Sunday, 11 November 2018

Ruthless Streak

It is still very early in the season, but the Aberystwyth team looks to have a ruthless streak about it at the moment. Steynton A were competitive in every game at the Emlyn Cafe, Tanygroes on Monday 29th October but Aber scored another whitewash. Rudy van Kemenade won a pawn in a Reti against Martin Jones, and kept control of the endgame, though Black missed the chance to transpose into a drawish rook-and-pawn position. Adam Watkin-Jones had a complex struggle against David Pinch in a Modern / London hybrid opening, until White suddenly blundered, handing him a rook with mate to follow. Julie van Kemenade's King's Indian Attack against John Miller's French was also double-edged, with both sides having vulnerable kings, but White's attack proved more dangerous. Finally, James Cook could not find a way through in a major-piece battle against Scott Hammett's Bird's Opening, and offered a draw, which White should have accepted, as the position opened up for Black a couple of moves later. Another 4-0 win for Aber.

Meanwhile the club championship has started, and the first game was a solid positional win for Dan Hardman against Francis Headley in a King's Indian Defence.

[Event "Dyfed League:SteyntonA-Aberystwyth"] [Site "?"] [Date "2018.10.29"] [Round "?"] [White "Van Kemenade, R."] [Black "Jones, Martin C"] [Result "1-0"] [ECO "A05"] [WhiteElo "2023"] [BlackElo "1755"] [Annotator "kemen"] [PlyCount "94"] [EventDate "2018.11.02"] 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O c5 (4... O-O) 5. d3 Nc6 6. c4 (6. e4) (6. Nbd2) 6... d5 (6... O-O) 7. cxd5 (7. Nc3 d4 (7... dxc4 8. dxc4 O-O 9. Be3 { if Wh is playing for a miniscule edge}) 8. Na4 {is a Reversed Yugoslav King's Indian}) 7... Nxd5 8. Nc3 (8. a3) (8. Qc2) 8... Nxc3 (8... O-O {transposes to 600 + games}) 9. bxc3 O-O {after some thought, Bl decines} (9... Bxc3 10. Rb1 { 4 Wh wins, 1 draw, 3 Bl wins} O-O (10... Bg7 11. Qc2 Qd6 12. Be3 (12. Ba3 { Martin & Komodo12}) 12... b6 13. Bf4 Qd7 14. d4 c4 (14... Qf5 15. e4 Qh5 16. dxc5 Qxc5 17. Qxc5 bxc5 18. Rfc1 $14 (18. e5 $14 {Komodo12})) 15. Rfd1 $16 { Speelman-Ady, Commonwealth ch, London 1985,1-0}) 11. Qa4 Qa5 12. Qc4 (12. Qxa5 Bxa5 13. Be3 $11) 12... Bf6 13. Bd2 Be6 14. Qxe6 fxe6 15. Bxa5 Nxa5 16. Nd2 Rab8 17. Bh3 Kf7 18. Ne4 b6 19. Kg2 Nc6 20. Rbc1 Rbd8 21. f4 Nd4 22. Rfe1 h6 $17 {Kramnik-Mamedyarov, Geneve Masters KO Rapid 2013,1/2-1/2}) 10. Be3 { Cloud Engines} (10. Qb3 {transposes to some 40 games}) (10. Qc2 {to some 20}) ( 10. Rb1 {8 games incl Kramnik-Mamedyarov}) 10... Qd6 (10... b6 11. d4 Bb7 12. dxc5 Na5 (12... bxc5 13. Rb1 Qxd1 14. Rfxd1 Ba6 15. Bxc5 Bxe2 16. Re1 Bxf3 17. Bxf3 Rac8 18. Bxe7 Nxe7 19. Rxe7 Rxc3 20. Bd5 $14 {Komodo12}) 13. Qa4 bxc5 14. Rfd1 Bc6 15. Qa3 Qc7 16. Qxc5 $14 {Diamant-Molner, USA tt ICC-INT 2012, 1/2-1/2 }) (10... Bxc3 11. Rc1 Qa5 12. Nd2 Be6 13. Ne4 Bb2 14. Rc2 Bd4 15. Nxc5 Bxe3 16. Nxb7 Qe5 17. Rxc6 Bb6 18. e3 Bxa2 19. Qa4 Be6 20. d4 $14 { Anastasian-Shirov, Frunze op 1989,1-0}) 11. Nd2 Bf5 (11... b6 12. d4 $11 { Komodo12}) 12. Nc4 (12. Rc1 b6 13. Qa4 Rac8 14. Rfe1 $11 {Komodo12}) 12... Qd7 13. Bxc5 Bxc3 14. Rb1 (14. Rc1) 14... Rab8 15. Ne3 (15. Qa4 Bh3 16. Bxh3 Qxh3 17. Rfc1 Bg7 18. Nd2 Rfc8 $11 {Komodo12}) 15... Be6 (15... Bh3 16. Bxh3 Qxh3 17. Nd5 $14 {considered by both}) 16. Rc1 (16. d4 {briefly considered by Wh} Nxd4 17. Bxa7 Bxa2 18. Rc1 Bb2 19. Rc2 Bb3 20. Qb1 (20. Bxb8 Rxb8 21. Qd3 Bxc2 22. Nxc2 Qa4 $15) 20... Bxc2 21. Qxb2 Nxe2+ 22. Kh1 Bd3 23. Bxb8 Rxb8 24. Rd1 Qb5 25. Qa3 Bc4 26. Qxe7 Be6 27. Qf6 $11 {Komodo12}) 16... Bd4 (16... Bg7 17. Re1 Rfc8 18. Qa4 Rc7 $15 {Komodo12}) 17. Bxc6 {Komodo12} (17. Qa4 $11) (17. Bxd4 Nxd4 18. Nc2 Nb5 19. Qd2 Rfc8 20. Ne3 Nd4 $11) 17... bxc6 18. Bxd4 Qxd4 19. Rxc6 Bxa2 {Komodo12 doesn't like getting the pawn back this quickly} (19... Rb2 20. Qa1 (20. Rc2 Rfb8 21. Qa1 Qg7 22. Rfc1 h5 23. a4 a5 $14) 20... Rd8 21. Rc2 Rxc2 22. Qxd4 Rxd4 23. Nxc2 Ra4 24. Ra1 Rxa2 (24... Bxa2) 25. Rxa2 Bxa2 26. Nb4 Be6 27. Nc6 Bd7 28. Nxa7 $11 {though the N is trapped} Kf8 29. Kg2 Ke8 30. d4 Kd8 31. d5 Kc7 32. Kf3 e6 33. Nc6 Kd6 34. Nb4 exd5 35. Ke3 $11 {Komodo12}) 20. Qa1 $16 Qxa1 (20... Qd7 21. Rfc1 Be6 22. Rc7 Qd6 23. Rxa7 $16) (20... Rb2 21. Rc2 $1 {Komodo12} (21. Nd1 {seen by both players} Bd5 {missed} 22. Ra6 Rb4 23. Qxd4 Rxd4 24. Rxa7 $16) 21... Rfb8 22. Nd1 R2b4 23. Qxd4 Rxd4 24. Rxa2 $18 {Komodo12}) 21. Rxa1 Rb2 22. Rc2 Rxc2 (22... Rfb8 23. Rxa2 $18 {had been foreseen by Wh going into Bxc6, realised now by Bl that could not be played}) 23. Nxc2 Bb3 24. Nd4 {missed by Bl, again seen earlier by Wh} Bd5 25. Rxa7 $16 e5 {a strong move, which allows Bl to swap of a pair of pawns before Wh can stabilize his position} (25... e6 {not as good}) 26. Ra5 (26. Nb5 {in retrospect better, though Wh needs to be careful} Rb8 (26... Ra8 {Komodo12 plumps for this, though in the longrange Bl has better survival chances in a R & P ending} 27. Rxa8+ Bxa8 28. f3 $16 {the stability of the pawns helps the N rather than the B}) 27. Nc3 Bc6 28. Rc7 Bb7 29. f3 $16) (26. Rd7 Ba8 27. Nb3 Rb8 (27... e4 28. d4 $16) 28. Nd2 (28. f3 Bxf3 29. exf3 Rxb3 $11) 28... Kg7 29. Kf1 Rb2 30. Ke1 $16 {Komodo12}) 26... Rd8 27. Nc2 (27. Nb5 {again better} e4 28. dxe4 Bxe4 29. f3 Bf5 30. Kf2 $16) 27... e4 28. Nb4 (28. dxe4 Bxe4 29. Ne3 Rd2 30. Kf1 Kg7 31. f3 Bb1 32. Ke1 Rb2 33. Nc4 Rc2 34. Nd6 Rc6 35. Rd5 Ba2 36. Rd2 Be6 37. Kf2 $16 {Wh must keep Ns on but hope to swap Rs}) 28... exd3 29. Nxd3 Be4 30. Ra3 (30. Ne1 Rd1 31. Kf1 Bg2+ $1 32. Kxg2 Rxe1) 30... Rb8 (30... Bxd3 {is simplest route for Bl}) 31. f3 Bf5 (31... Bxd3 32. Rxd3 {Rook and Four Pawns vs Rook and Three Pawns. 'This is one of the best-known problems in endgame theory:is the attacker winning? Theoretically the answer is no, but in practice it is not at all easy to defend.First of all it must be sressed that just waiting passively is not sufficient' Mueller & Lamprecht- Fundamental Chess Endings 2001:212. They cite a game won by Botwinnik & one lost by Kasparov . Fine 1941 cites 2 wins by Capablanca. So Bl should have taken the chance given to him.} (32. exd3 Rb2 {is even less likely to manage to convert the extra pawn})) 32. e4 Rb1+ 33. Kf2 Be6 34. h4 h5 {all the pawns on the same colour as the B- Wh needs to come in using the bl squares} (34... h6) 35. Ke3 Kg7 36. Kf4 Rb3 {helps Wh , who now need not worry about the safety of his g & h pawns} (36... Bc4 37. Ne5 Be6 {and Komodo12 is rather clueless about what to do, spending all its move just waving the N about.} 38. g4 (38. Rc3 Ra1 39. Nd3 Bd7 40. Nc5 Rd1 41. Ke5 Bb5 42. f4 Be2 43. Ra3 Bc4 44. Ra7 Rg1 45. Kd4 Bb5 46. Ne6+ Kf6 47. Ng5 Rd1+ 48. Kc5 Bd7 49. e5+ Kg7 {Wh is trying to get access to f6 for K or N, or getting a passed e pawn} 50. Rc7 Kf8 51. Nh7+ Kg7 52. Nf6 Be6 53. Ra7 Rd3 54. Ne4 Bf5 55. Ng5 Bd7 56. Kc4 Rd1 57. Kc3 Kg8 58. Kc2 Rd4 59. Ra3 Bf5+ 60. Kc3 Rd3+ 61. Kb4 Rd7 62. Ra6 Rc7 63. Kb5 Rd7 64. Rf6 Kg7 65. Kc6 Re7 66. Nf3 Bc8 67. Nd4 Ra7 68. f5 Ra4 69. Kc5 Ra5+ 70. Kd6 Ra4 71. Kd5 Bb7+ 72. Kc5 Ra5+ 73. Kd6 Bh1 74. fxg6 Rd5+ 75. Kc7 Rxd4 76. gxf7 Kf8 77. e6 {and this position Komodo12 does accept is winning for Wh} Re4 78. Kd6 Rd4+ 79. Ke5 Rd5+ 80. Kf4 Rd4+ 81. Kg5 Rd5+ 82. Kh6 Re5 83. Rg6 $18 {long drawnout, with Komodo12 constantly nudged, involves several plausible lines of continuation.}) 38... Rh1 39. Kg3 hxg4 40. fxg4 (40. Nxg4 Bxg4 41. Kxg4 {assures the draw, one pawn less all on the same side is easy to hold}) 40... Rg1+ 41. Kf4 f6 42. Ra7+ Kg8 (42... Kh6 $2 43. g5+ fxg5+ 44. hxg5+ Rxg5 45. Re7 Ba2 46. Ng4+ Rxg4+ 47. Kxg4 {and with a passed pawn the R beats the B}) 43. Nc6 Rxg4+ 44. Kf3 f5 $11 ( 44... Rxh4 45. Ne7+ {wins the R}) 45. exf5 Bxf5 46. h5 Rg5 (46... gxh5 47. Ne7+ Kg7 48. Nxf5+ Kf6 {also draws, as the Bl K is not stuck on the back rank}) 47. Ne7+ Kf8 48. h6 Rh5 49. Nxf5 Rxf5+ 50. Kg4 Kg8 51. Rg7+ Kh8 52. Rxg6 Rf1 $11 ( 52... Ra5 $11)) 37. Rxb3 Bxb3 38. Ke5 {the B & K are unable to hold the bl squares against an advanced K & agile N} f6+ {this attempt helps Wh obtain a passed e pawn} (38... Bd1 39. f4 Bc2 40. Nb4 Bb1 41. Kd4 (41. Nd5 f5 42. Nf6 fxe4 43. Nxe4 Kf7 44. Nd6+ Ke7 45. f5 gxf5 46. Nxf5+ Kf7 {is a clear win- Lomonosov table bases ( a Stockfish8 has also exhaustively examined this position to a win)- Wh puts a N on f4, then outmanouvres the Bl pieces crowded in defence} 47. Ne3 Kg6 48. Ng2 Kh6 49. Nf4 Ba2 50. Kf6 Bc4 51. Ne6 Be2 52. Nd4 Bc4 53. Nf5+ Kh7 54. Kg5 Bd3 55. Ne3 Bg6 56. Ng2 Be8 57. Nf4 {to give one possible line by Rudy}) 41... f5) 39. Kd6 (39. Kd4 {perhaps}) 39... Bc4 40. Nf4 (40. Nc5 $18 {is much simpler}) 40... Kf7 41. Nd5 Be2 (41... Bd3 {holds up the pawn advance, but not for long} 42. Nc3 g5 43. f4 $18) 42. f4 $18 Bf3 43. e5 fxe5 44. fxe5 Bg4 45. Nf4 (45. Nc7 {again is more accurate, as it controls the queening square}) 45... Bf5 46. e6+ Ke8 47. Nd5 Bc2 {and Bl resigned while Wh was checking whether Nf6ch ( the N might get lost but it doesn't matter much or Nc7ch was best} 1-0 [Event "Dyfed League: Steynton A- Aberystwyth"] [Site "?"] [Date "2018.10.29"] [Round "?"] [White "Pinch, David"] [Black "Watkin-Jones, A."] [Result "0-1"] [ECO "A40"] [WhiteElo "1718"] [BlackElo "1940"] [Annotator "kemen"] [PlyCount "72"] [EventDate "2018.??.??"] 1. d4 g6 2. Bf4 Bg7 3. e3 d6 4. c3 Nd7 5. Nf3 e5 6. Bg5 {1 Wh win,6 draws & 13 Bl wins} (6. dxe5) (6. Bg3 {main lines}) 6... Ne7 {main} 7. Be2 (7. Nbd2 {main} ) 7... O-O 8. O-O {perhaps a little early, given that the Bl forces are ready to move forward in this area} (8. Na3 f6 9. Bh4 Nf5 10. Bg3 Nxg3 11. hxg3 c6 12. dxe5 Nxe5 13. Qb3+ Nf7 14. O-O-O Qe7 $11 {Wagenaar-Maes, NATO ch tm, Stetten Am Kalte Markt , 1999 ,1/2-1/2}) (8. Qc2 h6 9. Bh4 f5 10. Bxe7 Qxe7 11. Nbd2 Nb6 12. h3 Be6 13. Nh2 exd4 14. cxd4 f4 $17 {Nomalungelo-Sherif, Batumi ol women 2018,0-1}) 8... h6 (8... f6 {Stockfish9 & Komodo12}) 9. Bh4 (9. Bxe7) 9... Qe8 (9... g5 10. Bg3 f5 11. dxe5 dxe5 $11 {Rudy & Stockfish9}) (9... e4 10. Nfd2 g5 (10... Qe8) 11. Bg3 f5 $11 {Komodo12} (11... Nf6)) 10. dxe5 dxe5 11. e4 g5 12. Bg3 Ng6 $11 13. Ne1 (13. Nbd2) 13... Nc5 $17 14. Qd5 Qe7 $17 { Komodo12} (14... Ne6 15. Nd3 c6 16. Qb3 (16. Qd6 b6 17. Rd1 (17. Nd2 Ba6 18. c4 c5 19. Nxe5 Rd8 $19 {Komodo12}) (17. Nxe5 Bxe5 18. Bxe5 Nxe5 $19 19. Qxe5 Nf4) 17... c5 $17 {Komodo12} 18. Nxe5 Nef4 19. Bxf4 Nxf4 20. Bc4 Qxe5 $19) 16... Nef4 $17 {Rudy}) 15. Nd3 Nxd3 16. Qxd3 Nf4 17. Bxf4 exf4 {Bl has 2 good Bs & easier deployment} 18. Nd2 Re8 (18... Rd8 19. Qc2 g4 $17 {Komodo12 & Stockfish9 }) 19. Rfe1 Be6 $17 {Komodo12} (19... Bd7 $17 {Stockfish9}) 20. Qc2 c6 (20... g4 {both Engines}) 21. Rad1 b5 {giving Wh some targets on the Q side, when Bl's advantage lies in a K side attack} (21... g4 {Komodo12}) (21... h5 { Stockfish9}) 22. c4 (22. Nb3 $11 {Komodo12}) 22... a6 (22... b4 {Stockfish9, Komodo12 reckons this is =}) (22... Qb4 $15 {Komodo12}) 23. Nb3 Red8 (23... Rad8 $15 {both Engines}) 24. Na5 Rac8 25. Rxd8+ Qxd8 $17 26. b4 {Komodo12} (26. Nb3 {Stockfish9}) 26... c5 $6 (26... Qe7 {Stockfish9} 27. c5 g4 $15) (26... Qf6 27. Rd1 g4 $17 {Komodo12}) (26... Qd4 27. Rd1 Qc3 28. Qxc3 Bxc3 29. a3 c5 $15 { Komodo12}) 27. Rd1 {both players running low on time} (27. Nb7 $1 $11 {Iolo & both Engines} Qb6 28. Nxc5 bxc4 (28... Rxc5 29. bxc5 Qxc5 30. Rc1 $16 {pm analysis}) 29. Rd1 (29. Nxe6 {Komodo12 & Rudy} Qxe6 30. h3 $11) 29... c3 30. Bxa6 Rxc5 31. bxc5 Qxa6 32. Rd8+ Bf8 (32... Kh7 33. e5+ $18) 33. Qxc3 Qxa2 34. h3 f3 $11 {Komodo12}) 27... Qb6 $17 {both Engines} 28. Qd2 (28. Nb3 {both Engines} cxb4 29. c5 Bxb3 30. axb3 Rxc5 31. Qd2 Be5 $17 {Komodo12}) 28... bxc4 (28... cxb4 29. Qxb4 Bf8 $19 {both Engines}) 29. Nxc4 {Stockfish9} (29. Bxc4 { Komodo12}) 29... Qxb4 30. Qc2 Rb8 (30... Qc3 31. Qa4 Bd4 32. Qxa6 Rb8 $19 { Komodo12, going for the K side once more}) 31. Rc1 (31. e5 $15 {Komodo12-gains a bit of space for Wh & keeps the barricade of the bl pawns} Bxc4 32. Bxc4 $14 Bxe5 $2 33. Qg6+ Bg7 34. Bxf7+ Kh8 35. Bb3 $16) 31... Bd4 $19 {both Engines} 32. Nd2 Qa3 33. Nc4 (33. Nb3 $5 {both Engines} Bxb3 34. axb3 Rxb3 35. Rb1 Rxb1+ 36. Qxb1 Kg7 $19) 33... Bxc4 34. Qxc4 Rb4 35. Qxa6 $2 (35. Qc2 Rb2 36. Qd3 Qxd3 37. Bxd3 Rxf2 38. Kh1 Rxa2 $19) 35... Qxc1+ 36. Bf1 Qe1 (36... Bxf2+ {Komodo12} 37. Kh1 (37. Kxf2 Qe3#) 37... c4 38. Qc8+ Kg7 39. h4 Bg3 40. Kg1 Rb1 {and Wh has a few spite checks left before mate.}) 0-1 [Event "Dyfed League:SteyntonA-Aberystwyth"] [Site "?"] [Date "2018.10.29"] [Round "?"] [White "Van Kemenade, J."] [Black "Miller, John S"] [Result "1-0"] [ECO "A04"] [WhiteElo "1755"] [BlackElo "1629"] [Annotator "kemen"] [PlyCount "87"] [EventDate "2018.11.03"] 1. e4 e6 2. d3 c5 3. g3 (3. f4 Nc6 4. Nf3 d6 5. Be2 {Van Kemenade-Miller,Dyfed League jan 2018,1-0}) 3... Nc6 4. Nf3 g6 {turning the French into a Closed Sicilian} 5. Bg2 Bg7 6. O-O d6 7. Re1 Nge7 8. c3 e5 9. Nbd2 (9. a3 {to loosen the centre grip with b4}) (9. Be3 {aiming for d4}) 9... O-O 10. Nf1 h6 {main} 11. Ne3 {main} (11. Be3 f5 12. Qd2 Kh7 {& results favour Bl}) 11... Be6 12. Nh4 g5 $6 {not a good idea as it weakens f5 & other wh squares} (12... d5 $11 { main- the results favour Bl, but somehow the Bl player was also much higher rated}) 13. Nhf5 $16 Bxf5 14. exf5 d5 15. Qf3 {Fritz15} (15. Qh5 {Komodo12}) 15... e4 {hoping to distract Wh from the K side} 16. dxe4 Ne5 17. Qh5 $18 d4 18. cxd4 (18. Rd1 Qb6 19. f4 $1 {Komodo12} dxe3 20. fxe5 e2 21. Qxe2 Bxe5 22. Be3 $16) 18... cxd4 19. Ng4 (19. Rd1 Qb6 20. Ng4 $16 {Komodo12}) 19... Nxg4 20. Qxg4 Nc6 21. f4 f6 {more weaknesses on the wh squares & doesn't do much for the B} (21... d3 {Fritz15 & Komodo12- Bl must keep pushing in the centre to maintain his K side} 22. Rd1 Bxb2 23. Bxb2 Qb6+ 24. Kh1 Qxb2 25. e5 $16 Qe2 26. Bf3 Qe3 27. Qh5 d2 28. Bg2 $16) 22. Bd2 $18 (22. e5 $1 $18 {Rudy- Fritz15 & Komodo12} fxe5 23. fxg5 hxg5 24. Bxg5 Qd7 25. Be4 {Bl has no play because his bl square pawns get in the way, while Wh gets on to bring more reserves to bear onto the K eg} Rf7 26. Bd3 (26. Qf3) 26... Ne7 27. Bxe7 Qxe7 28. Bc4 (28. Rac1)) 22... Qd7 23. Qe2 (23. e5 fxe5 24. fxg5 Qxf5 25. Qxf5 Rxf5 26. gxh6 $18 {Komodo12}) (23. Bf1 d3 24. Re3 Qd4 25. Bxd3 $18 {Komodo12}) 23... Rad8 (23... d3 24. Qe3 Rfd8 25. Rad1 Bf8 26. e5 $18 (26. Qf2 $18 {Komodo12})) (23... Rfd8) 24. Qc4+ (24. Qd3 $18 {Komodo12}) 24... Qf7 25. Qxf7+ (25. Bf1 $18 {Rudy & Komodo12}) 25... Rxf7 (25... Kxf7 26. Bf1 $18) 26. Bf1 (26. Rac1 $16) (26. e5 fxe5 27. fxg5 hxg5 28. Bxg5 Bf6 29. Bd2 d3 30. Be4 $16 {Komodo12}) 26... d3 27. Re3 Rfd7 28. Rc1 Bf8 29. a3 $16 a5 (29... Bd6 {Komodo12} 30. Rxd3 gxf4 31. gxf4 Bxa3 32. Rxd7 Rxd7 33. Bc3 Bc5+ 34. Kg2 Be3 35. Rc2 Bxf4 36. Bxf6 $16) 30. Rc3 $18 gxf4 31. gxf4 Nd4 32. Rg3+ (32. Rcxd3 Bc5 33. Kh1 Nxf5 34. exf5 Bxe3 35. Rxd7 Rxd7 36. Bxe3 $18 {Komodo12- the 2 Bs normally are better than a R, but a little unclear here} Re7 37. Bb6 Kg7 38. Kg2 a4 39. Kf2 Rd7 40. Ke3 Re7+ 41. Kd3 Re1 42. Bg2 Rd1+ 43. Ke3 Rc1 44. Be4 Re1+ 45. Kd3 Rd1+ 46. Kc3 Re1 47. Bxb7 Re2 48. Bg1 Re1 49. Bf2 Re2 50. Bg3 {and Wh is slowly making progress}) 32... Kh7 33. Bxd3 (33. Rcxd3 {a little easier as Wh keeps the 2 Bs}) 33... Ne2+ 34. Bxe2 Rxd2 35. Bh5 (35. Rc7+ $18 {Komodo12} R8d7 (35... Kh8 36. Bc4 Bd6 37. Rxb7 Rc2 (37... Bxf4 38. Rgg7) 38. Bd5 Rdc8 39. Rgg7 R2c7 40. Rbxc7 Rxc7 41. Rg8+ Kh7 42. e5 fxe5 43. f6 $18 {Komodo12}) 36. Rxd7+ Rxd7 37. Kf2 Bc5+ 38. Kf3 a4 39. e5 $18 {Komodo12}) 35... Rxb2 {trying to mate while grabbing pawns} (35... Bd6 $1 {Komodo12 may hold} 36. Rb3 (36. Rgf3 Rxb2 37. Rfd3 Bc5+ 38. Kh1 Rxd3 39. Rxd3 a4 40. e5 Rb1+ 41. Kg2 Rb2+ 42. Kf3 Rb3 43. Ke4 Rxd3 44. Kxd3 Bxa3 45. Be8 Bc1 46. Bxa4 Bxf4 47. e6 Bd6 48. Ke4 Kg7 49. Kd5 Ba3 50. Kc4 Kf8 51. Kb5 Bd6 52. h3 Bc7 53. Bc2 Ke7 54. Be4 b6 55. Kc6 Bg3 56. Kxb6 Bd6 {draw- Wh cannot force the Bl K to move}) 36... b6 37. Rg2 Bxf4 38. Kf1 Bxh2 39. Rxd2 Rxd2 40. Rxb6 Be5 41. Rb7+ Kh8 42. b4 axb4 43. axb4 Rd4 44. Bf3 Rc4 45. Ke2 Rc2+ 46. Ke3 Rc3+ 47. Kf2 Bd4+ 48. Kg3 Be5+ $11 {as Wh has to stay protecting the B} 49. Kg4 $2 h5+ $19) 36. Rcd3 (36. Kh1 $1 $16 {Komodo12} Rb1+ (36... Rdd2 37. Rc7+ Kh8 38. Rc8 Kh7 (38... Rxh2+ 39. Kg1 Rxh5 40. Rxf8+ Kh7 41. Rf7+ Kh8 42. Rc3 {and Bl gets mated}))) 36... Rxd3 37. Rxd3 Bc5+ 38. Kh1 b6 {playing safe(guarding B & P) is not always the best} (38... a4 {is better according to both Engines, as it provides a support for the Bl R} 39. Rd7+ {must be played at once if Wh is to have any winning chances} (39. e5 Rb1+ 40. Kg2 Rb2+ 41. Kf3 Rb3 42. Ke4 Rxd3 43. Kxd3 Bxa3 44. Be8 Bc1 45. e6 Kg7 46. Bxa4 Kf8 {and Bl blockades as in a previous note}) 39... Kg8 (39... Kh8 40. e5 Bxa3 41. exf6 Bf8 42. Rd8 Kg8 43. f7+ Kg7 44. f6+ $18) 40. e5 Rb6 (40... Bxa3 41. Bf7+ Kf8 42. exf6 $1 Rb6 43. Be6 $18) 41. Rd8+ Kg7 42. e6 Bxa3 43. Rd7+ Kf8 (43... Kg8 44. Kg2 (44. e7 Bxe7 45. Rxe7 a3 46. Bf3 Rb2 47. Bd5+ Kf8 48. Rf7+ Ke8 49. Rxf6 h5 50. Rf7 a2 51. Bxa2 Rxa2 52. Rxb7 Rf2 53. Rh7 Rxf4 54. Rxh5 Kf7 {is drawn}) 44... Bb4 45. e7 (45. Rd8+ Kh7 46. Ra8 a3 $11) 45... Bxe7 46. Rxe7 a3 47. Bf7+ Kf8 48. Rc7 Rb2+ 49. Kg3 a2 (49... b5 50. Be6 b4 51. Ra7 Ke8 52. h3 Kd8 53. Kg4 $18) 50. Bxa2 Rxa2 51. Rxb7 h5 52. Rh7 Rb2 53. Rxh5 Kg7 54. Kg4 Rb3 55. Rh3 Rb2 56. Kh4 Rf2 57. Kg3 {still looks drawn as neither the K nor thr R can get active} (57. Kg4 Rb2))) 39. Bg6+ (39. e5 Rf2 40. e6 Rxf4 41. Rd7+ Kh8 42. e7 Bxe7 43. Rxe7 Rxf5 44. Be2 b5 45. Rb7 b4 46. axb4 axb4 47. Rxb4 {and with the last pawn, wh will have great trouble winning- if Rs come off, its a draw as the B fails to control the Queening square}) 39... Kg7 40. Rd7+ Kf8 (40... Kg8 41. Rd8+ Kg7 42. e5 Bxa3 43. Rd7+ Kg8 44. exf6 $18 Rc2 45. Rg7+ Kh8 (45... Kf8 46. Rh7 Kg8 47. f7+ Kf8 48. f6 {mating net}) 46. Rh7+ Kg8 47. f7+ Kf8 48. f6 { the same}) 41. Rf7+ Kg8 (41... Ke8 {running away seems to hold} 42. Rxf6+ Kd8 43. e5 Bxa3 44. Re6 Kc7 (44... Rf2 45. Rxb6 Kc7 46. Ra6 Bb4 47. e6 Rxf4 48. Ra7+ Kb6 49. Rd7 Re4 50. Kg2 (50. Bf7 Rf4 51. e7 Bxe7 52. Rxe7 Rxf5 {will draw} ) 50... a4 51. Rd1 a3 52. Kf3 Re5 53. Kf4 Bc3) 45. f6 Rf2 46. f5 Bc5 47. Re8 a4 48. Ra8 a3 49. e6 Bd6 50. h3 Re2 51. e7 Bxe7 (51... Rxe7 52. Ra7+ Kd8 53. fxe7+ Bxe7 54. Bf7 $18) 52. fxe7 Rxe7 53. Rxa3 $18) 42. Rxf6 Be3 {trying to break the centre pawns} (42... Bxa3 {leads to all sorts of complex lines} 43. e5 Bc5 44. Rc6 Rf2 45. Rc8+ (45. e6 Be7 46. Rc7 Kf8 47. f6 Bxf6 48. Rf7+ Ke8 49. f5 $1 (49. Rxf6+ Ke7 50. Rf7+ Kxe6 51. Kg1 Rf3 52. Kg2 Rb3 53. f5+ Ke5 54. Re7+ Kf6 55. Re6+ Kg5 56. Bh7 $18)) 45... Kg7 46. Bh5 Rxf4 47. f6+ Kh7 48. Kg2 a4 49. Kg3 Rf1 50. Be2 Rg1+ (50... Rxf6 {Komodo12} 51. exf6 Kg6 52. Rc6 a3 53. Bd3+ Kf7 54. Bc4+ Kg6 55. Kf4 $18) 51. Kf4 Rg8 52. Rxc5 bxc5 53. Bd3+ Kh8 54. e6 $18 {Komodo12 nudged several times}) 43. Rc6 $18 Bxf4 (43... Bd4 44. e5 Rf2 45. e6 (45. f6 Rf1+ 46. Kg2 Rg1+ 47. Kf3 Rxg6 48. Rc8+ Kf7 (48... Kh7 49. f7 Bc5 50. Rxc5) 49. Ke4 Rxf6 50. Rc7+ Kg6 51. exf6 Bxf6 52. Rb7 Bd8 53. Rb8 Bc7 54. Rc8 $18) 45... Bf6 46. Rxb6 Be7 47. Rb7 Bh4 48. e7 Bxe7 49. Rxe7 Rxf4 50. Kg2 $18) 44. f6 (44. f6 Rb1+ {Iolo} 45. Kg2 Rc1 46. Re6 $1 {Rudy; best Komodo12} (46. f7+ Kg7 47. Rf6 Kf8 48. Rxf4 {Komodo12 also wins, but more slowly}) (46. Rxc1 Bxc1 {gives Wh winning chances as Wh has 2 passed pawns, but should be drawn with care} 47. a4 (47. Kf3 Bxa3 48. Kf4 {might just work as Wh has mating chances, but must avoid the B giving itself up for the 2 centre pawns} a4 49. e5 Bb4 50. e6 Kf8 51. Be4 Bc5 52. Ke5 a3 53. Bb1 h5 54. Kd5 h4 55. h3 Ke8 56. Ba2 (56. Kc6 a2 57. Bxa2 Bd4 58. f7+ Ke7 {draws}) 56... Kd8 57. Kc6 Ke8 { and Bl holds}) 47... Bb2 48. f7+ Kf8 49. Kf3 Be5 50. h3 b5 $1 51. axb5 a4 52. Bf5 Kxf7 53. Bd7 Ke7 54. Bc6 Kd6 55. Kg4 Kc5 56. Kh5 Bf4 $11 57. e5 $2 a3 $19) 46... Bd6 {just delays the inevitable} (46... Rc8 47. Re8+ $1 {Komodo12} (47. f7+ {Rudy} Kg7 48. Re8 Rc2+ 49. Kf3 Bd6 50. Rg8+ Kf6 51. e5+ Kxe5 52. Bxc2 Bxa3 53. f8=Q Bxf8 54. Rxf8 {is slower}) 47... Rxe8 48. f7+ Kg7 49. fxe8=Q) 47. Rxd6 Rc8 48. e5 Rf8 49. Rd7 b5 50. Rg7+ Kh8 51. Rh7+ Kg8 52. f7+ Rxf7 53. Rxf7 b4 54. e6 bxa3 55. e7 a2 56. e8=R#) 1-0 [Event "Dyfed League:SteyntonA-Aberystwyth"] [Site "?"] [Date "2018.10.29"] [Round "?"] [White "Hammett, S."] [Black "Cook, James"] [Result "0-1"] [ECO "A02"] [WhiteElo "1524"] [BlackElo "1491"] [Annotator "kemen"] [PlyCount "85"] [EventDate "2018.11.02"] 1. f4 Nf6 (1... d6 2. Nf3 Nf6 (2... g6 3. e3 Bg7 4. Nc3 e5 5. fxe5 dxe5 6. Be2 Ne7 7. O-O O-O 8. b3 b6 9. Bb2 Bb7 10. Na4 {Hammett-Haigh, Dyfed League 2016, 0-1}) 3. e3 c6 4. Be2 Nbd7 5. O-O Qc7 6. b3 e5 7. Ng5 h6 8. Nxf7 $5 {Hammett-J Van Kemenade,Dyfed League 2011,0-1}) 2. Nf3 d6 3. e3 g6 4. Be2 Bg7 5. O-O Nc6 6. Nc3 O-O 7. b3 (7. d3 {alternative}) 7... a6 (7... e5 {Cloud Engines} 8. fxe5 (8. d3 exf4 9. exf4 Nd5 10. Bd2 Nxc3 {Magarin-Price, World Schools ch Girls U17,2012,0-1}) 8... dxe5 9. Bb2 h6 10. e4 Be6 11. d3 Nd7 12. Qe1 Kh7 13. Qg3 Rg8 {Pirker-Wolfram, AUT ch U16, Saalfelden 2005,0-1}) 8. Bb2 (8. d4 $11 { Komodo12}) 8... b5 (8... e5) 9. Nb1 Bb7 10. Nd4 (10. a4 $11) (10. c4 $11) 10... Nxd4 11. Bxd4 c5 $17 (11... e5 $17 12. fxe5 dxe5 13. Bb2 (13. Bxe5 Qd5 14. Bf3 Qxe5 15. Bxb7 Rab8 $19) 13... Nd7 $17 {Komodo12}) 12. Bb2 Qd7 13. Bf3 d5 $15 ( 13... Bxf3 14. Qxf3 d5 $15) 14. d3 Rfd8 15. Nd2 Rab8 (15... d4 $5) 16. Be5 Rbc8 {Bl controls more space in the centre, but the Wh pieces can be resilient in the face of any advance} 17. Rb1 Ne8 18. Bxg7 Nxg7 (18... Kxg7) 19. Bg4 e6 ( 19... f5 20. Bh3 Qd6 $15 {Komodo12}) 20. e4 f5 (20... dxe4 21. Nxe4 (21. dxe4 Qxd2) 21... Qd4+ {avoids Nf6 ch} 22. Nf2 (22. Rf2 f5 23. c3 Qe3 $19) 22... Qxf4 $19 {Komodo12- Bl has picked up a useful pawn, & his pieces dominate}) 21. exf5 exf5 22. Bf3 Ne6 23. g3 Nd4 24. Bg2 Re8 25. Rf2 Re6 26. Nf3 Nxf3+ 27. Bxf3 Rce8 (27... d4 28. Bxb7 Qxb7 29. Qf3 Qe7 $17 {Komodo12}) 28. Qd2 Qe7 29. c4 (29. d4 {keeps the Bl B locked in}) 29... d4 {Bl dominates the e file & has a jumping off point at e3} 30. Kf1 $2 (30. Bxb7 Qxb7 31. cxb5 Qxb5 32. a4 Qc6 $17) 30... Re3 $19 {missing a chance to infiltrate even further into Wh territory, though Bl should still be winning} (30... Bxf3 31. Rxf3 Re2 32. Qd1 Rxh2 33. Kg1 Rxa2) 31. Bxb7 (31. Bg2 Bxg2+ 32. Kxg2 Qb7+ 33. Kg1 bxc4 34. dxc4 Qe4 $19 {Komodo121} ) 31... Qxb7 32. Kg1 Qe7 (32... bxc4 33. dxc4 Qe4 34. Rd1 d3 $19 (34... h5 $19) ) 33. Rd1 b4 34. Qc2 Qb7 (34... h5 {Rudy & Komodo12, to create more open lines around the Wh K}) 35. Qd2 R8e6 36. Rg2 Qe7 37. Kf1 Kf7 {(draw?)} (37... h5 $19) 38. Qf2 {Wh should have accepted} Qb7 39. Qd2 (39. Kg1 h5 40. h4 Rf3 41. Qc2 Ree3 42. Kh2 Qe7 43. Kh3 (43. Rdd2 Rxg3 $1 {mating}) 43... Rxf4 $19 {Komodo12}) 39... Rf3+ (39... Qf3+ $1 {Komodo12} 40. Kg1 (40. Qf2 Qxd1+) (40. Rf2 Qh1#) 40... Re2 41. Rxe2 Rxe2 {wins the Q or mates}) 40. Rf2 (40. Kg1 Qe7 41. Kh1 Ree3 42. Qc2 h5 $19 {Komodo12}) 40... Rxd3 (40... Rxg3 {Komodo12 is even stronger}) 41. Rg2 (41. Kg1 Rxd2 42. Rdxd2) 41... Rxd2 (41... Qf3+ $1 {Komodo12 }) 42. Rdxd2 Qf3+ 43. Rdf2 0-1 [Event "Aberystwyth Challenge"] [Site "?"] [Date "2018.11.06"] [Round "?"] [White "Hardman, Dan"] [Black "Headley, Francis"] [Result "1-0"] [ECO "E61"] [WhiteElo "1306"] [BlackElo "1182"] [Annotator "kemen"] [PlyCount "91"] [EventDate "2018.11.07"] 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. Bg5 {the Smslov System, based on a restrained e3 so as not to give Bl e4 as a target} d6 6. e3 Nbd7 {main} (6... c5) 7. Bd3 (7. Be2 {doesn't obstruct the d file, so gives Wh an option of Rd1should Bl think of opening the centre}) 7... c5 (7... e5) (7... c6 { alternatives}) 8. d5 (8. O-O {main, keeping the pawns more flexible}) 8... h6 ( 8... Ng4 9. Qc2 Nde5 {main}) 9. Bh4 Ng4 (9... g5 10. Bg3 Re8 11. Nd2 Ne5 12. Bxe5 dxe5 13. O-O Bg4 14. Qc2 Qc8 15. f4 {AH Williams-RS Jones, WCPL 2012,1-0}) (9... a6 10. a4 Rb8 11. O-O g5 12. Bg3 Nh5 13. Nd2 Nxg3 14. hxg3 Ne5 15. Be2 Bf5 16. Nf3 Bg6 {Colaco-Vieira, Pan American Amateur ch, Curitiba 2015,0-1}) ( 9... Nb6 10. b3 Bg4 11. O-O Nfd7 12. h3 Bxf3 13. Qxf3 Bxc3 14. Rac1 Bg7 $19 { Letourneur-Grynblat, FRA ch tm U18, 2000,1-0!}) 10. O-O (10. h3 Nge5 11. O-O Re8 12. Nxe5 Nxe5 13. Be4 Nxc4 {Sly-Moylan, Australian Capital City ch U18, 1993,0-1}) 10... Nge5 11. Nxe5 Nxe5 12. Be2 Qe8 (12... g5 13. Bg3 f5 {Rudy} 14. f4 Ng6 15. Bh5 Kh7 $14) (12... f5 13. Qd2 a6 $11 {Komodo12}) 13. f4 Nd7 14. e4 a6 15. a4 Nb6 {simply encourages the pawn forward} (15... b6 16. Bf2 Rb8 17. Qd3 Bb7 18. Rae1 Qd8 $14 {Bl needs to wait & see what Wh will do & then hope for a counter attack}) 16. a5 Nd7 17. Qd2 b6 18. axb6 (18. e5 dxe5 19. f5 g5 20. Bf2 Rb8 21. h4 $16 {Wh is probing various weaknesses & has e4 for his pieces}) 18... Nxb6 19. Bg3 (19. e5 $16) 19... Bd7 20. e5 Qb8 21. exd6 { clarifies the position- Bl should be pleased to see the end of a weak e7 pawn, & happy to get the e file for the Rs} (21. Bf2 dxe5 22. fxe5 Bxe5 23. Bxc5 $16 {Komodo12}) 21... exd6 $11 22. Bd3 Qc7 (22... f5 $1 {is neccessary to prevent Wh from playing there & opening up the Bl K side.It also restrains the Wh QB}) 23. Rac1 {Wh is being extra cautious, but it does give Bl time as well} (23. f5 $1 $16 Bxf5 24. Bxf5 gxf5 25. Qd3 Qd7 26. Rf3 $14) 23... Rae8 (23... f5 $1) ( 23... Rfe8 {is also a little better than using the QR}) 24. b3 a5 $2 {gives up the b5 square ( in any case, this move, with the aim of a4 , would be better (later) if it had the QR behind it} (24... f5 $1 $11) 25. f5 $18 Bxf5 (25... gxf5 26. Bf4 Kh7 27. Nb5 Bxb5 28. Bxf5+ Kh8 29. cxb5 $18 {Komodo12}) 26. Bxf5 ( 26. Nb5 {first prevents any Bd4 ch's}) 26... gxf5 27. Rxf5 $16 {this can be left till later} (27. Nb5 $18) 27... Nd7 (27... Qd7 28. Rcf1 a4 29. Nxa4 Nxa4 30. bxa4 Re4 31. Qd3 Re3 32. Qd2 (32. Qxe3 Bd4) 32... Ra3 33. Qf4 Rxa4 34. Bh4 $16 {Bl still has some resitance left & is not actually behind in material}) 28. Nb5 $18 Qd8 29. Bxd6 (29. Nxd6 {is also very strong}) 29... Qh4 30. Bxf8 Nxf8 31. Qf2 (31. Rcf1) 31... Qxf2+ 32. Kxf2 Ng6 33. d6 (33. Re1 {swapping down favours the side ahead in material}) 33... Rd8 34. Rxc5 Rxd6 $5 {but it shouldn't work anyway, even if Wh falls for it} 35. Nxd6 (35. Rc8+ {picks up a whole R}) 35... Bd4+ 36. Kf3 Bxc5 37. Ne4 (37. Nb7) 37... Bb4 38. c5 $18 Ne5+ 39. Ke3 Nc6 40. Rc4 Kg7 41. Nc3 (41. Ng3 Kf6 42. Ke4 Ke6 43. Nf5 {and Bl will be running out of good moves soon}) 41... Ne5 42. Rxb4 (42. Kd4 Nxc4 43. Kxc4 Ba3 44. Nb5 Bb2 45. Nd6 (45. c6 Be5 46. c7 Bxc7 47. Nxc7 {is good enough}) 45... Ba3 46. Kd5 Bxc5 47. Kxc5 {comes to the same}) 42... axb4 43. Nd5 Nc6 44. Kd3 Ne5+ 45. Kd4 f6 46. Nxb4 {with a comfortable win for Wh} 1-0