Thursday, 21 March 2019

After a couple of hiccups early in the season, Aberystwyth are getting back into contention for the Dyfed League title 1n 2019. On Monday 4 March at the Emlyn Cafe, Tanygroes, Aber were in imperious form against Steynton C, helped in places by some convenient errors from their opponents. Rudy van Kemenade was unfazed by Colin Denham' unusual (perhaps improvised?) variation of the Sicilian, which simply lost a pawn without compensation, after which White remained in firm control. Adam Watkin-Jones had reached a level position against Scott Hammett's Stonewall Attack when a miscalculation by White dropped a piece, with the game following soon after. James Cook's Ruy Lopez against Ray Greenwood was a fierce struggle; White won the exchange but Black had two powerful bishops and found some counterplay before being outplayed in the ending. Sam Holman went a pawn up in another Sicilian against Gwyn Evans, but the ending with opposite-coloured bishops should have been drawn till White dropped his bishop to a pawn fork. The result was 4-0 to Aber.

A couple of weeks later, Aber entertained league leaders Cardigan A at home. Rudy's unusual opening brought about a position that may have bemused Iolo Jones, since he soon lost a pawn in a complex game which I don't even begin to understand. At any rate Black retained the advantage and went on to win the ending. Adam, bizarrely, was the beneficiary of a very similar error to the one which had won him a piece and the game against Scott Hammett in the previous match, and Tony Haigh resigned at once. After a quiet Queen's Pawn Game opening, Julie van Kemenade found a kingside attack against Ben Brewer, but White's position didn't seem to have any weaknesses, and his sudden counter-attack was devastating. I built up a strong central position against Awne Osinga's Modern Steinitz Defence to the Ruy Lopez, and broke through with my e-pawn to win a piece. After that I had some problems with a blocked-in bishop but was able to sacrifice it back to reach a winning position. Aber's 3-1 win avenged their defeat earlier in the season, and keeps them close behind Cardigan A in the League.

[Event "Dyfed League:SteyntonC-Aberystwyth"] [Site "?"] [Date "2019.03.04"] [Round "?"] [White "Van Kemenade, R."] [Black "Denham, C."] [Result "1-0"] [ECO "B27"] [WhiteElo "2021"] [BlackElo "1630"] [PlyCount "65"] [EventDate "2019.??.??"] {[%evp 0,7,18,13,45,45,82,87,141,138]} 1. e4 c5 2. Nf3 g6 3. d4 b6 {50 odd games with this} (3... cxd4) (3... Bg7 {main lines}) 4. dxc5 (4. Nc3 {scores even better, though it may just transpose to the text}) 4... bxc5 5. Qd5 (5. Bc4 $18 {Stockfish10 prefers to not take the pawn} e6 6. Nc3 Ba6 7. Bxa6 Nxa6 8. e5 {Yardim-Kavrut, Tukish Cup, Antalya 2017,1-0}) 5... Nc6 6. Qxc5 (6. Ne5 { Stockfish10} e6 7. Nxc6 Qb6 8. Qe5 f6 9. Qg3 Qxc6 10. Nc3 Bd6 11. Bf4 e5 12. Be3 $18 {Nguyen-Thao,Nam THCS Dong Thap 2000,1-0}) 6... Bg7 (6... Bb7 7. Nc3 e6 8. Qb5 Qc8 9. Bd2 Ba6 10. Qxa6 Qxa6 11. Bxa6 Nb4 12. Bd3 {Stoelzel-Janocha, DESC email 2006,1-0}) (6... Qa5+ 7. Qxa5 Nxa5 8. Bd2 Nc6 9. Bc3 Nf6 10. Bc4 Bg7 11. Nbd2 {Llaneza Vega-Alvarez, Asturias ch U12 ,1998,1-0}) 7. Nc3 {Stockfish10 } (7. c3 {main, 6-1}) (7. Bd3 Qc7 8. Nc3 d6 9. Nd5 Qb7 10. Ba6 (10. Qe3 $16) 10... dxc5 (10... Qxa6 $19) 11. Bxb7 Bxb7 12. Nc7+ Kd7 13. Nxa8 Bxa8 $17 { Huyet-Brugge, La Fere op 2012,0-1}) 7... Bb7 8. Bd2 (8. Bc4 {Stockfish10- considered} Rc8 (8... Bxc3+ 9. bxc3 Qa5 10. Qxa5 Nxa5 11. Bd3 $16 {Wh thought Bl might have some play on the c file}) 9. Qe3 Qb6 10. O-O Qxe3 11. Bxe3 Nf6 12. Rfd1 d6 13. h3 O-O 14. Bb3 Na5 15. Nd2 $16) 8... Rc8 (8... d6 9. Qe3 e6 10. Bb5 Nge7 11. O-O O-O 12. a3 Qc8 13. Rfe1 a6 14. Bd3 Ne5 15. Nxe5 Bxe5 16. Rab1 Nc6 $18 {Wegner-Krolak, POL ch tm IV liga szachowa 2011,0-1 - Wh blundered a R on move 42 in a winning position}) 9. Qe3 (9. Bd3 {considered- eventual Stockfish10 first choice} Nf6 (9... Ne5 10. Qxa7 Nxf3+ 11. gxf3 Bc6 12. O-O $18 {considered}) 10. O-O O-O 11. h3 $16) (9. Qb5 Rb8 10. Bd3 Ba8 11. Qa4 Rxb2 12. O-O $16 {Stockfish10, but there is no need to return the pawn yet}) 9... Nb4 ( 9... Bh6 10. Qe2 $16 {considered}) (9... Nf6 10. h3 {Wh must be careful as Bl can easily get play in return for the pawn} (10. Bc4) (10. Bd3) 10... d5 11. exd5 Nxd5 12. Nxd5 Qxd5 13. Qb3 Qe4+ (13... Qxb3 14. axb3 Bxb2 15. Ra4 Bg7 16. b4 O-O 17. b5 Ne5 18. Nxe5 Bxe5 19. Rxa7 Rfd8 20. Rxb7 Rxc2 21. Rxe7 Bf6 22. Bb4 Rc1+ 23. Ke2 Rc4 24. Ba5 Bxe7 25. Bxd8 Bxd8 26. Kd2 Ba5+ 27. Kd3 Rb4 28. Kc2 $11 {Stockfish10}) 14. Kd1 Nd8 15. Bd3 Qe6 16. Bb5+ Kf8 17. Qxe6 Nxe6 18. c3 Nc5 $14 {Stockfish10}) 10. Bd3 (10. Rc1 Qb6 11. Qxb6 axb6 12. Bb5 $16 { Stockfish10}) 10... Ba6 11. Rc1 {safest} (11. a3 {considered} Nxd3+ (11... Bxd3 12. axb4 Bxc2 13. Nd4 {Stockfish10, missed} Bxd4 14. Qxd4 Nf6 15. Rxa7 $18) 12. cxd3 Qb6 13. Qxb6 axb6 14. Ke2 $16) (11. O-O Bxd3 12. cxd3 Nc2 13. Qxa7 Nxa1 14. Rxa1 $16 {considered}) (11. Qe2 $2 Nxc2+ {seen} 12. Kf1 Bxd3 13. Qxd3 Nxa1 $19) 11... Bh6 12. Qd4 Bxd2+ {Bl should play the moves in a different order} ( 12... Nxd3+ 13. cxd3 Bxd2+ 14. Nxd2) 13. Nxd2 {after consideration of the best way to take back!} (13. Kxd2 {wins material as} Nxd3 14. Qxh8 Nxc1 $2 15. Qxg8# ) 13... Nxd3+ 14. cxd3 f6 (14... Nf6 15. e5 Nh5 16. O-O O-O 17. Nc4 $18 { Stockfish10}) 15. O-O Qb6 {after the d pawn , but Bl is way behind in development} (15... Kf7 16. b4 e5 17. Qd5+ Kg7 18. b5 Ne7 19. Qd6 Bb7 20. Na4 $18 {Stockfish10}) 16. Qxb6 axb6 17. Nd5 Rxc1 (17... Kf7 18. Rxc8 Bxc8 19. Rc1 Nh6 20. Rc7 Rd8 21. a4 Ba6 22. d4 Rb8 23. Rxd7 $18 {Stockfish10}) 18. Rxc1 Bxd3 19. Rc8+ Kf7 20. Nxb6 $18 Ba6 21. Ra8 Bb7 22. Rb8 (22. Ra7 {wins another pawn, but lets Bl R out}) 22... Bc6 23. a4 h5 24. b4 d6 25. b5 (25. a5 Bb5 26. Nd5 Bd3 27. b5 {transposes to something like the game}) 25... Be8 26. Nd5 (26. Rxe8 Kxe8 27. a5 Kf7 (27... Kd8 28. a6 Kc7 29. Ndc4 e6 30. a7 Ne7 31. a8=Q Rxa8 32. Nxa8+ Kb7 33. Nab6 $18 (33. Nxd6+ Kxa8 34. Ne8 f5 35. e5 Kb7 36. Ng7 Kb6 37. Nxe6 Kxb5 38. f4 $18)) 28. a6 Nh6 29. a7 $18 {considered}) 26... f5 27. a5 (27. b6 Bxa4 {considered & pm analysis} 28. Nb4 $18 {Stockfish10} (28. b7 Bc6 29. Rf8+ Kxf8 30. b8=Q+ $18)) 27... fxe4 (27... Bxb5 {at once}) 28. Nxe4 (28. a6) ( 28. b6) (28. Nc7) 28... Bd7 (28... Bxb5 {at once}) 29. a6 Bxb5 30. Ng5+ (30. a7 Bc6 31. Ng5+ Kg7 32. Nb4) 30... Kg7 31. Ne6+ Kf7 (31... Kh7 32. Nf8+ (32. a7 Bc6 33. Nb4 Be4 34. Ng5+ Kg7 35. Nxe4) 32... Kh6 33. Rxb5 Nf6 34. a7 (34. Rb8 Nxd5 35. a7 Nc7 36. Ne6) 34... Rxf8 35. Rb8 $18) 32. Nd8+ {interupting the Bl R stopping the pawn} (32. Ndc7 Kf6 33. Rxb5 Nh6 34. a7 {Stockfish10}) 32... Kg7 (32... Ke8 33. a7 (33. Nc7+ Kd7 34. Nxb5)) 33. a7 {for the moment material is still level.} 1-0 [Event "Dyfed League:SteyntonC-Aberystwyth"] [Site "?"] [Date "2019.03.04"] [Round "?"] [White "Hammett, S."] [Black "Watkin-Jones, A."] [Result "0-1"] [ECO "A45"] [WhiteElo "1533"] [BlackElo "1928"] [Annotator "kemen"] [PlyCount "78"] [EventDate "2019.??.??"] {[%evp 0,12,37,-30,-3,-24,17,-15,-6,-1,-20,-28,-41,-50,-17]} 1. f4 g6 2. Nf3 Bg7 3. e3 d6 4. d4 Nf6 5. c3 (5. Bd3 O-O 6. O-O {main}) 5... O-O 6. Bd3 Nbd7 { main} (6... c5) (6... Nc6 7. O-O e5 8. Nbd2 Qe7 9. Bc2 e4 (9... exf4 10. exf4 Qe3+ 11. Kh1 Qxf4 {Waquet-Schmidt, La Fere vop 2009,0-1} 12. Ne4 $11 {Komodo12} ) 10. Ng5 Bf5 11. Qe1 h6 12. Nh3 Bxh3 13. gxh3 Qe6 {Boot-Van Kemenade R, Wakefield-Undercliffe 1991,0-1}) 7. O-O Re8 {65% for Bl} (7... e5 {main ,72% for Bl}) (7... c5 {61% for Bl}) (7... h6 {waiting move- Rudy, not yet been played}) 8. Nbd2 (8. e4 e5 {main,53% for Bl}) 8... e5 9. Ng5 (9. fxe5 dxe5 10. Bc4 $11 {50 % 4 games}) (9. Qc2 $11 {though 72% for Wh- its not always the opening that causes results!}) 9... Qe7 {overcautious about sacrifices on f7?} (9... h6 $2 {no} 10. Nxf7 $18 (10. Nge4 Nxe4 11. Bxe4 Nf6 12. Qc2 Nxe4 13. Nxe4 Bf5 (13... exd4 $19) 14. g4 Bxg4 15. Qg2 Qd7 $19 {Antusch-Costescu, Wld ch Seniors (women) Bad Wildblad 1993,0-1}) 10... Kxf7 11. Qb3+ Ke7 (11... Re6) 12. fxe5 (12. Bxg6) 12... dxe5 13. Ne4 (13. Bxg6 Rf8 14. Rf5 $18) 13... Rf8 $11 { Brito-Meirelles, Goiania Kasparov op 2011,0-1}) (9... exd4 {Komodo12 & Stockfish10} 10. exd4 (10. cxd4 $11 {Komodo12}) 10... c5 (10... Nb6 $11) 11. Ndf3 h6 12. f5 c4 13. Bxc4 (13. fxg6 hxg5 14. gxf7+ Kxf7 15. Bxc4+ d5 16. Nxg5+ Kg8 17. Bd3 $16 {Komodo12}) 13... d5 14. Bb5 a6 (14... hxg5 $15) 15. Bxd7 Bxd7 16. fxg6 fxg6 17. Ne5 Bf5 (17... hxg5 18. Bxg5 Bf5 $17) 18. Ngf7 $16 { Schmidt-Ellis, IECG 1996,1-0}) 10. Nde4 (10. fxe5 dxe5 11. e4 (11. Bc4 Rf8 12. Qf3 Nb6 13. Bb3 (13. Bxf7+ Rxf7 14. Nxf7 Kxf7 (14... exd4 15. exd4 (15. Ng5 Bg4 16. Qg3 dxe3 $17) 15... Qxf7 16. Ne4 Nbd5 17. Bg5 Bf5 $11) 15. Ne4 Nbd7 16. Nxf6 Nxf6 17. e4 Bd7 18. Bg5 Rf8 19. Qg3 Ke8 20. Rae1 $11 {Komodo12}) 13... Bg4 14. Qg3 exd4 15. exd4 Bf5 $11) 11... h6 12. Ngf3 exd4 13. cxd4 c5 $15 {Komodo12 }) 10... exd4 (10... h6 11. dxe5 dxe5 12. Bc4 (12. Nxf6+ Nxf6 13. fxe5 Qxe5 14. Nf3 Qe7 15. e4 Qc5+ 16. Nd4 Nxe4 $17 {Komodo12}) 12... hxg5 13. Nxf6+ Nxf6 14. fxg5 Bf5 15. gxf6 Bxf6 16. Qb3 e4 17. Qxb7 Rad8 18. Qxa7 Be5 $15 {Komodo12} ( 18... Kg7 $15)) (10... d5 {Rudy} 11. Nxf6+ Bxf6 12. Nh3 (12. Nxh7 Kxh7 13. fxe5 Nxe5 14. dxe5 Bxe5 $17) 12... e4 13. Be2 Bg7 $15 {Komodo12}) 11. Nxf6+ Nxf6 12. exd4 h6 (12... c5 13. Bd2 Qc7 14. f5 c4 15. Bc2 h6 (15... Bxf5 16. Bxf5 gxf5 17. Rxf5 h6 18. Nh3 Qd7 $11 {Komodo12}) 16. fxg6 hxg5 17. Bxg5 Bg4 18. Qd2 Re6 19. Qf4 fxg6 20. Bxf6 Be2 21. Bxg7 Bxf1 22. Rxf1 Qxg7 23. Be4 Rf8 24. Bd5 Rxf4 25. Bxe6+ Kh8 26. Rxf4 Qe7 27. d5 $11 {Komodo121}) 13. Nf3 Bg4 (13... Bd7 14. f5 g5 $11 {Komodo12} 15. h4 g4 16. Nh2 h5 17. Bg5 d5 18. Qd2 Qd6 19. Qf4 Qxf4 20. Bxf4 c5 21. dxc5 Ne4 22. Bxe4 Rxe4 23. Rad1 Bb5 24. Rf2 Bf8 25. Rxd5 Bc6 26. Rd6 Bxd6 27. cxd6 Re1+ 28. Nf1 Bb5 $15 {Komodo121}) 14. Bd2 (14. f5 g5 15. h3 Bxf3 16. Qxf3 c6 (16... d5 17. h4 $14) 17. h4 gxh4 (17... g4 18. Qg3 d5 19. Bf4 Nh5 20. Qxg4 Nxf4 21. Rxf4 h5 22. Qxh5 Qe3+ 23. Rf2 Qxd3 24. f6 Bf8 25. Rf5 Qe3+ 26. Kh1 Qh6 27. Qg4+ Bg7 28. Qxg7+ Qxg7 29. fxg7 Re4 30. g3 Kxg7 31. Raf1 $16) 18. Qh3 Ne4 19. Bxe4 Qxe4 20. f6 Bf8 21. Bd2 Qg6 22. Rf4 Re4 23. Rxe4 Qxe4 24. Re1 Qg6 25. Qxh4 $16 {Komodo12}) 14... d5 (14... Ne4 15. Re1 d5 $17 { Komodo12}) 15. Qc2 (15. f5 Ne4 16. fxg6 fxg6 17. Qc1 g5 18. Qc2 Nxd2 19. Nxd2 Rf8 $11 {Komodo12}) 15... Bxf3 (15... Ne4 16. Ne5 Bf5 17. g4 Nxd2 18. Qxd2 Bxd3 19. Qxd3 c5 $11 {Komodo12}) 16. Rae1 $2 {a zwischenzug} (16. gxf3 {Komodo12} Qd6 17. Rae1 a6 18. f5 g5 19. Kh1 Nh5 $11) (16. Rxf3 Qd6 17. f5 g5 18. Re1 Rxe1+ 19. Bxe1 Re8 20. Bg3 Qb6 21. Qb3 Qxb3 22. axb3 c6 $11 {Komodo12}) 16... Be4 $19 {foiled by another one} 17. Bxe4 Nxe4 18. f5 Qd7 (18... g5) 19. fxg6 fxg6 20. Bc1 Rf8 (20... Re6) 21. Rxf8+ Rxf8 22. Rf1 Rxf1+ 23. Kxf1 Qf5+ (23... Qc6 24. Qe2 Bxd4 25. Bxh6 Bb6 26. Bf4 Qf6 $19 {Komodo12}) 24. Kg1 Nd6 (24... h5 ) 25. Qe2 Qe4 26. Qf2 Nf5 (26... Qb1 27. Qf1 Qxa2 {Komodo12}) 27. g3 Nxd4 $1 28. Be3 Nf5 (28... Nf3+ 29. Kf1 (29. Kg2 Ne5+ 30. Kg1 Ng4 $19) 29... Qb1+ ( 29... Nxh2+ 30. Qxh2 Qxe3 $19) 30. Kg2 (30. Ke2 Ne5 31. Bd2 Qxb2) 30... Ne1+ 31. Kg1 Nc2+ (31... Nd3+ {most humans would opt for this one} 32. Qf1 Qxf1+ 33. Kxf1 Nxb2) 32. Kg2 Nxe3+ 33. Qxe3 Qxb2+ 34. Kg1 Qxa2 $19 {Komodo12}) 29. Bxa7 d4 (29... b6 30. Bb8 Ne3 (30... Be5) (30... d4 31. Bxc7 Qb1+ 32. Qf1 (32. Kg2 Ne3+ 33. Kh3 Qd1 34. Qf4 Qh5+ 35. Qh4 Qf5+ 36. g4 Qf1+ 37. Kg3 Qg2+ 38. Kf4 Nd5# {Komodo12}))) 30. cxd4 Bxd4 (30... b6 31. Kf1 Bxd4 {mating, Komodo12}) 31. Bxd4 Qxd4 32. a4 Qxf2+ 33. Kxf2 Kf7 34. Kf3 Ke6 35. Ke4 h5 36. b4 g5 37. a5 c6 38. Kd3 Kd5 39. Kc3 Nxg3 0-1 [Event "Dyfed League:SteyntonC-Aberystwyth"] [Site "?"] [Date "2019.03.04"] [Round "?"] [White "Cook, James"] [Black "Greenwood, Ray"] [Result "1-0"] [ECO "C62"] [WhiteElo "1496"] [BlackElo "1284"] [Annotator "kemen"] [PlyCount "103"] [EventDate "2019.??.??"] {[%evp 0,103,19,31,34,19,13,4,62,48,50,51,51,32,38,37,20,43,28,28,39,16,80,78, 110,120,127,96,119,104,107,71,61,82,82,95,241,241,265,145,124,72,81,82,98,80, 80,82,80,85,120,108,158,129,158,59,55,-39,99,113,118,107,112,97,95,79,128,124, 131,162,129,90,96,101,104,104,211,211,215,216,254,250,262,264,265,265,265,246, 420,376,456,486,902,876,962,992,1002,952,992,992,1271,1349,1591,1924,2520,2296] } 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 exd4 5. Nxd4 Bd7 6. Nxc6 (6. Nc3) (6. O-O {main lines}) (6. Bxc6 bxc6 7. Nc3 {is a line that goes for opposite sides castling}) 6... bxc6 7. Bc4 Nf6 8. Nc3 Be7 9. O-O Rb8 (9... O-O 10. Re1 Be6 11. Bxe6 fxe6 12. e5 Nd5 13. Nxd5 cxd5 14. Qg4 Rf5 15. Bh6 Bg5 16. Bxg5 Qxg5 17. Qxg5 Rxg5 18. exd6 e5 19. dxc7 Rc8 20. f4 $1 $16 {Cook-Wade, Dyfed League: HaverfordwestB-Aberystwyth B,2014,1-0}) 10. Bb3 (10. b3 {2-0 in IECG internet games}) 10... Bg4 11. f3 Bh5 (11... Be6) 12. Be3 $17 a5 13. Ba4 Qd7 (13... O-O) 14. Rb1 (14. Nd5 $18 {Komodo12} O-O (14... Bg6 15. Ba7 Rxb2 16. Nxe7 Kxe7 17. Bb3 c5 18. e5 dxe5 19. Bxc5+ Kd8 20. Qe2 Qc6 21. Qxe5 $18) (14... Bd8 15. Qd2 O-O 16. Nf4 Rb4 17. b3 Bg6 18. Nd3 Rb8 19. Qxa5 $18) 15. Bxc6 $18 {Komodo12}) 14... O-O 15. Nd5 Nxd5 16. exd5 Qf5 17. Bxc6 $16 Bf6 (17... Bg6) 18. g4 $18 Qe5 19. Re1 (19. Ba7 {Rudy- Komodo12, maybe slighly more accurate, as after} Bg6 20. f4 Qe4 21. f5 $18) 19... Bg6 20. Ba7 (20. f4 {is still a possibility} Qe4 21. f5 Bc3 22. fxg6 fxg6 23. Bd7 Bxe1 24. Qxe1 Rf3 25. Be6+ $18 {Komodo12}) 20... Qf4 21. Bxb8 Rxb8 22. Qe2 {threatens the back rank} h5 23. gxh5 {best} Bxh5 24. Rf1 (24. Qe4 Bd4+ 25. Kg2 Qd2+ 26. Re2 Qg5+ 27. Kh1 f5 28. Qd3 Qf4 29. Rf1 Rxb2 $11 {Komodo12}) 24... Qg5+ 25. Qg2 (25. Kh1 Rb4 26. c4 Bg6 27. Rg1 Qh5 28. Rxg6 Qxg6 29. Rg1 Qf5 30. b3 $14 {Komodo12}) 25... Bd4+ 26. Kh1 Qf4 27. c3 (27. b3 $5) 27... Bxc3 $1 28. Bd7 (28. Qg3 Qe3 29. b3 Rb4 30. Rbc1 Rd4 $11 { Komodo12}) (28. bxc3 $2 Rxb1 29. Rxb1 Bxf3 $19) (28. b3 Rb4 29. Rbd1 Qf5 30. Rc1 Be5 31. Rc4 Rxc4 32. bxc4 Qd3 33. Bb5 Bc3 34. a4 $14 {the Bl Bs control a lot of squares}) 28... Rxb2 (28... Bg6 29. Rbd1 Rxb2 30. Rf2 Rb4 $15 {Komodo12} ) 29. Rxb2 Bxb2 30. Bg4 $16 (30. Qxb2 Bxf3+ 31. Rxf3 (31. Kg1 Qg5+ 32. Kf2 Qg2+ 33. Ke3 Qxb2 $19) 31... Qxf3+ 32. Kg1 Qe3+ {probably a perpetual} (32... Qxd5)) 30... Bxg4 31. fxg4 (31. Qxg4 Qe5 32. Qe4 Qf6 33. Qc4 g6 34. Qxc7 Be5 35. Qc4 $16 {Komodo12}) 31... Qe5 (31... Qc4 32. Rb1 Be5 33. g5 g6 34. Rf1 $16 { Komodo12}) 32. Rb1 (32. Qf3 Qe7 33. Rb1 Bf6 34. Rb8+ Kh7 35. Kg2 g6 36. Qh3+ Bh4 37. Qc3 Bf6 38. Qd3 Kg7 39. Rb7 $16 {Komodo12- Wh will win the c7 pawn, but then needs to arrange a Q swap to have any winning chances}) 32... Bc3 ( 32... Bd4 33. Qf3 Bb6 34. Rf1 Qe7 $16 {Komodo12, but not clear where there is a to be a Wh breakthrough}) 33. Rb8+ Kh7 34. Qh3+ Kg6 35. Qh5+ (35. Qd3+ $1 { it looks asif Wh needs to mop up a few pawns first befote going just the exchange up} Kf6 (35... Kg5 36. Re8 $1 Qf4 37. h4+ Kxh4 38. Rh8+ Kxg4 39. Qh3+ Kg5 40. Qxc3 $18) 36. Rc8 g6 37. Rxc7 Qe1+ 38. Kg2 Be5 39. Qf3+ Kg5 40. Rxf7 Qd2+ 41. Qf2 Qd3 42. Rf3 Qc4 43. Qe3+ Kxg4 44. Qd3 Qxd3 45. Rxd3 $18 {Komodo12} ) 35... Qxh5 36. gxh5+ Kxh5 37. Rb7 g5 (37... f5 38. Rxc7 Be5 39. Kg2 g5 { Komodo12- and it will be very difficult for Wh to find a weak spot in the Bl position- one pawn & a B for the exchange often leads to a draw if the defender has a passed pawn, preferably an outside one.} (39... Kg4 40. Rc4+ Kg5 41. h3 g6 $16)) 38. Rxc7 Bb4 39. Rxf7 $18 {now Wh can gang up with K & R on any isolated pawn he chooses} Kg4 40. Kg2 Bc3 41. h3+ Kh5 42. Kf3 Kg6 43. Re7 ( 43. Rd7 Bb4 44. Kg4 Kf6 45. Rd8 $18) 43... Be5 44. Ke4 (44. Kg4 Bf4 45. Re6+ Kg7 46. h4 {Rudy}) (44. Rxe5 $1 dxe5 45. Ke4 Kf6 46. a4 Ke7 47. Kxe5 $18 { Komodo12}) 44... Kf6 (44... Bf4 {Komodo12-lasts a little longer- Wh needs to backtrack a little} 45. Re6+ Kh5 46. Kf3 Bh2 47. Re8 Bf4 48. Rh8+ Kg6 49. Kg4 Bd2 50. Re8 Kf7 51. Re6 Bf4 52. h4) 45. Re6+ Kf7 46. Rxe5 (46. Kf5 Bf4 47. h4 $18 {is an alternative}) 46... dxe5 47. Kxe5 Ke7 48. d6+ (48. a4 Kd7 49. Kf5 Kd6 50. Kxg5 Kxd5 51. h4 Ke6 52. Kg6 Ke7 53. Kg7 {quickest- Komodo12}) 48... Kd7 49. Kd5 (49. a4 {Rudy & Komodo12 comes to the conclusion that this is quickest line}) 49... Kc8 50. Kc6 (50. Ke6 Kd8 51. d7 a4 52. a3) 50... a4 51. d7+ Kd8 52. a3 1-0 [Event "Dyfed League:SteyntonC-Aberystwyth"] [Site "?"] [Date "2019.03.04"] [Round "?"] [White "Evans, Gwyn"] [Black "Holman, Sam"] [Result "0-1"] [ECO "B28"] [WhiteElo "1300"] [BlackElo "1370"] [Annotator "kemen"] [PlyCount "106"] [EventDate "2019.??.??"] 1. e4 c5 2. Nf3 d6 3. g3 (3. d4 {main}) 3... a6 4. Bg2 Nc6 5. a3 $146 (5. O-O) (5. d3) (5. Nc3) 5... Bg4 (5... g6 {Stockfish10}) 6. d3 h6 (6... e6) 7. b3 { both sides work towards an unusaul position} Nf6 8. Bb2 e6 9. Nbd2 Be7 (9... d5 {Bl can afford to advance in the centre}) 10. O-O e5 (10... O-O) 11. Qe1 (11. Nc4 O-O 12. Ne3 Bh5 13. Qd2 Nd4 14. Nxd4 cxd4 15. Nf5 Bg6 16. Nxe7+ Qxe7 17. c3 dxc3 18. Bxc3 Rac8 $14 {Stockfish10}) 11... Qd7 (11... b5 $11 {Stockfish10}) 12. Nh4 (12. Nc4 Rd8 13. Ne3 Bh3 14. Nh4 Bxg2 15. Kxg2 d5 $11 {Stockfish10}) 12... O-O (12... Nd4 13. Qb1 O-O 14. c3 Nc6 15. Nc4 Rad8 16. Ne3 Be6 17. c4 g6 $11 {Komodo12}) 13. Nf5 {this is often a good sacrifice to make use of the e4 square & open up lines for the wh B, but Bl is too well developed here for it to have that much impact} (13. Nc4 Nh5 14. Nf3 Rae8 15. Nb6 Qd8 16. Nd5 Nf6 17. Ne3 Be6 $11 {chances for both sides}) 13... Bxf5 14. exf5 Qxf5 (14... Rfe8 $17) 15. Ne4 (15. f4 $1 {is the usual way to exploit the position of the Q} Qd7 16. Nc4 Rae8 17. fxe5 dxe5 18. Nxe5 Nxe5 19. Qxe5 c4 20. bxc4 Bxa3 21. Qc3 Bxb2 22. Qxb2 Re7 $11 {Stockfish10}) 15... Nd4 (15... Rab8 $1 16. Rb1 Nd4 $15 { Stockfish10}) 16. Nxf6+ Bxf6 17. Bxd4 cxd4 18. Bxb7 Ra7 19. Bd5 $11 Rc8 20. Ra2 {buries a R for the moment} (20. Qe2) (20. Bc4 {both more flexible}) 20... Rc3 21. Qe4 (21. Qe2) 21... Qxe4 22. Bxe4 {diverts the B from where it needs to be. } (22. dxe4 $11) 22... Rac7 (22... Bd8 {Stockfish10}) 23. Bd5 (23. Rb1 Rxc2 24. Rxc2 Rxc2 25. b4 $11 {Stockfish10}) 23... Rxc2 24. Rxc2 Rxc2 25. Bc4 (25. b4 $11 {Stockfish10}) 25... a5 $15 26. b4 (26. a4 {may be better- to stabilize the Q side}) (26. Kg2 Kf8 27. Kf3 Ra2 28. b4 Rxa3 29. Rb1 axb4 30. Rxb4 d5 31. Rb3 Ra5 32. Rb5 Rxb5 33. Bxb5 Ke7 34. Bc6 Kd6 35. Bb7 $15 Be7 36. g4 g6 37. Bc8 Kc7 38. Ba6 f5 39. gxf5 gxf5 40. Ke2 e4 41. Bb5 Bh4 42. f3 Kd6 43. h3 Bd8 44. Be8 Be7 45. Bg6 Ke5 46. Bf7 Bd8 47. Bg8 {and Bl will be unable to make further progress- Stockfish10 nudged}) 26... axb4 27. axb4 Rb2 (27... e4 $1 { Stockfish10} 28. Kg2 (28. b5 Bd8 29. Ra1 e3 30. fxe3 dxe3 31. Ra8 Rc1+ 32. Kg2 e2 33. Rxd8+ Kh7 34. Re8 e1=Q 35. Rxe1 Rxe1 36. Bxf7 Rb1 37. Bc4 Kg6 38. Kf3 Kf5 39. Ke3 Ke5 40. d4+ Kf6 41. Kd3 Ke7 42. Ke4 Kd7 43. Kd5 Rb2 44. h3 g5 45. Bd3 Rb3 46. Bf5+ Kc7 $19) 28... e3 29. Bd5 Bd8 30. Kf3 (30. Kh3) 30... Bb6 $19 {because the Bl R is the more active, so transfers some of its pwers to the companion B}) 28. b5 (28. Ra1 {Rs need activity} Rxb4 (28... e4 29. dxe4 Rxb4 30. Ra8+ Kh7 31. Rc8 (31. Bxf7 d3 $17) 31... g5 32. Rc7 Be5 33. Rxf7+ Kg6 34. Rc7 $11) 29. Ra8+ (29. Ra7) 29... Kh7 30. Bxf7 e4 31. h4 h5 32. Ra2 $11 { Stockfish10}) 28... d5 29. Bxd5 Rxb5 30. Be4 (30. Bc4 {better to keep the B trained on the f7 pawn} Rb7 31. Ra1 g6 32. Kg2 {and its doubtful eithe r side can win}) 30... g6 31. f4 (31. Rc1 $11 {activity}) 31... Kg7 (31... exf4 32. Rxf4 Bg5 33. Rf1 f5 34. Bf3 Be3+ 35. Kh1 Kg7 $17 {Stockfish10, but still not quite enough to force a win}) 32. Kg2 (32. f5 $11 {Sam- the B now has a firm base on e4-Stockfish10}) 32... exf4 33. Rxf4 Bg5 34. Rf1 Ra5 (34... f5 35. Bc6 Rb2+ 36. Kh1 (36. Rf2 Rb3 $19 {as the d p awn goes- in both senses, Wh & Bl})) 35. g4 (35. h4 Be3 36. g4) 35... Be3 36. h3 Rg5 {not usually a good idea to have Rs too close to the K they are attacking, as they can return the compliment} (36... h5 37. Kg3 f6 {and Wh is running out of moves}) 37. Kg3 h5 38. Kh4 Bd2 (38... f6) 39. Rf2 {initially Bl thought this was a losing move} Be1 40. Kxg5 Bxf2 41. gxh5 $11 f6+ 42. Kg4 $2 {but this is it} (42. Kf4 Be3+ 43. Kg3 gxh5 44. Bf5 $11 {one pawn up is just enough in an opposite colour B ending, especially with pawns all on the same side.}) 42... f5+ $19 43. Bxf5 ( 43. Kf3 fxe4+ 44. Kxf2 e3+ {and the protected passed pawn decides} 45. Kg2 g5 ( 45... gxh5)) 43... gxf5+ 44. Kxf5 Kh6 45. Kg4 Be1 46. Kf4 Kxh5 47. Ke4 Bc3 ( 47... Bf2 {also}) 48. Kd5 Kh4 49. Ke4 Kxh3 50. Kf3 Bb2 51. Ke2 Kg3 52. Kd2 Kf2 53. Kc2 Ke2 0-1 [Event "Dyfed League:Aberystwyth-CardiganA"] [Site "online arena"] [Date "2019.03.19"] [Round "?"] [White "Jones, IC."] [Black "Van Kemenade, R."] [Result "0-1"] [ECO "B12"] [WhiteElo "2238"] [BlackElo "2021"] [Annotator "kemen"] [PlyCount "126"] [EventDate "2019.??.??"] 1. Nf3 d6 2. d4 c6 3. e4 Nd7 4. Nc3 h6 (4... e5 {main}) 5. a4 $146 (5. Bc4) (5. Bd3 {main}) 5... Qa5 (5... e5 {returns to a Philidor}) (5... g5 $5) 6. Bd2 g5 { pursuing ideas from the Elshad System, designed to get Wh players out of their comfort zone. An evetual g4 will undermine the Wh centre} (6... e5 {looks safer }) (6... Qc7 7. Be3 e5 {same principle}) 7. Nd5 (7. h3 {Stockfish10}) 7... Qd8 8. Ne3 e6 (8... Ngf6 9. Bd3 e5 10. Bc3 g4 11. Nxe5 dxe5 12. dxe5 Nxe5 13. Bxe5 Qa5+ 14. Bc3 Bb4 15. O-O Bxc3 16. Nc4 Qc5 17. bxc3 Be6 18. e5 Bxc4 19. Bxc4 Qxc4 20. exf6 O-O 21. Qd2 Kh7 22. Qd7 Qxc3 23. Qf5+ Kh8 24. Rad1 $16 { Stockfish10}) (8... Ndf6 {considered in pm analysis} 9. Bd3 e6 10. e5 Nd5 11. Nc4 Nf4 12. Bxf4 gxf4 13. exd6 Bxd6 14. Nxd6+ Qxd6 15. O-O Nf6 16. Re1 Bd7 17. Qd2 O-O-O 18. Re5 Nd5 19. c4 f6 20. Re4 Nc7 21. Rxf4 $18 {Stockfish10}) 9. Bc3 Bg7 (9... d5 {pm analysis} 10. exd5 cxd5 11. h4 gxh4 12. Rxh4 Ne7 13. Bd3 Nc6 14. Kf1 Nf6 15. Ne5 Bd7 16. Qf3 Nxe5 17. dxe5 Ne4 18. Rf4 Qg5 19. Rg4 Qe7 20. Nc4 h5 21. Rxe4 dxe4 22. Bxe4 Qc5 23. Na5 Rg8 24. Nxb7 Qc4+ 25. Kg1 Rc8 26. Re1 $18 {Stockfish10}) 10. Nc4 Ndf6 (10... Nb6 11. Ne3 Ne7 (11... a5) 12. h4 $16 { Stockfish10}) 11. e5 (11. Nxd6+ Qxd6 12. e5 Qc7 13. exf6 Nxf6 $11 {Stockfish10} ) 11... dxe5 12. dxe5 (12. Nfxe5 Ne7 13. h4 gxh4 14. Rxh4 Nf5 15. Rh3 Nd5 16. Qf3 Rf8 17. O-O-O Qe7 18. g4 Nd6 (18... Nxc3 19. bxc3 Nd6 20. Nxc6 $18) 19. Nxd6+ Qxd6 20. Bd2 Bd7 21. Qb3 Bc8 (21... O-O-O 22. c4 Bxe5 23. dxe5 Qc5 24. Kb1 Nc7 25. Bxh6 $18 {Stockfish10})) (12. Ba5 $1 b6 13. Bb4 c5 14. dxc5 Nd5 15. Ba3 bxc5 16. Bxc5 Nge7 17. h4 g4 18. Nfxe5 f5 (18... O-O 19. Qxg4 $18) (18... h5 19. Nd6+ Kf8 20. Qd4 Qa5+ 21. c3 Kg8 22. Ndxf7 Nf5 23. Qc4 Bb7 24. Nxh8 Bxe5 25. Ng6 Rc8 26. Nxe5 Rxc5 27. Qb3 Qc7 28. Nd3 $18 {Stockfish10}) 19. Nd6+ Kf8 20. Nc6 Qc7 21. Nxf5 Qxc6 22. Bxe7+ Nxe7 23. Qd8+ Qe8 24. Qxe8+ Kxe8 25. Nxg7+ $18 {Stockfish10}) 12... Qxd1+ 13. Rxd1 Nd5 14. Nd6+ {if I can get a N onto e6 or d6 I can go to sleep for the rest of the game- Tarrasch.However usually in these cases there is still an e or a d pawn still on its original square, when the enemy pieces can scarcely move. Here the N is on its own, with an entire Bl army watching it, while the Wh N has only half support from a B & an f3 N.} (14. Bd2 c5 15. b3 $16 {Stockfish10}) (14. Bd4) 14... Kf8 15. Bd4 Nge7 (15... b6 {considered} 16. c4 Nb4 17. Bd3 {Stockfish10} (17. Rd2 {a more natural human move, looked at by Bl, is disliked by Stockfish10} c5 18. Bc3 Na2 $15) 17... Nxd3+ 18. Rxd3 Ne7 (18... c5 19. Bc3 Ba6 20. h4 g4 21. Nd2 f5 22. Ke2 $16 {Stockfish10}) 19. b4 Nf5 20. Bc3 Nxd6 21. Rxd6 Ke7 22. c5 Rd8 23. Nd2 $16 { Stockfish10}) 16. c4 Nf4 (16... g4 17. Nh4 Nf4 18. Bc5 Bxe5 19. g3 Nfg6 20. Nxc8 Rxc8 21. Nxg6+ fxg6 22. Rd7 Bf6 23. Rxb7 $18 {Stockfish10}) 17. h3 { holding up g4 to secure the e pawn} (17. Bc5 Kg8 18. g3 Nfg6 19. Ne4 Bf8 20. h4 g4 21. Nf6+ Kg7 22. Nh5+ Kh7 23. Nh2 Nxe5 24. Nf6+ Kg7 25. Bd4 N7g6 26. Ne8+ Kh7 27. Nc7 Rb8 28. Bxa7 Nd7 29. Nxg4 $18 {Stockfish10 knows how to bring in the reinforcements}) 17... Nf5 18. Bc5 (18. Bxa7 Nxd6 19. Bc5 Rxa4 20. Bxd6+ Kg8 21. g3 Ng6 22. Bd3 $16 {Stockfish10}) (18. Bc3 Nxd6 {Fritz13} (18... Ng6 { Stockfish10}) 19. exd6 Bxc3+ 20. bxc3 Bd7 21. Ne5 Ke8 22. g3 Ng6 23. Nxg6 fxg6 24. Bg2 $16 {Stockfish10}) 18... Kg8 19. g3 (19. Ne4 b6 20. g3 Nh5 21. Ba3 c5 22. Bd3 (22. g4 Bb7 $19) 22... Bb7 23. O-O Ne7 24. Rfe1 $16 {Stockfish10}) (19. Nxc8 Rxc8 20. Rd7 {Fritz13} b5 21. a5 a6 22. Ra7 Ng6 23. g4 Nfh4 24. Nxh4 gxh4 25. Rxa6 Nxe5 26. Ra7 Nxc4 27. Bxc4 bxc4 28. O-O Bxb2 29. Rb7 Bf6 30. a6 c3 31. a7 Kg7 32. Rc1 $16 {Stockfish10}) 19... Ng6 $11 20. Nxf5 (20. h4 {Stockfish10, Fritz13 & Komodo12} g4 21. Nxf5 exf5 22. Rd8+ Nf8 (22... Kh7 23. Ng5+ $18) ( 22... Bf8 23. Bxf8 Nxf8 24. Nd4 Kh7 25. Bd3 Ng6 26. Rxh8+ Kxh8 27. Kd2 Nxe5 28. Re1 f6 $14) 23. Nd4 Kh7 24. f4 Ne6 25. Rxh8+ Bxh8 26. Nxe6 Bxe6 27. Bd3 f6 $11 {Stockfish10}) 20... exf5 21. Bd6 {Fritz13} (21. h4 gxh4 22. b3 Be6 23. Nxh4 Nxh4 24. Rxh4 Bxe5 $11 {Stockfish10}) 21... g4 {Fritz13} (21... f6 {Stockfish10 } 22. c5 Nxe5 (22... Be6 23. Nd4 Bd5 24. Rg1 Nxe5 25. Bg2 Bxg2 26. Rxg2 Re8 27. Kf1 $11 {Stockfish10}) 23. Nxe5 fxe5 24. Bc4+ Kh7 25. h4 g4 26. O-O $11 { Stockfish10}) 22. Nh4 Nxe5 23. b3 (23. Bxe5 {both Engines} Bxe5 24. Bd3 Be6 25. Nxf5 gxh3 26. b3 Re8 $11 {Stockfish10}) 23... Be6 (23... Ng6 {both Engines} 24. Ng2 Bc3+ 25. Ke2 Kg7 $17 {Stockfish10}) (23... h5 $11 {Stockfish10}) 24. Bg2 ( 24. Bxe5 {both Engines} Bxe5 25. Bd3 Bc3+ 26. Kf1 Rd8 $15) 24... Ng6 $17 25. hxg4 Nxh4 (25... fxg4 {Fritz13} 26. Nxg6 Bc3+ 27. Kf1 fxg6 $17) (25... Bc3+ 26. Kf1 Nxh4 $17 {Stockfish10}) 26. Rxh4 Bc3+ (26... fxg4) 27. Kf1 fxg4 28. Be4 ( 28. Rh5) 28... Re8 (28... f5 29. Bc2 Kf7 {Stockfish10}) 29. Bc2 h5 {Stockfish10 } 30. Rh1 Kg7 31. Kg2 Bc8 $19 {Stockfish10} (31... b6 {Fritz13} 32. Rd3 Bf6 $17 ) 32. Rd3 Bf6 33. Rd2 (33. Re3 {both Engines, expected} Rxe3 34. fxe3 Be6 $19 { Stockfish10}) 33... Bg5 (33... c5 {both Engines} 34. Bxc5 (34. Bd1 b6 35. Bf4 Bb7+ 36. f3 Rd8 $19 {Stockfish10}) 34... b6 35. Be3 Bb7+ $19) 34. Rdd1 Re2 ( 34... b6 {both Engines} 35. c5 Be6) 35. Bd3 Rd2 (35... Rb2 $2 36. Be5+) 36. Rxd2 Bxd2 {getting rid of a pair of Rs helps Bl take the pressure off the h pawn , though Bl could have played for h4 earlier} 37. Bc5 (37. Bb8) 37... b6 38. Bd4+ f6 39. Be4 c5 40. Bb2 (40. Rd1 {both Engines, holds on longer} Bg5 41. Bc3 Re8 42. Bc6 Re6 43. Rd5 Kf7 44. Rxg5 fxg5 45. Bd5 Bd7 $19 {h4 will be coming}) 40... Bg5 (40... Re8 $1 {both Engines- don't defend weak pawns, attack elsewhere with Rs} 41. Bd5 Re2 42. Bc1 (42. Rf1 Bf5 $19) (42. Rxh5 Be3 $19) 42... Bxc1 43. Rxc1 a5 $19) 41. Rd1 (41. Bd5 Re8 (41... Kg6) 42. Rxh5 Kg6 43. Rh1 Re2 44. Bc1 Bxc1 45. Rxc1 Rb2 46. Rc3 Bf5 $17 {Stockfish10}) 41... Re8 $19 42. f3 (42. Bd5 Re2 43. Bc1 Bxc1 44. Rxc1 a5 $19) 42... gxf3+ 43. Bxf3 Bg4 44. Bc1 (44. Rd3 Re1 45. Bc3 Rc1 {and Wh is running out of moves}) 44... Bxc1 45. Rxc1 Re3 46. Bxg4 {Fritz13} (46. Bc6 {Stockfish10 suggests that Wh might be best keeping the B for some defensive tasks, though} a5 47. Rc2 (47. Rb1 Kg6 48. Rb2 Re2+ 49. Rxe2 Bxe2 50. Be4+ Kg5 51. Bc2 Kg4 {should win easily, as Wh's Q side pawns are easy targets once the outside pawn lures the K away}) 47... Rxb3 48. Rd2 Kg6 $19) 46... hxg4 {the pawn cuts off the Wh K & helps the Bl K enter in} 47. Rd1 {activity is the best bet} (47. Rb1 {Fritz13 sits and defends passively}) (47. a5 {Stockfish10 gets rid of as many pawns as possible} ) 47... Rxb3 (47... a5 {may be even stronger, keeping an extra Q side pawn, but in R endings it's not the number of pawns,that matters most; it's how advanced they are & relative K positions.}) 48. Rd7+ Kg6 49. Rxa7 Rb4 (49... Rb2+ {, but the ch may come in useful later} 50. Kf1 Rc2 51. a5 bxa5 52. Rxa5 Rxc4 53. Ra3 Kf5 {more or less the game continuation}) 50. Ra6 Kf5 {with the Wh R away on the Q side there are mating possibilities for Bl} 51. a5 bxa5 52. Rxa5 Rxc4 53. Ra8 (53. Ra2 Rc3 54. Re2 c4 $19 {and something has to give} 55. Re8 Rd3 56. Kf2 c3 57. Rc8 Rf3+) 53... Rc2+ 54. Kf1 Ke4 55. Rf8 f5 56. Rf7 c4 57. Kg1 Rc3 {playing ultra safe} (57... c3 58. Kf1 Rb2 59. Rc7 c2 {is quickest} ) 58. Kg2 Rf3 {cutting off the K} 59. Rd7 c3 60. Rd8 c2 61. Rc8 Kd3 62. Rd8+ Ke2 63. Re8+ Kd2 0-1 [Event "Dyfed League:Aberystwyth-CardiganA"] [Site "online arena"] [Date "2019.03.19"] [Round "?"] [White "Watkin-Jones, A."] [Black "Haigh, A."] [Result "1-0"] [ECO "D37"] [WhiteElo "1928"] [BlackElo "1788"] [Annotator "kemen"] [PlyCount "48"] [EventDate "2019.??.??"] {[%evp 0,11,45,20,26,-21,-19,4,-3,-3,45,15,38,-50]} 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Nbd7 5. Bf4 (5. Bg5 {main}) 5... Bb4 6. Qc2 (6. e3 {main}) 6... O-O 7. e3 c6 (7... c5 {main}) 8. Bd3 (8. a3) 8... dxc4 9. Bxc4 Nd5 10. O-O ({2-0} 10. Bg3) 10... Nxf4 11. exf4 Nf6 (11... Bxc3 12. bxc3 Nb6 13. Bd3 g6 14. Ne5 Qf6 15. g3 Qg7 16. Rab1 {Aanonsen-Olsen, NOR Seniors , Lillehammer 2013,1-0}) 12. g3 (12. Rad1 {Komodo12} Nd5 13. g3 h6 14. Ne5 Qe7 15. Bd3 Bd6 16. Qe2 Nf6 17. Bb1 Rd8 18. Qc2 g6 19. Rfe1 {Bagaturov-Yagiz, Izmir op 2003,1-0}) (12. Ne4 { Stockfish10}) 12... Qc7 13. Ne4 Be7 (13... Nxe4 14. Qxe4 $14 {both Engines}) 14. Rfd1 b6 15. Bd3 h6 (15... Nd5 $14 {both Engines}) 16. Ne5 (16. Rac1 { both Engines}) 16... Bb7 17. Rac1 Rac8 18. Qe2 (18. h4 {Stockfish10}) (18. Nxf6+ Bxf6 19. Bh7+ Kh8 20. Be4 c5 21. dxc5 Bxe4 22. Qxe4 Bxe5 23. Qxe5 Qxe5 24. fxe5 Rxc5 25. Rxc5 bxc5 26. Rd7 $14 {Komodo12}) 18... Nxe4 19. Bxe4 $16 { Komodo12} (19. Qxe4 {Rudy & Stockfish10} f5 20. Qe3 $16) 19... Bf6 20. Qf3 Rfd8 (20... Bxe5 21. fxe5 Rfd8 22. b4 $16 {Komodo12}) 21. Rc3 (21. Nxc6 Bxc6 22. Rxc6 Qb8 23. d5 (23. Rxc8 Qxc8 24. d5 $16 (24. Qc3 Qc5 $11) 24... Bxb2 25. Qb3 Bf6 26. d6 $16 {Komodo12})) 21... Bxe5 22. dxe5 $14 (22. fxe5 $16 {Komodo12}) 22... Rxd1+ 23. Qxd1 c5 (23... Rd8 24. Rd3 Rxd3 25. Qxd3 c5 26. Bxb7 Qxb7 27. Qd8+ Kh7 28. Qd3+ g6 $11 {Komodo1`2}) 24. Bxb7 Rd8 $2 {a Zwischenzug that loses a piece ( just like Hammett vs Watkin-Jones, Dyfed League 2019,0-1 a few weeks earlier} (24... Qxb7 25. Rd3 a5 26. Rd7 Qc6 27. Rd6 Qb5 28. Qc2 c4 29. Kg2 $14) 1-0 [Event "Dyfed League:Aberystwyth-CardiganA"] [Site "online arena"] [Date "2019.03.19"] [Round "?"] [White "Brewer, Ben"] [Black "Van Kemenade, J."] [Result "1-0"] [ECO "A46"] [WhiteElo "1555"] [BlackElo "1761"] [Annotator "kemen"] [PlyCount "81"] [EventDate "2019.??.??"] {[%evp 0,4,31,27,28,32,46]} 1. d4 Nf6 2. Nf3 h6 {preventing Bg5} 3. c4 d6 4. Nc3 Nbd7 (4... Bf5 {main}) 5. e4 e5 6. dxe5 $146 {after the exchange in the centre, Bl has easy equality. The pawns are balanced, but Wh has a potential hole on d4.} (6. Be2) (6. d5 Be7 7. Be2 {Taylor-J Van Kemenade, West Wales Open 2011,1-0}) (6. Be3 g6 7. h3 Bg7 8. Qd2 Nh5 {Piankov-R Van Kemenade, Arena 2016,0-1}) (6. g3 Be7 7. Bg2 O-O 8. O-O {Johnsen-Morcom, Guernsey op 2017,1-0}) 6... dxe5 $11 7. a3 a5 8. Be2 Be7 (8... Bc5 {could be played}) 9. O-O O-O 10. Qc2 c6 11. Rd1 Qc7 12. Be3 (12. Rb1 Nh5 (12... a4 13. Nxa4 Nxe4 14. Qxe4 Rxa4 15. b4 f5 16. Qc2 Ra8 $11) 13. b4 Nf4 14. Bf1 axb4 15. axb4 Rd8 16. c5 Nf8 $11 {Stockfish10}) 12... Ng4 (12... Bc5 13. Bxc5 Nxc5 14. b4 axb4 15. axb4 Rxa1 16. Rxa1 Ne6 $11 {Stockfish10- though Wh has to be careful in endings as his B may easily become inferior}) 13. Bd2 Bc5 14. Be1 Re8 15. Na4 Be7 (15... b6 { Stockfish10} 16. Nh4 (16. Nxc5 Nxc5 17. b4 axb4 18. axb4 Rxa1 19. Rxa1 Ne6 20. c5 bxc5 (20... b5) 21. bxc5 Qe7 22. h3 Nf6 23. Bc4 (23. Nxe5 Nd4 $19) 23... Nf4 24. Bf1 Nh7 $11 {and Wh needs to watch that Bl doesn't get a powerful K side initiative}) 16... Ngf6 17. Nf5 Bf8 18. b4 axb4 19. axb4 Nh7 $11 {Stockfish10}) 16. h3 (16. c5 $16 {Stockfish10}) (16. b4 axb4 17. axb4 b6 {Stockfish10}) 16... Ngf6 17. b4 (17. c5) 17... axb4 18. axb4 c5 19. Nxc5 {this N is better kept on to go to d5 eventually} (19. b5 {Stockfish10} Nf8 20. Nc3 (20. Bc3 Ng6 21. Bd2 Nh5 22. Bf1 Nhf4 23. Nc3 Rxa1 24. Rxa1 Qb8 25. Nd5 Ne6 $14) 20... Rxa1 21. Rxa1 Ne6 22. Qd1 Rd8 23. Nd2 Nd4 $11) (19. bxc5 Nxc5 20. Nc3 Bd7 $11 {Stockfish10}) 19... Rxa1 20. Rxa1 Nxc5 21. bxc5 Bxc5 $15 {the Bl pieces are a little better placed than the Wh ones} 22. Ba5 b6 (22... Qc6 23. Nd2 Be6 24. Bc3 Nd7 25. Qb2 f6 $15 {Stockfish10}) 23. Bc3 Bb7 24. Nd2 Nd7 (24... Rd8 $5) 25. Nb3 Be7 26. Rb1 Bg5 (26... Rd8) 27. g3 {weakens the K side, when there is no need to stop the B fromgoing to f4} (27. c5 $5 {Stockfish10 wants to sacrifice this pawn to get some piece play , but when it gets there thinks the better of it.} Nxc5 28. Nxc5 Qxc5 29. Rb5 Bxe4 30. Qb2 Qd6 31. Rxb6 (31. Bxe5 Qg6 32. Bf1 Re6 $15) 31... Qe7 32. Qb4 Qxb4 33. Rxb4 Bg6 $15 {Stockfish10}) (27. Bb4 Rc8 28. Rd1 Bc6 $11 {Stockfish10}) 27... Qc6 28. Bd3 (28. f3 {may be better, though Wh still needs to be careful} Qe6 29. Kg2 Bc8 30. Rh1 Be7 31. h4 Rd8 $15) 28... f5 $17 { with all the Wh pieces on the Q side the K is in danger} 29. Re1 (29. Bf1 Qxe4 30. Qxe4 Bxe4 31. Rd1 Rd8 $17 {Stockfish10 thinks is best defence}) 29... f4 ( 29... Nf6 $1 $19 {Stockfish10} 30. f3 fxe4 31. fxe4 (31. Bxe4 Nxe4 32. Qxe4 ( 32. Rxe4 Rf8 33. Kg2 Qa4 $19) (32. fxe4 Qxc4 $19) 32... Qd7 33. Qg6 Re7 34. g4 e4 35. Nd4 Bf6 $19 {there are too many holes & loose pieces in the Wh position} ) 31... Nh5 32. h4 Be7 33. Re3 Nf6 34. Qe2 h5 (34... Qc7 35. Be1 Ra8 $19) 35. Kg2 Rd8 36. Be1 Ng4 37. Rf3 Qg6 38. Bb1 Kh8 $19 {Stockfish10- however, though all of Wh's pieces remain awkwardly placed, there seems to be no clearcut winning manouevre}) 30. Bb4 (30. g4 Rd8 31. f3 Be7 32. Bf1 Qe6 $15 { Stockfish10- Wh has a very bad KB for the ending, but the K side seems sufficiently barricaded}) 30... Qg6 (30... fxg3 31. fxg3 Qg6 32. Kh2 h5 33. Nd2 h4 34. g4 Nf8 $17 {Stockfish10}) 31. Kg2 (31. g4 Bh4 32. Rc1 h5 33. f3 Rc8 34. c5 bxc5 35. Bc4+ Kh7 36. Bc3 Ra8 $15 {Stockfish10}) 31... Nf6 $19 (31... Bh4 $19 {Stockfish10} 32. g4 (32. c5 fxg3 33. f3 Nf6 34. Nc1 Nh5 35. Ne2 Rd8 36. Bc4+ Kh7 37. Rd1 Rxd1 38. Qxd1 Bxe4 $17 {Stockfish10}) 32... h5 33. Rg1 hxg4 34. c5 (34. Be1 Nf6 35. Nd2 Rd8 36. Kf1 g3 37. f3 Nd7 38. Kg2 Qh5 39. c5 Nxc5 40. Be2 Bc8 $19) 34... bxc5 35. Bxc5 Nxc5 36. Nxc5 Bc8 $19 {Stockfish10}) 32. c5 bxc5 (32... fxg3 33. fxg3 Bf4 34. Qf2 Rd8 35. Bb1 Nxe4 $19 (35... Bc8 36. c6 Nh5 37. g4 Bxg4 38. hxg4 Qxg4+ 39. Kf1 Rc8 40. Ba2 Kh7 41. Nd2 Ng3+ 42. Kg1 Rxc6 43. Bf7 Rf6 $19 {Stockfish10}) 36. Qf3 Qxg3+ 37. Qxg3 Nxg3+ 38. Kg1 Bd5 39. Bc2 Rc8 $19 {Stockfish10}) 33. Bxc5 (33. Nxc5 Bc8 34. Bc4+ Kh7 35. Qb3 Qh5 36. Ne6 f3+ 37. Qxf3 Qxf3+ 38. Kxf3 Bxe6 39. Bxe6 Rxe6 40. h4 Rb6 41. hxg5 Rxb4 42. gxf6 gxf6 $11 {Stockfish10}) 33... Bc8 $19 {Bl was running low on time here } (33... Bh4 $1 $19 {Stockfish10} 34. g4 (34. Nc1 fxg3 35. f3 Nh5 $19) 34... h5 35. g5 Nh7 $1 (35... Qxg5+ 36. Kh1 Rc8 37. Nd2 Qf5 38. Kh2 Qd7 39. Nf3 Rxc5 40. Qxc5 Bg3+ 41. fxg3 Qxd3 $19 {Stockfish10}) 36. Kh2 Nxg5 37. Qe2 f3 38. Qa2 Kh8 39. Bf1 Ra8 40. Qb2 Nxe4 $19 {Stockfish10}) 34. Nd2 Bh4 (34... fxg3 35. fxg3 Nh5 36. Nf1 (36. g4 Nf4+ 37. Kh2 Nxd3 38. Qxd3 Rd8 $19) 36... Nf4+ 37. gxf4 ( 37. Kh2 Nxd3 38. Qxd3 Qh5 39. h4 Bxh4 $19) 37... Bh4+ 38. Kh2 Bxe1 $19 { Stockfish10}) 35. Bc4+ Kh8 36. Qd3 Nh5 (36... fxg3 37. fxg3 Nh5 38. Qf3 Rd8 39. Nf1 Nf4+ 40. Kh2 Qc6 41. Bf2 Bxg3+ (41... Qxc4 42. gxf4 Bxf2 43. Qxf2 exf4 44. Qxf4 Qa2+ 45. Kh1 (45. Kg3 Qe6 46. Qf5 Qe7 47. Qf2 Rf8 48. Qe3 Qe5+ 49. Kg2 Qh5 50. Nd2 Rf6 $19) 45... Bxh3 $19) 42. Bxg3 Qxc4 43. Bxf4 exf4 44. Qxf4 Qa2+ $19 {transposes to previous}) 37. g4 Nf6 (37... f3+ 38. Qxf3 Nf4+ 39. Kh2 Qc6 40. Be3 Rf8 41. Ra1 Ne6 42. Qe2 Nd4 43. Qd3 h5 44. Rg1 hxg4 45. hxg4 Qg6 $14 { Stockfish10}) (37... Rd8 {Rudy & Stockfish10, bringing the last piece in to the attack} 38. Qc3 (38. Qe2 $2 f3+ 39. Qxf3 Nf4+ 40. Kh2 Rxd2 $19) 38... Bxg4 39. hxg4 Qxg4+ 40. Kf1 Rxd2 41. Qxd2 Qf3 $1 {threat Ng3ch, Stockfish10} (41... f3 {Rudy's idea, allows Wh to escape} 42. Ra1 Qg2+ 43. Ke1 Qg1+ 44. Bf1 Nf4 45. Qd7 Bxf2+ 46. Bxf2 Ng2+ 47. Kd2 Qxf2+ 48. Kc3 $18) 42. Kg1 Qg4+ 43. Kf1 (43. Kh2 Bg3+ 44. fxg3 Qxg3+ 45. Kh1 Qh4+ 46. Kg2 Qg3+ 47. Kf1 Qf3+ 48. Kg1 Qg3+ $11 49. Qg2 Qxe1+ 50. Bf1 Nf6 51. Bf8 Nh5 $11 {Stockfish10}) 43... Qf3 $11) 38. Nf3 $16 Bg5 (38... Nxg4 {last chance, but Bl, correctly , didn't see it working- though there are complications} 39. Nxh4 (39. hxg4 Qxg4+ 40. Kh1 Rd8 41. Qe2 Qh3+ 42. Nh2 Bb7 43. Rg1 $16 {Stockfish10}) 39... Ne3+ (39... Qg5 40. hxg4 Qxg4+ 41. Kf1 Qxh4 42. Ke2 Rd8 43. Bd5 $18 {Stockfish10}) 40. Kh2 Qh5 41. Be7 $1 (41. Nf5 Nxf5 42. exf5 Bxf5 43. Qc3 $18) (41. fxe3 $2 Qxh4 42. Qd2 (42. exf4 Qxe1 $19) 42... Qxh3+ (42... Rd8 $1 43. Bd5 f3 44. Rf1 Qxh3+ 45. Kg1 Ba6 46. Rf2 Rb8 47. Ba2 Kh7 (47... Be2 $19)) 43. Kg1 Qg3+ 44. Kh1 Bg4 45. Rf1 Bf3+ 46. Rxf3 Qxf3+ 47. Kg1 Rc8 $19) 41... Nxc4 42. Qxc4 Bxh3 43. Kxh3 Rxe7 44. Qc8+ Re8 45. Qg4 $18 {Stockfish10}) 39. Bb5 $18 Rg8 40. Nxe5 Qh7 41. Nf7# 1-0 [Event "Dyfed League:Aberystwyth-CardiganA"] [Site "online arena"] [Date "2019.03.19"] [Round "?"] [White "Francis, Matthew"] [Black "Osinga, Awne"] [Result "1-0"] [ECO "C72"] [WhiteElo "1712"] [BlackElo "1350"] [Annotator "kemen"] [PlyCount "70"] [EventDate "2019.??.??"] {[%evp 0,17,30,34,24,28,11,11,18,-12,41,0,8,8,13,-6,3,-8,41,34]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 {main} (3... d6 {has been Awne's usual response}) 4. Ba4 d6 5. c3 Bd7 6. O-O (6. d4) 6... Be7 (6... g6 {main}) 7. h3 (7. d4) 7... Nf6 8. Re1 Na7 {an uncommon way of offering an exchange- the N is not doing a great deal on a7} (8... O-O) 9. Bc2 (9. Bb3 Be6 10. d4 exd4 11. cxd4 d5 12. Nc3 c6 13. Ng5 O-O 14. Qc2 h6 15. exd5 cxd5 16. Nxe6 fxe6 17. Rxe6 { Marjancevic-Muraja, CRO cup 2018,1-0}) 9... O-O (9... h6 10. d4 Bc6 11. Nbd2 Nb5 12. dxe5 dxe5 13. Nxe5 {Szabo Thomka-Nagy,HUN ch tm 2017,1-0}) 10. d4 exd4 (10... Nc6 11. Nbd2 Qc8 12. Kh2 Be8 13. Nf1 Nd7 14. Ng3 f6 15. Be3 b6 { Vereschildt-Elshout, NED ch U20 girls, Nijmegen 1993,1/2-1/2}) 11. cxd4 h6 $146 (11... Ne8) (11... Bb5 {main lines}) 12. Nc3 (12. e5 dxe5 13. dxe5 Ne8 14. Qd3 g6 15. Bxh6 $18 {Komodo12}) 12... Nh7 {all of Bl's minor pieces are now lined up along the second rank} 13. e5 f5 $18 (13... Re8 14. Nd5 Nc6 15. Qd3 Nf8 16. Bd2) 14. Bf4 (14. exf6 Nxf6 15. Qd3 Nc6 16. Bxh6 $18 {Komodo12}) 14... Bg5 15. Nxg5 (15. Bxg5 {is more accurate} Nxg5 16. Bb3+ Kh7 17. e6 Nxf3+ 18. Qxf3 Nc6 19. Qe3 Bc8 20. e7 Nxe7 21. Qxe7 $18 {Komodo12}) 15... Nxg5 (15... hxg5 16. Bh2 dxe5 17. Bb3+ Kh8 18. dxe5 Bc6 19. Qxd8 Raxd8 20. e6 Rfe8 21. Bxc7 $18 { Komodo12}) 16. Bb3+ Kh8 17. e6 $18 Nxe6 18. Bxe6 Nc6 19. Qd2 (19. d5) (19. Bxd7 ) 19... Rf6 20. Bxd7 (20. d5) 20... Qxd7 21. Re2 g5 22. Bh2 (22. d5) 22... f4 23. Ne4 Rf7 24. Rae1 (24. f3 {allows the h2 B to return to the centre}) 24... Rg8 25. Qc3 (25. f3) 25... d5 26. Nc5 Qc8 27. Re6 Rh7 28. Nd3 (28. Nxb7) 28... h5 {(draw?)} 29. Bxf4 {returning material in order to force a win against a collapsed Bl K side- though not strictly neccessary} (29. h4 {undermines those pawns as well}) 29... gxf4 30. Nxf4 $18 Nd8 (30... Qf8 31. Ng6+ Rxg6 32. Rxg6 Ne7 33. Rge6 Ng8 34. R1e5 $18 {Komodo12}) 31. Re8 (31. Ng6+ {forces a quick win } Kg7 (31... Rxg6 32. Rxg6) 32. Ne7 (32. Re7+ Nf7 (32... Kxg6 33. Qd3+ Qf5 34. R1e6+ Nxe6 35. Rxe6+ Kg7 36. Qxf5 Rd8 37. Re7+ Kg8 38. Qxh7+ Kf8 39. Qf7#) 33. Qf3 Kxg6 34. R1e6+ Qxe6 35. Rxe6+ Kg7 36. Qf6+ Kf8 37. Re7 Rhg7 38. Rxc7 Rxg2+ 39. Kf1 Rg1+ 40. Ke2 $18 {Komodo12})) 31... Qd7 (31... Qf5 32. Rxg8+ Kxg8 33. Re8+ Kf7 34. Rxd8 Qxf4 35. g3 Qf6 36. Qxc7+ Kg6 37. Qc2+ Kh6 38. Qd2+ Kg7 39. Rxd5 $18 {Komodo12}) 32. Rxg8+ (32. Ng6+ Kg7 33. R1e7+ Qxe7 34. Rxe7+ Nf7 ( 34... Kxg6 35. Qd3+) 35. Ne5 Rf8 36. Qg3+ Kh8 37. Qg6 $18 {Komodo12}) 32... Kxg8 33. Qf3 (33. Qg3+ Rg7 34. Qh4 $18 {Komodo12}) 33... h4 34. Qxd5+ (34. Nxd5 ) 34... Kf8 (34... Qxd5 35. Nxd5 Kf8 36. Re4 $18 {with 2 pawns up}) 35. Ng6+ Kg7 1-0