to Wh} (7... d5 $11) 8. Nxe2 {aiming for the K side} (8. Qxe2 $16 {Komodo11} d5 9. f5 $18) 8... Qc7 (8... d5 $11 {Komodo11}) 9. Qe1 (9. f5 $16 {Komodo11} Ne5 10. Nxe5 Qxe5 11. c3 b6 12. Bf4 Qf6 13. Ng3 (13. d4 $16) 13... e5 14. Be3 $16) 9... Be7 10. c3 (10. f5) (10. h4) 10... b5 {Bl keeps sniping from the sidelines} ( 10... d5 $11) 11. d4 (11. f5 Ne5 12. Nxe5 Qxe5 13. Bf4 Qf6 14. Ng3 $16 { Komodo11}) 11... Bb7 12. f5 $16 exf5 $2 {its usually best not to open up the centre when your K is still there & you are behind in development} (12... Nf8 13. Bf4 Qb6 14. d5 $16 {the Bl pieces have few lines of activity open}) 13. exf5 $18 Nf8 (13... O-O {may be Bl's best according to Komodo11!} 14. fxg6 fxg6 15. Be3 c4 16. Qg3 $18) 14. Ng3 (14. dxc5 {Komodo11} Qxc5+ 15. Ned4 f6 16. a4 bxa4 17. Rxa4 (17. b3 Qc7 18. Ba3 Qd8 19. Qg3 Kf7 20. Bxe7 Qxe7 21. Rfe1 Qd8 22. Rxa4 $18) 17... Kf7 18. Qe2 $18 (18. Kh1 $18)) 14... f6 15. dxc5 Qxc5+ 16. Be3 Qc7 17. Bd4 (17. Nh5) 17... d6 18. Qf2 (18. Nh5 Rg8 19. a4 $18 {Komodo11}) (18. Ng5 h5 (18... fxg5 19. Bxg7 Rg8 20. f6 $18) 19. Rd1 a6 20. Ne6 Nxe6 21. fxe6 O-O-O 22. Nf5 $18 {Komodo11}) 18... a6 (18... Nd7) 19. Rfe1 $16 (19. Rae1 $18) (19. Nh5 Rg8 20. Nf4 $18) 19... Kf7 20. Re2 (20. Nh5 Nd7 (20... Re8 21. Ng5+ $18) 21. Nxg7 $18) 20... Re8 (20... Nd7 $14) 21. Rae1 Nd7 22. Nh5 g5 $6 { fatally opening up the K side for the Wh pieces to invade} (22... Ne5 {closes the dangerous file but Wh still retains a pull} 23. Qg3 Rhg8 24. Qh3 Rh8 25. Nf4 Qc8 26. Qh5+ Kg8 27. Ne6 Bf8 28. Rd2 $16 {Komodo11}) 23. fxg6+ hxg6 24. Ng5+ Kg8 25. Nxf6+ {the best it seems, after some time allowed for Komodo11.} ( 25. Rxe7 {second best} Rxe7 26. Rxe7 Rxh5 27. Re8+ Kg7 (27... Nf8 28. Qxf6 Rxg5 29. Rxf8+ Kh7 30. Qh8#) 28. Ne6+ Kf7 29. Nxc7 $18) (25. Qxf6 {4th; considered by Julie, but couldn't make it work properly- but it allcomes together neatly for Wh} Nxf6 (25... Rxh5 26. Qg7#) (25... Bxf6 26. Rxe8+ Nf8 27. Nxf6+ Kg7 28. R1e7+ Qxe7 29. Rxe7+ Kh6 30. Nf7+ Kg7 31. Ng4+ Kg8 32. Nfh6+ Rxh6 33. Nxh6#) 26. Nxf6+ Kf8 (26... Bxf6 27. Rxe8+ Kg7 28. R8e7+ Kh6 29. Nf7+ Kh5 30. Rxc7 $18 ) 27. Ne6+ Kf7 28. Nxc7 Bxf6 29. Nxe8 Bxd4+ 30. cxd4 Bc6 31. Nxd6+ Kf8 32. Rf1+ Kg8 33. Rc1 $18 {Komodo11}) (25. Ng7 $1 {3rd; is another plan, a typical odd Engine idea, to save the N on h5- taking then loses the Q.} Rh5 26. Nxe8 Rxg5 27. Nxc7 Rxg2+ 28. Qxg2 Bxg2 29. Rxe7 Bc6 30. R1e6 $18 {Komodo11}) 25... Nxf6 26. Bxf6 (26. Qxf6 {is almost as strong . 'Don't always look at only the most obvious recapture, there may be other moves available' Topalov in a Gibraltar masterclass} Bxf6 27. Rxe8+ Kg7 28. R8e7+ (28. Ne6+ Kf7 29. Nxc7 {winning Q directly is not as strong it seems}) 28... Kh6 (28... Qxe7 29. Rxe7+ Kh6 30. Bxf6) 29. Nf7+ Kg7 30. Rxc7 {as in the Julie idea in note above.}) 26... d5 27. Bxh8 (27. Rxe7 {just as good, Komodo11; but which human would allow the opponent a free sequence of checks?} Qxh2+ 28. Kf1 Qh1+ 29. Qg1 Rxe7 30. Rxe7 Qxg1+ 31. Kxg1 Rh1+ 32. Kxh1 Kf8 33. Rxb7 Ke8 34. Ne6 d4 35. Re7#) 27... Kxh8 ( 27... Qc5 28. Bd4 Rf8 {lasts longer} 29. Rxe7 Qxe7 30. Qh4 Qxe1+ 31. Qxe1 Bc8 32. Qe7 {mating}) 28. Qh4+ (28. Rxe7 $1 Qxe7 (28... Rxe7 29. Qf8#) 29. Rxe7 Rb8 30. Qf6+ Kg8 31. Qg7#) 28... Kg7 {and Bl resigned because his Q is lost However Wh also has a forced mate} (28... Kg7 29. Qh7+ Kf6 30. Re6+ Kf5 (30... Kxg5 31. Rxg6+ Kf5 32. Qf7+ Bf6 33. Qxf6#) 31. Qxg6+ Kg4 (31... Kf4 32. Nh3#) 32. Nf3+ Kf4 33. Qg3+ Kf5 34. Nd4#) 1-0 [Event "DyfedLeague:Carmarthen-Aberystwyth"] [Site "?"] [Date "2017.10.18"] [Round "?"] [White "Davis, Wilf"] [Black "Francis, Matthew"] [Result "0-1"] [ECO "B28"] [WhiteElo "1400"] [BlackElo "1756"] [Annotator "Rudy"] [PlyCount "78"] [EventDate "2017.10.19"] 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. Be2 {the second most common move- but it leaves the Bl Q in a strong centralised position, which then extends to the other pices that join her.} (5. d4 {main, stakes a claim for Wh in the centre as well} Nf6 6. Be2 e6 7. O-O Nc6 8. Be3 cxd4 9. cxd4 Be7 10. Nc3 { and Bl has a variety of places to shift the Q to, with chances for both sides}) 5... e5 (5... Nf6 {main} 6. O-O Nc6 7. d4 e6 {then transposes back to note above}) 6. d3 {a bit passive} (6. d4 $14 e4 (6... cxd4 7. O-O (7. cxd4) 7... Nc6 8. Re1 Be7 (8... Be6 9. cxd4 exd4 10. Ng5 {Scifferdecker-Euwe, clock simul 1949,1-0}) 9. cxd4 Nxd4 10. Nxd4 Qxd4 11. Nc3 Qxd1 12. Bxd1 Be6 13. Rxe5 $11 { Paredes-Aguiar, Carris op, Lisbon 2002,1-0}) 7. Ne5 cxd4 8. cxd4 Nc6 9. Bc4 (9. Nxc6 Qxc6 10. Nc3 $16) 9... Bb4+ 10. Nc3 Qxd4 11. Qxd4 Nxd4 12. O-O (12. Nxf7) (12. Bxf7+) 12... Be6 $11 {Albesa-Barata, CADAP email 2007,2007,0-1}) 6... Nc6 7. O-O Nf6 (7... Bg4 8. Qa4 (8. Re1 $14) (8. Na3 $14 {both Komodo11}) 8... Bd7 9. Qc2 Be7 10. Nbd2 b5 11. Ne4 Nf6 12. Rd1 O-O 13. Nfg5 $14 {Sabotic-Rusu, Wld ch tm Silent, Brno 1994,0-1}) 8. Nbd2 Be7 9. Qb3 (9. Nc4 $14 {Wh will lay siege to rge e5 pawn, in a manner following Nimsovitch ( for Bl) with Re1 & Bf1 }) 9... Qxb3 {Komodo11 likes this- Bl keeps a space advantage even withiut Qs. Qs are good attackers, but also can be crucial to a defence, being able to cover several points simultaneously.} 10. axb3 {looks logical, but Komodo11 prefers} (10. Nxb3 O-O 11. d4 $11 (11. Nfd2 $11)) 10... O-O (10... Nd5 11. Nc4 f6 $15 {Komodo11}) 11. c4 {this doesn't feel right- Wh is creating bl square holes} (11. Nc4 Nd7 12. Nfd2 b5 13. Ne3 Bb7 14. Bf3 $11 {Komodo11}) 11... Bf5 $17 {homing in on the weakness at d3, made worse by its companion pawn moving forward} 12. Nh4 (12. Rd1 Rad8 13. Nf1 Rfe8 $17) 12... Be6 13. Ne4 $2 {in his first ever competitive game, Wh tries to eliminate a d3 weakness, but forgets about a dangling N} Nxe4 $19 14. Nf3 (14. dxe4 Bxh4 $19) 14... Nf6 {Bl is a piece up & its a matter of breaking down the opposition bit by bit} (14... Nd6 {sends the N into d4}) 15. h3 Rad8 16. Rd1 e4 (16... Rfe8) 17. dxe4 Rxd1+ ( 17... Nxe4) 18. Bxd1 Nxe4 19. Be3 Rd8 20. Kf1 Nd4 (20... Nb4 21. Rc1 Bf6 { wins the b2 pawn}) 21. Ne1 Bf6 (21... b5 {piles on the pressure against the Bl pawns}) 22. Bc1 {it looks as Wh has reteated all of his pieces to ensure that Bl can't swap any of them off.} Bf5 (22... b5) (22... Bh4 23. Be3 Nf5) 23. Be3 Bg5 24. Bxg5 Nxg5 25. h4 Ne4 26. Kg1 Re8 (26... Nd2 27. Ra3 Re8 28. Nf3 N2xf3+ 29. Bxf3 Re1+ 30. Kh2 Nxf3+ 31. gxf3 Re2 $19 {leaves Wh helpless}) 27. Nf3 h6 28. g4 {trying to see if a piece can be won, but Bl is still in control} Bxg4 29. Nxd4 Bxd1 (29... cxd4 30. Bxg4 $17) 30. Rxd1 cxd4 (30... Rd8) 31. Rxd4 Nf6 32. Kf1 Re4 33. Rd8+ Kh7 34. Rb8 Re7 {no counterplay, thank you} 35. Rd8 Kg6 ( 35... Rd7 36. Rc8 Rd3 37. b4 Rb3 38. b5 axb5 39. c5 Rxb2 {Bl's b pawn is faster, plus Bl has a N}) 36. Rd3 Re4 (36... Kh5) 37. Rg3+ Rg4 38. Rh3 Kh5 39. Re3 Re4 0-1

Saturday 7 October 2017

Secret Weapon

For the first time in several years, Aberystwyth is only fielding one team in the Dyfed League this year, due to the transport problems which affected us last season. On the plus side, we have acquired a new secret weapon in Brendan-Budok Durand-Le Leduc, whose rating of 2172 makes him the third-strongest player in the league. We were thus able to field a really strong team for the first match of the season, against Steynton B at the Emlyn Cafe, Tanygroes on Wednesday 4 October. There were no fireworks in the early stages of Brendan's top board game against John Miller; a closed Sicilian yielded a level middle-game, which lasted until White allowed a passed pawn and fell into a deadly pin in capturing it. Rudy van Kemenade played the enterprising Tennison Gambit against Gwyn Evans's Scandinavian, and quickly succeeded in disconcerting his opponent, who not only dropped the exchange but allowed a decisive queen invasion. Julie van Kemenade also won material early, picking up a piece against Jonathan Jones by a well-known trick, and then built up patiently for a crushing assault on White's king. Sam Holman's Ruy Lopez against Ray Greenwood began sharply, then reached a tense late middle-game (or early endgame?) in which he was helped by Black blundering a piece, and went on to finish neatly. A clean sweep for Aberyswyth, 4-0.

[Event "Dyfed League:AberystwythA-SteyntonB"] [Site "?"] [Date "2017.10.04"] [Round "?"] [White "Miller, John S"] [Black "Durand Le Leduc, B."] [Result "0-1"] [ECO "B40"] [WhiteElo "1677"] [BlackElo "2172"] [Annotator "Rudy"] [PlyCount "64"] [EventDate "2017.10.05"] 1. e4 c5 2. Nf3 e6 3. Nc3 (3. d4 {main, but Wh prefers to head for a Closed Sicilian variant} cxd4 4. Nxd4 a6 5. Be2 Qc7 6. O-O b5 7. Be3 Bb7 8. f3 Bd6 9. g3 Nf6 10. Bxb5 Bxg3 11. Qd2 Be5 12. Bd3 d5 13. Nc3 dxe4 14. fxe4 Ng4 { Gerfault-Durand Le Ludec, Angers op 2014,0-1}) 3... a6 4. g3 b5 (4... Qc7 5. Bg2 Nc6 6. O-O Nf6 7. d3 Be7 8. Bd2 d6 9. Ng5 h6 10. Nh3 b5 11. f4 Bb7 12. Nf2 O-O 13. Be3 {Miller-Martin Jones, Dyfed League apr 2017,1-0; a strategy discussed in the pm analysis to the present game.}) 5. a3 (5. Bg2 Bb7 6. d3 { main; Wh need not worry about b4 ,which disrupts the Bl Q side pawns}) 5... Bb7 6. d3 Nf6 (6... g6 {was preferred by Bl in pm analysis, to put the bl B on a more active diagonal}) 7. Bg2 Be7 $146 (7... d5 {(Rudy) main; more active; 2-4} 8. e5 {Bl's concern, having to defend against a King's Indian Attack; but 0-2}) 8. O-O (8. e5 Nd5 9. Ne4 $14 {Komodo11}) 8... O-O 9. Bd2 (9. e5 {Cloud Engines} ) (9. Be3 {Brendan} d5 $11 {Rudy}) 9... d6 10. Qe2 (10. Ng5 h6 11. Nh3 Nc6 12. f4 {John} d5 $15 {Komodo11,open centre in response to K side attack.}) (10. Re1 Nbd7 11. e5 $11 {Komodo11} (11. d4 cxd4 12. Nxd4 Ne5 $15)) 10... Nc6 11. Nd1 ( 11. Rae1) 11... Nd4 (11... d5 $15 {Komodo11}) 12. Nxd4 cxd4 13. c3 dxc3 14. Bxc3 $11 Qb6 (14... d5 {Komodo11}) 15. h3 {not necccessary} (15. Ne3) (15. Qe3) 15... a5 16. Qe3 Nd7 17. Qxb6 Nxb6 18. Ne3 (18. Bd4 {Komodo11} Nd7 (18... Na4 19. Nc3 (19. b4 Rfc8 $15) 19... Nc5 (19... Nxb2 20. Nxb5 Nxd3 21. Rfd1 Ne5 22. a4 {Komodo11 considers = as Wh has play for the pawn})) 19. Ne3 $11) 18... Na4 19. f4 (19. d4 Nxc3 20. bxc3 Bc6 21. c4 $11 {Komodo11}) (19. Rab1 $11 {Komodo11 }) 19... Nxc3 20. bxc3 Rac8 $15 {the position now has that slight imbalance in pawn structure that favours the higher rated player in practice} 21. Rfc1 Ba6 22. Bf1 (22. d4 $5) (22. Kf2 $5 {both Komodo11}) 22... Rc7 (22... g6 {creates an escape square for the K}) 23. a4 $11 {eyeing the back rank} Ra8 24. d4 b4 25. Bxa6 Rxa6 {Komodo11} 26. c4 {gives Bl a passed pawn, but maybe Wh gets chances in the centre} (26. Kf2 $11) 26... Rb6 (26... Bf6 27. Rd1 (27. e5 dxe5 (27... Bd8 $17 {Komodo11}) 28. fxe5 Bg5 29. Kf2 f6 $17) 27... e5 28. fxe5 dxe5 29. d5 Be7 $15 {& the Wh centre advance is blocked;Komodo11}) 27. Rab1 b3 { this could wait; the advance can cause disruption in the Wh side,but the pawn might be lost .} (27... h5 {bolt hole for K}) 28. d5 {gives the B a good diagonal,however} (28. e5 dxe5 29. fxe5 f6 $17) (28. Rc3 Rcb7 29. c5 dxc5 30. dxc5 Rb4 31. c6 Rc7 32. Rbxb3 Rxc6 33. Rxc6 Rxb3 34. Rc8+ Bf8 35. Kf2 Rb4 36. Nc4 Rxa4 37. Ne5 Rd4 38. Ke3 Rd1 39. Ke2 Rd4 40. Ke3 $11 {repetition; Komodo11} Rd6 41. Ra8 $11) (28. Kf2 g5 29. Rc3 gxf4 30. gxf4 Rcb7 31. c5 dxc5 32. dxc5 Rc6 33. Kf3 Bxc5 34. Nd1 Rcc7 35. Rbxb3 Bd4 36. Rxb7 Rxb7 37. Rc4 Bg1 38. f5 $11 {Komodo11}) 28... Bf6 29. Nd1 (29. e5 $1 {Komodo11 Bl thought that Wh ought to have tried this- looked at in pm analysis. Wh can get 2 dangerous advanced centre pawns & Bl has to keep a watchful eye on the backrank.} dxe5 ( 29... Be7 30. Rc3 (30. c5 Rxc5 31. Rxc5 dxc5 32. d6 Bd8 33. Kf1 Rb4 34. Ke2 g5 35. Kd3 gxf4 36. gxf4 Kf8 $15) 30... b2 31. Rc2 $14) 30. c5 Rb8 31. c6 Rb6 32. Nc4 Rb8 33. Nd6 $1 exd5 34. Nb5 Re7 35. Rxb3 h6 36. Rc5 exf4 37. gxf4 Rc8 38. Kg2 $16 d4 39. Nd6 Rd8 40. Nf5 Rc7 41. Rb7 Rdc8 42. Rxc7 Rxc7 43. Kf3 $16) 29... Bd4+ $19 30. Kf1 b2 (30... exd5 31. exd5 b2 $19 {Komodo11}) 31. Rc2 (31. Nxb2 Rxb2 $19 (31... Bxb2 32. e5 Rcb7 33. c5 Bxc1 34. Rxb6 Rxb6 35. cxb6 Be3 36. b7 Ba7 $19)) 31... Rb4 32. Nxb2 Rcb7 0-1 [Event "Dyfed League:AberystwythA-SteyntonB"] [Site "?"] [Date "2017.10.04"] [Round "?"] [White "Van Kemenade, R."] [Black "Evans, Gwyn"] [Result "1-0"] [ECO "B01"] [WhiteElo "2028"] [BlackElo "1453"] [Annotator "Rudy"] [PlyCount "57"] [EventDate "2017.10.05"] 1. e4 d5 2. Nf3 {The Tennison Gambit, a relative of the Budapest, & preceding it , dating from1891 against The first Budapest in 1899.. Also known the Lemberg or Lvov Gambit} dxe4 3. Ng5 Nf6 (3... Bf5 4. g4 Bg6 5. Bg2 Nf6 6. Nc3 Nc6 7. Ngxe4 Qd7 $5 8. Nc5 {Van Kemenade-Francis, Dyfed League 2015,1-0}) 4. Bc4 e6 5. Nc3 {the difference between the Tennison & the Budapest is that the c pawn has not adbvanced. giving Bl the possibility of Bc5 , except that this piece itself might come under attack.} Nc6 (5... Be7 6. O-O O-O 7. Re1 Nc6 8. Ncxe4 Nxe4 9. Nxe4 Ne5 10. Bf1 Nd7 11. d4 Nf6 12. Ng5 {Van Kemenade-Garcia, WCPL 2016,0-1 after Wh missed early attacking chances & misplayed a near winning ending with 3 connected passed Q side pawnsfor an exchange}) 6. O-O Bd6 (6... Be7 {simpler, but Bl is responding to a gambit by posting his pices on active squares.}) 7. Re1 (7. Ncxe4 $2 {loses a key pawn} Nxe4 8. Nxe4 Bxh2+ 9. Kxh2 Qh4+ 10. Kg1 Qxe4 {a trap that Bl can also fall into in the Budapest}) 7... O-O (7... Ne5 8. Be2 (8. Bf1) 8... Nc6 9. Bb5 Bd7 10. Ncxe4 O-O 11. Bd3 Nxe4 12. Nxe4 Ne5 13. Be2 Bc6 14. Nxd6 Qxd6 15. d4 $11 {Kinsvater-Harvey,CC Va-N.C.State, 1975,0-1}) 8. Ncxe4 Nxe4 9. Nxe4 Qh4 {attacking, but its the Bl Q that gets into difficulties rather than the Wh K.} 10. g3 {the Wh B can always return to f1 to guard the g2 weakness} Qh3 (10... Qd8 11. d4 e5 12. Nxd6 cxd6 13. dxe5 dxe5 14. Bd5 Qc7 15. c3 $11 (15. Qh5 $11 {though Wh has 2 Bs & a Q side majority for the ending})) 11. Ng5 (11. Bf1 Qf5 12. d4 $14 {original idea, but the text gives Bl more chances of going wrong}) 11... Qf5 12. d4 h6 13. Bd3 Qf6 {missing the detail that attacked Ns can go forward , as well as backwards. However there are possible tactics if the Q moves away from protecting the Bl K.} (13... Qd5 14. Nf3 (14. Nh7 Rd8 15. Bxh6 {the Bl K's shelter is unsafe} Be7 (15... gxh6 16. Nf6+ $18 {wins the Q}) 16. Be4 (16. Bg5 Bxg5 17. Be4 Qxd4 (17... Bh6 $5 18. Bxd5 Rxd5 19. c4 Rxd4 20. Qh5 Kxh7 21. Qxf7 Bd7 22. Rad1 Rd8 $11 {Bl has 3 pieces for the Q}) 18. Nxg5 Qxd1 19. Raxd1 $14) 16... Bg5) 14... Qh5 (14... Nxd4 $2 15. Nxd4 Qxd4 16. Bh7+ {wins the Q}) 15. Be4 (15. Be2 Qg6 16. c3 $14) 15... Bd7 16. c4 f5 17. Bc2 f4 18. Be4 $14) (13... Qa5 14. Nh7 (14. Nf3 Bd7 15. c3 {& the Q is in danger on the Q side, so has to come back}) 14... Rd8 15. Bxh6 $1 {Komodo11; making use of the weakening of the K position & the absence of Bl protectors} gxh6 16. Qg4+ Kh8 17. Qh4 Bf8 18. Nxf8 Qg5 (18... Kg7 19. Nh7 $18) (18... Rxf8 19. Qxh6+ Kg8 20. Qh7#) 19. Qxg5 hxg5 20. Nh7 g4 21. Nf6 $16 {Komodo11}) 14. Nh7 $18 Qe7 {Bl misses that he can get extra pawn for the exchange; however Komodo11 still keeps its eye firmly on the plight of the the Bl K} (14... Qxd4 15. c3 $1 Qd5 (15... Qc5 16. Be3 Qa5 (16... Qd5 17. Nf6+ gxf6 18. c4 Qa5 19. Qg4+ Kh8 20. Bxh6 Rg8 21. Qh4 Rg7 22. Bd2+ $18) 17. Bxh6 $1 $18 Be5 18. Bg5 $1 Re8 19. Qh5 Bd7 20. Nf8 f5 21. Nxd7 $1 $18 {Komodo11})) 15. Nxf8 Kxf8 (15... Qxf8 {is a little better, though Wh will eventually open up the position for the exchange up to count.}) 16. c3 b6 17. Qf3 (17. d5 Ne5 18. Be4 Rb8 19. Bf4 Qf6 20. Bg2 $18 {and is better developed than Bl-Komodo11}) 17... Bb7 18. Be4 (18. Qe4 Qf6 {and the Bl K shelters on e7 after a Qh7}) 18... Qd7 19. b4 {threatens to win a piece} (19. Bf4 {also}) 19... Rb8 (19... a6 20. a4 Rb8 (20... Kg8 21. b5 axb5 22. axb5 Rxa1 23. bxc6 $18 {pm analysis}) 21. b5 {similar to the game}) 20. Qd3 {signalling, but Bl misses it.} (20. a4 a5 21. b5 Nd8 22. Bd2 $18 {Komodo11}) 20... e5 { trying for some activity before the Wh pieces can get going, but the opening of lines must favour Wh's Rs.} (20... Kg8 {pm analysis & Komodo11} 21. Bd2 $18 (21. Bb2 $18 {Komodo11})) 21. b5 Nd8 22. Bxb7 (22. dxe5 {wins a piece immediately, but Wh had a mindset for playing the Q to h7.}) 22... Nxb7 23. dxe5 Nc5 {guarding the Q, however} 24. Qh7 Bxe5 {the win is a matter of preference now} 25. Qh8+ (25. Rxe5 {preferred by Komodo11} f6 26. Rxc5 { the attacked R desperadoes, grabbing what it can before the Q collects the Bl R } bxc5 27. Qh8+ Kf7 28. Qxb8 Qd1+ 29. Kg2 Qd5+ 30. f3 {and Bl has no good checks}) 25... Ke7 26. Rxe5+ (26. Qxg7 Re8 27. Qxe5+ Kd8 28. Qxe8+) (26. Qxb8 Kf6 27. Ba3 Bd6 28. Bxc5 Bxc5 29. Rad1 {are alternatives- Wh wanted rid of the B as more active than Bl's R}) 26... Kf6 (26... Kd6 27. Qxg7 {Rudy} (27. Bf4 $1 {Komodo11} Ne6 28. Rd1+ Ke7 29. Rxd7+ Kxd7 30. Qxb8) 27... Qxb5 28. Qxf7 (28. Qf6+ Kd7 29. Qxf7+ Kc8 30. Re8+ Kb7 31. Qd5+ c6 32. Qf7+ Ka6 33. Rxb8) 28... Qd3 29. Qf6+ Kd7 30. Bf4 $18) 27. Qxb8 Qd1+ (27... Kxe5 {doesn't lose the Q, but again Wh has several ways ahead} 28. Bf4+ (28. Qh8 $1 {Komodo11} Qd1+ ( 28... Kf6 29. Bxh6 Ne6 30. Bxg7+ Nxg7 31. Qh6+ Ke7 32. Qxg7) 29. Kg2 Qd5+ 30. f3 Ke6 31. Bxh6 Kd7 (31... gxh6 32. Re1+ {mating}) 32. Qxg7) 28... Kf6 29. Qxc7 Qxb5 30. Be3 Ne6 31. Qxa7 $18) 28. Kg2 Kxe5 29. Bf4+ 1-0 [Event "DyfedLeague:AberystwythA-SteyntonB"] [Site "?"] [Date "2017.10.04"] [Round "?"] [White "Jones, Jonathan"] [Black "Van Kemenade, Julie"] [Result "0-1"] [ECO "C24"] [WhiteElo "1500"] [BlackElo "1752"] [Annotator "Rudy"] [PlyCount "88"] [EventDate "2017.10.05"] 1. e4 d6 2. Nc3 (2. d4 {main}) 2... e5 (2... Nf6) 3. Bc4 Nf6 4. d3 Be7 5. Bg5 ( 5. f4 {main eg Short-Strikovic, SA Open Cape Town 2015, 1/2-1/2} Nc6 6. Nf3 exf4 7. Bxf4 O-O) 5... Nbd7 (5... Nc6 {main}) (5... c6 {next}) 6. Nd5 $2 { Wh overpresses, missing a standard trick} Nxd5 $19 7. Bd2 (7. Bxe7 Nxe7) (7. Bxd5 Bxg5 {& in both cases Bl retains an extra piece}) 7... N5f6 (7... N5b6 8. Bb3 Nc5 $19 {Komodo11}) 8. Nf3 h6 (8... c6 9. Bb3 d5 {opens up the centre; Komodo11}) 9. Qe2 c6 10. O-O-O b5 (10... d5) 11. Bb3 a5 (11... Nc5) 12. a3 O-O (12... b4 13. a4 Nc5 {Komodo11}) (12... a4 13. Ba2 c5 14. Nh4 Nb8 15. c3 Nc6 16. Kb1 Rb8 17. Rhe1 b4 {Rudy & Komodo11 nudged ( ensures open lines against the Wh K, while not giving Wh anything to aim at on the K side}) 13. Rdg1 b4 ( 13... Nc5 14. Ba2 b4 {Komodo11 & Rudy} 15. Be3 bxa3 16. Bxc5 (16. bxa3 d5 17. Nxe5 Qd6 18. Bd4 Na4 $19 {Komodo11}) 16... axb2+ (16... dxc5 17. bxa3 c4 18. Bxc4 Bxa3+ $17) 17. Kb1 dxc5 18. Nxe5 Qc7 19. f4 c4 20. Nxc4 Rb8 $19) 14. a4 Nb6 (14... Nc5 {Rudy} 15. g4 Nxb3+ 16. cxb3 Nd7 17. Be3 d5 18. Kb1 Ba6 $19 { Komodo11}) 15. h3 (15. g4 {Wh must try open up lines to get anywhere} Nh7 16. h4 Kh8) 15... Nh7 16. g4 Be6 17. h4 Bxb3 18. cxb3 Nd7 19. g5 (19. h5 {to prevent Bl from closing things up with h5, allows a different barricade with} Ng5 {or} (19... Bg5)) 19... h5 20. Nh2 (20. g6 fxg6 21. Rxg6 {opens the G file after all, but then Bl gets plenty of counterplay along the f file} Nhf6 (21... Qe8 22. Rhg1 Rf7 23. Bh6 Bf6 24. Qd1 Nhf8 {and Bl has plenty of spare capacity arounfd her K})) 20... g6 {Bl has now closed up the K side, leaving Wh with few prospects especially for the B} (20... d5 {is Komodo11, who doesn't care much for caution} 21. Qxh5 dxe4 22. dxe4 Nc5 {arguing that an open centre is more than enough to resist any side attack. Humans would prefer to take away Wh counterplay & then leisurely prepare to roll forward in the centre & Q side (which is what happens here)}) 21. f4 exf4 (21... Nc5 {Komodo11} 22. f5 (22. Kc2 exf4 23. Bxf4 d5) 22... Nxb3+ 23. Kb1 Qd7 24. f6 Bd8 25. Be3 Rb8 26. Qd1 Qe6 27. Nf3 Bb6 $19) 22. Bxf4 Qb6 (22... d5) 23. Kb1 Rae8 (23... Rfe8) 24. Rc1 Qb7 25. Nf3 c5 (25... Nc5 26. Ka2 Ne6 27. Be3 c5 {Komodo11}) 26. Rhd1 Nb6 27. Qd2 Rd8 (27... c4) 28. Qe2 Rfe8 29. Nd2 Nf8 {bringing back all the pieces into play before opening up the position. Wh can only sit and wait.} 30. Qf2 Ne6 31. Be3 Bf8 {improving the B position as well} 32. Rf1 Bg7 33. Nf3 {(draw?)} Re7 ( 33... Nd7 34. Qc2 Ne5 {Komodo11}) 34. Rfd1 Rc8 35. Qg3 Rd7 (35... d5) 36. Rc2 d5 {prepares a Q side breakthrough} 37. e5 Rdc7 (37... Nxa4 {Komodo11 as usual goes for an immediate break} 38. Qf2 (38. bxa4 b3 39. Rcc1 Qb4 {and Wh has to give up more material to prevent immediate mate.} 40. Nd2 Qxa4 41. Nxb3 Qxb3 $19) 38... d4 39. Bd2 Nb6 40. Be1 a4 {and the Wh K's shelter is broken open}) 38. Rdc1 Nd7 {stronger now than} (38... Nxa4 {which still works according to Komodo11}) (38... c4 {at once also breaks resistance quickly}) 39. Qf2 Rc6 { to take e5 without allowing a pin by the B, but this is also fine for Bl} ( 39... Nxe5 40. Bf4 Nxd3) (39... c4 $1) 40. Qh2 c4 {the big push has arrived} 41. dxc4 dxc4 42. bxc4 b3 43. Rc3 Qb4 44. Bd2 Qxa4 0-1 [Event "DyfedLeague:AberystwythA-SteyntonB"] [Site "?"] [Date "2017.10.04"] [Round "?"] [White "Holman, Sam"] [Black "Greenwood, Ray"] [Result "1-0"] [ECO "C66"] [WhiteElo "1305"] [BlackElo "1179"] [Annotator "Rudy"] [PlyCount "87"] [EventDate "2017.10.05"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 (3... Nf6 4. O-O Ng4 5. h3 h5 6. d3 (6. c3) (6. d4) 6... Nf6 (6... Bc5 {continues the theme, as frequently played on the Internet by W. Krol.}) 7. Bxc6 dxc6 8. Nxe5 Bd6 9. Nf3 $18 {Orton-Greenwood, Dyfed League 2016,1-0}) 4. O-O Bd7 5. c3 Nf6 6. Re1 Ng4 $146 (6... Be7 {main}) 7. h3 (7. d4 $16 {Bl's 2nd move with the N may be best ignored; Komodo11}) 7... h5 {a sacrifice to enable the h file to open; similar to the Orton game & parallels in Ruy Lopez exchange lines} 8. d4 (8. hxg4 hxg4 9. g3 gxf3 10. Qxf3 Qe7 $15) 8... Qf6 9. d5 Nb8 10. Bxd7+ (10. Qb3 $1 $18 Qd8 11. hxg4 hxg4 12. Ng5 Qf6 13. Be3 (13. Ba4 b5 $11) 13... Qh6 14. Kf1 $18 {Komodo11}) 10... Nxd7 11. hxg4 {Wh may well do better by just ignoring the offered pice & waiting for it to go away} (11. Qb3 Qd8 (11... b6 12. Bg5 Qg6 13. Na3 a6 14. Qc4 Ra7 15. Nc2 $18) 12. Qxb7 $18 {Komodo11}) 11... hxg4 12. Ng5 (12. Nfd2 $1 {Komodo11} Qh4 13. Kf1 Qh1+ 14. Ke2 Qxg2 15. Rg1 Qh3 16. c4 g6 17. Qb3 O-O-O 18. Qxh3 gxh3 19. Nc3 $16) 12... Qh6 $11 13. Nh3 (13. Kf1 {Rudy} Qh5 $1 14. Be3 Be7 15. Nxf7 Kxf7 16. Ke2 g3+ 17. f3 Bg5 18. Na3 Nf6 $11 {Komodo11}) 13... Qh5 (13... Qg6 $1 { Komodo11; transposes to previos note by} 14. Ng5 Qh5 15. Kf1) 14. Re3 gxh3 ( 14... Be7 $1 15. c4 g6 16. Nc3 f5 17. Kf1 gxh3 18. Rxh3 Qxd1+ 19. Nxd1 Rxh3 20. gxh3 Kf7 $17 {Komodo11; Bl has a better pawn structure & slightly better placed pieces} 21. Nc3 Nc5 22. f3 Rh8 23. Kg2 Nd3 24. Be3 Bh4 {and Wh faces several threats}) 15. Qxh5 Rxh5 16. Rxh3 Rxh3 17. gxh3 {here Wh preferred his prospects arguing that the Bl B was an inferior piece, held in by its own pawns & hoping to be able to exchange off his B for the Bl N. However according to Komodo11 Bl can generate more active play than in the game} O-O-O {Not the best, as it removes the K far away. In the nearness of an ending, Ks, like other pieces, are better placed in the centre for activity- the diminution of pieces leaves them less likely to be caught in a mating net.} ( 17... Nc5 $1 18. f3 (18. Nd2 g6 19. b4 Na4 20. c4 a5 $17 {activates the R on the Q side}) 18... Be7 19. Na3 Kd7 20. Be3 Nd3 21. Nc4 Rh8 22. Kg2 Bh4 { is similar to the var at move 14.}) 18. Bg5 {provoking another pawn onto the colour of the the Bl B- but Bl should ignore the provocation} f6 $6 (18... Re8 19. Nd2 Be7 20. Be3 g6 21. Kg2 Rh8 22. Rg1 a6 23. a3 Rh5 $15 {similar to earlier notes}) 19. Be3 $11 b6 (19... Be7 20. Kh2 (20. Bxa7 $2 b6 {traps the B} ) 20... Rh8 21. Nd2 g6 22. Rg1 Nf8 (22... f5 23. Rxg6 f4 24. Bxa7 b6 25. Rg7 Re8 26. Nc4 Kb7 27. Bxb6 Nxb6 $15 {Komodo11; is one of those computer lines in search of a complexity most humans avoid}) 23. f4 exf4 24. Bxf4 Rh5 25. Be3 a6 26. c4 c5 27. b3 Kd7 $11 {Komodo11; & Bl brings the K to f7 when there is little real activity left for either side}) 20. b4 Be7 21. Nd2 Rg8 {a rather passive posting} (21... f5) (21... g6) (21... Rh8) 22. Kh2 g5 (22... g6 { keeps the pawn structure more cohesive & keeps a N out of f5.}) 23. Rg1 (23. Kg3 Rh8 24. Nf3 $14 f5 25. exf5 Nf6 26. c4 Ne4+ 27. Kg2 Rf8 28. Nh2 Rxf5 $11 { Komodo11}) 23... Nf8 24. b5 {closing up the Q side, however this cuts down on Wh options of perhaps a break with c5 eventually. However a5 remains a possibilty} Nd7 25. Nf3 (25. Nf1 Nf8 26. Ng3 Ng6 27. Nf5 {occupying the weak square} Kd7 28. a4 Bd8 29. a5 $14 {Komodo11}) 25... Rh8 26. a4 Kb7 (26... Nf8) 27. c4 (27. Kg3 Rf8 28. a5 bxa5 29. Ra1 Nb6 30. Rxa5 f5 31. exf5 Nxd5 (31... Rxf5 32. c4 Rf7 33. Nd2 $14) 32. Rxa7+ Kb8 (32... Kc8 33. Ra8+ Kd7 34. Rxf8 Bxf8 35. c4 $18) 33. Ra3 Rxf5 34. c4 Nf4 35. Kg4 Rf8 36. Ra2 Rh8 37. Bxf4 gxf4 38. h4 $14 {Komodo11}) 27... Nf8 28. Nd2 (28. a5 $1 Kc8 29. a6 Rh5 30. Ne1 Ng6 31. Nd3 Bf8 32. Nb4 Ne7 33. Rg4 Kd7 34. h4 Ke8 35. Nc6 $16 Nxc6 36. bxc6 Rh8 37. Kg3 gxh4+ 38. Rxh4 Rg8+ (38... Rxh4 39. Kxh4 Be7 40. Kh5 Kd8 (40... Kf7 41. Bxb6 $18) 41. Kg6 $18 {Komodo11})) 28... Ng6 29. f3 {anticipating that Bl will play Nh4, Wh tries to swap it off with his B. However all of the Wh pawns are on wh squares, where the Bl B can't take them; but nore can the Wh B protect them from the Bl N.} (29. a5 Nh4 $11) 29... Nh4 (29... a5 $11 {Komodo11}) 30. Bf2 Ng6 31. Nf1 $6 {Wh has misjudged the position, & has arranged his pieces on squares where they interfere with each other.} (31. Be3 $11) (31. Bg3 { covers both f4 & h4} Rf8 (31... a6 $11) 32. Nf1 {trying to get to f5, but Bl gets in first} f5 33. exf5 Rxf5 34. Nd2 a6 $11 {Komodo11}) 31... Nf4 {now the N can penetrate to Wh's Q side, if it wishes} 32. Rg3 Ne2 (32... Nd3 {Rudy, may be a better try for more than equality} 33. Be3 Nb2 {attacking 2 pawns} 34. Rg2 (34. Nd2 Nxa4 $15) 34... Nxc4 (34... Nxa4 35. Ng3 Nc5 36. Bxc5 dxc5 37. Nf5 Bd6 38. Ra2 Ra8 39. Ra6 $11 {Komodo11; neither side can break through}) 35. Re2 Na5 36. Ng3 Nb3 37. Nf5 Bf8 38. Ra2 a6 39. bxa6+ Kxa6 40. Ra3 Nc5 41. Kg2 $11 { again , it looks like deadlock}) 33. Rg2 Nc3 {given the above note, it looks like Bl's simplest is to force a draw with} (33... Nf4 34. Rg3 Ne2 (34... a5 { also seems drawn, but forcing wh to defend the h3 pawn is easier}) 35. Rg4 Nf4 36. Rg3 $11 (36. h4 Nd3 37. Kg1 a5 38. Ne3 Nb2 39. Nf5 Rh7 40. Kf1 Nxa4 $15)) 34. a5 $16 {fortunately for Wh, there is this resource available} bxa5 (34... Ne2 35. Be3 Nf4 36. Bxf4 gxf4 37. Rg7 Bf8 38. a6+ Kc8 39. Rf7 Kd8 40. Rxf6 $18 {although there are still major technical difficulties in forcing the h pawn through to Q}) 35. Be1 a6 $2 {missing the point of Wh's last move} (35... Na4 36. Ne3 (36. Bxa5 Nc5 37. Ne3 $16) 36... Ra8 (36... Nc5 37. Bxa5 Ra8 38. Nf5 Bd8 39. Bd2 a6 40. bxa6+ Rxa6 41. Be3 Kc8 42. Bxc5 dxc5 43. Kg3 Ra1 44. Rc2 $14 {and Wh is clearly superior, but it will take some time to establish if there really is a win.}) 37. Bxa5 a6 38. bxa6+ Rxa6 39. Be1 Nc5 40. Nf5 Bf8 41. h4 gxh4 42. Rg8 Nd7 43. Rh8 Ra4 44. Nxh4 f5 45. Nxf5 Rxc4 46. Rh7 $16) 36. Bxc3 $18 (36. bxa6+ Kxa6 37. Bxc3) 36... axb5 37. cxb5 Kb6 38. Rb2 (38. Ne3) 38... Ra8 39. Ne3 a4 40. Rb1 (40. Nc4+ Kc5 41. Rb4 a3 42. b6 cxb6 43. Nxb6 Ra7 44. Na4+ Rxa4 45. Rxa4) 40... a3 41. Nc4+ Kc5 (41... Kb7 42. Ra1 $18) 42. Nxa3 $1 Rf8 (42... Rxa3 43. Bb4+) 43. b6 cxb6 (43... c6 44. b7 (44. Bb4+ Kd4 45. dxc6)) 44. Rb5# 1-0