Saturday, 21 April 2018

A Hardman is Good to Find

Steynton B could only field three players against Aberystwyth at the Emlyn Cafe, Tanygroes on Wednesday 11 April, meaning that we needed one and a points to seal the match. On top board, Rudy van Kemenade won a pawn early on against John Miller in a King's Indian and had a dominating position throughout, picking up more material as Black looked vainly for counterplay. I got good pressure in a Sicilian against David Pinch's King's Indian Attack setup, but missed a tactic which won him a pawn. I should still have been OK, but was thrown off my stride by my mistake and blundered to bring the game to a quick conclusion. Dan Hardman, playing his first game for the Club, got a dangerous passed pawn against Gwyn Evans's Sicilian, and Black's attempt at a kingside counterattack only blundered a piece, a good start for the new player against a higher rated opponent. Aberystwyth won the match 3-1 with the default on Board 4.

[Event "Dyfed League:SteyntonB-Aberystwyth"] [Site "?"] [Date "2018.04.11"] [Round "?"] [White "Van Kemenade, R."] [Black "Miller, John S"] [Result "1-0"] [ECO "E90"] [WhiteElo "2015"] [BlackElo "1648"] [Annotator "Rudy"] [PlyCount "73"] [EventDate "2018.04.12"] 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 (5. f3 {Samisch} O-O 6. Be3 e5 7. Nge2 (7. d5 Ne8 8. g4 {Greatorex-Miller, Dyfed Open 2018,1-0}) 7... Nc6 8. d5 Ne7 {Hurn-Miller, Dyfed Open 2018,0-1}) 5... O-O 6. h3 {the Makogonov system, which seemed to surprise Bl} (6. Be2 {more usual}) 6... Nc6 {played quite often, but possibly incorrect} (6... e5 {main, also against 6. Be2}) (6... Nbd7 7. Bg5 h6 {disliked by Bronstein in pm analysis & by Kotronias in his theory book, as it weakens g6} 8. Be3 e5 9. d5 Nh5 10. Nd2 a6 11. g3 Qe8 12. Be2 Kh7 $5 13. Nb3 Ndf6 14. c5 Bd7 15. Na5 Rb8 16. Nc4 Bb5 {leading to a complex series of sacrifices by Bl & then countersacrifices by Wh} 17. cxd6 Bxc4 18. dxc7 Rc8 19. Bxc4 Rxc7 20. Bd3 Nxe4 21. Bxe4 f5 22. Bc2 f4 23. Bb6 fxg3 24. Bxc7 Qf7 25. Bb6 gxf2+ 26. Kd2 Ng3 27. Qg4 Nxh1 28. Rxh1 f1=Q 29. Rxf1 Qxf1 30. Qxg6+ Kg8 31. Qh7+ Kf7 32. Bg6+ Ke7 33. Qxg7+ Kd6 34. Qc7# {Bronstein-Van Kemenade, Manchester 1989,1-0}) 7. Bg5 e5 $2 {a mistake, similar to what can happen in a Bg5 line the Samisch} (7... h6 {weakens g6} 8. Be3 a6 9. Qc2 b5 10. cxb5 axb5 11. Bxb5 Nb4 12. Qd2 c6 13. Be2 Be6 14. a3 Bb3 15. Rc1 Na2 16. Nxa2 Bxa2 17. Bd3 {Van Kemenade-Stuttard, Liverpool Fide 2006, 1-0}) (7... Nd7 8. Qd2 f6 9. Be3 e5 10. d5 Ne7 11. O-O-O b6 12. g4 {Van Kemenade-Jeske, EU Seniors tm, Wales- Deutschland Frauen, Dresden 2013, 0-1 when Wh overpressed}) 8. dxe5 (8. d5 {played by 12 people who missed the tactic, though} Ne7 { 70 % for Wh} (8... Nd4 {however ! win ! loss})) 8... dxe5 (8... Nxe5 9. Nxe5 { leads to the same ; 4-1}) 9. Qxd8 {again 2 players missed this idea} Nxd8 (9... Rxd8 10. Bxf6 {2 draws} (10. Nd5 $1 {Komodo11; 4-0})) 10. Bxf6 (10. Nxe5 Nxe4 11. Nxe4 Bxe5 $11 {Rauleac-Lupu, ROM ch U14, Calimanesti 2000,0-1}) 10... Bxf6 11. Nd5 Bg7 (11... Kg7 12. Nxc7 Rb8 13. Nd5 Re8 14. O-O-O $16 {Lonnee-Sileika, NED-LTU ICCF email 2016, 0-1}) 12. Nxc7 Rb8 13. O-O-O (13. Bd3 Ne6 (13... Nc6 14. Rd1 b6 15. O-O Bb7 16. b3 Rbc8 17. Nd5 $16 {Bagoly-Vizkeleti, Eger Tel op 2009 , 1-0}) 14. Nxe6 Bxe6 15. b3 Rfd8 16. Rd1 Rd6 17. Ke2 {rated = by Komodo11; Dobosz-Klocker, AUT ch tm 2007,1-0}) (13. Rd1 Ne6 14. Nxe6 Bxe6 15. Bd3 Rfd8 16. Ke2 f6 17. b3 Bf8 18. Bc2 {Spraggett-Sanchez Jerez, Portugal op, Oeiras 2015,1-0 - Komodo11 again rates position as =}) 13... Nc6 (13... Ne6 14. Nd5 Nc5 15. Nc3 $14 {Komodo11}) 14. Be2 (14. a3 f6 15. b4 $16 {Komodo11}) (14. c5 {at once might gain Wh a tempo if f5 as in the game, but Bl has an alternative in} Nd4 15. Nxd4 exd4 16. Kb1 Bd7 17. Bd3 Rfc8 (17... Bc6 18. Nd5 Rfe8 $14) 18. Nd5 Rxc5 19. b4 Rc6 20. Ne7+ Kf8 21. Nxc6 bxc6 22. a3 c5 23. Rd2 $16 {Komodo11}) 14... f5 15. exf5 (15. Nd2 fxe4 16. Nxe4 Bf5 17. f3 Bxe4 18. fxe4 Rf2 19. Bg4 (19. Bf3 Nd4 $11) 19... Rxg2 20. Be6+ Kh8 21. Rhf1 Nd4 22. Bd5 Rf8 23. Rxf8+ Bxf8 24. Ne6 Nxe6 25. Bxe6 Bc5 26. Rd7 b6 27. Rxa7 Rg1+ $11 { Komodo11}) 15... gxf5 (15... Bxf5 16. Nd5 Bh6+ 17. Ne3 Be4 18. Rd2 Nd4 $11 { Komodo11}) 16. c5 (16. Ng5 Nd4 17. Rhe1 e4 18. Nd5 Be5 (18... h6 19. Ne7+ Kh8 20. Ng6+ Kg8 21. Nxe4 fxe4 22. Nxf8 Kxf8 23. Bg4 Bxg4 24. hxg4 Re8 25. Kb1 $14 {Komodo11}) 19. Kb1 h6 20. f4 $14 {Komodo11}) 16... e4 17. Bc4+ Kh8 18. Ng5 Bh6 {the B looks to be on the wrong diagonal here} (18... Be5 {Komodo11} 19. Nce6 Rf6 20. g3 Bxe6 21. Nxe6 Re8 22. Nf4 Bd4 23. Rd2 e3 24. Re2 Bxc5 25. Nd5 Rg6 26. Nxe3 Bxe3+ 27. Rxe3 Rxe3 28. fxe3 Rxg3 29. Rf1 Rxh3 30. Rxf5 Rxe3 31. Rf8+ Kg7 32. Rf7+ Kg6 33. Rxb7 $11 {Komodo11, though the long range B cooperates with the R better than the N does}) (18... Ne5 {expected by Wh} 19. Be2 (19. Bb5 {provoking the next, which becomes a weakness} a6 20. Be2 Bf6 21. h4 Be7 22. Rd5 Nc6 23. a3 $16 {Komodo11}) 19... b6 $11 {Komodo11}) 19. h4 $16 Ne5 20. Be2 Bd7 (20... Nf7 21. f4 exf3 22. Bxf3 Nxg5 23. hxg5 Bxg5+ 24. Kb1 Be3 25. b4 $16 {Komodo11- Bl has reagained the pawn but his pieces are mainly undeveloped, while the Wh ones survey an open board}) 21. Rd5 (21. Rd6 {a strong candidate, considered- Bl is then virtually forced to give up his Bl squared B} Bxg5+ ( 21... Kg7 22. Rhd1 $18 {a N invasion on e6 is difficult to deal with} (22. Kb1 Bxg5 23. hxg5 f4 24. b4 $16)) 22. hxg5 Rbc8 23. Nd5 Rxc5+ 24. Kb1 Be8 25. Nf4 Rc6 26. Rd8 $18 {Komodo11}) 21... Bg7 22. Nce6 (22. Nge6 {pm analysis} Bc6 { Komodo11} 23. Nxf8 Bxd5 24. Nxd5 Bxf8 25. b4 b6 26. cxb6 axb6 27. Rd1 $16) 22... Bc6 (22... Bxe6 23. Nxe6 Rfe8 24. Nxg7 Kxg7 25. Rhd1 $16 {Komodo11-looks better than the game continuation}) 23. Rd6 $18 Rfe8 (23... Rg8 $5) 24. Nxg7 Kxg7 25. Rhd1 Rbc8 26. Kb1 (26. b4 a6 27. h5 $18 {Komodo11}) (26. Kd2 Re7 ( 26... e3+ 27. fxe3 Bxg2 28. Rg1 Bc6 29. Kc3 Re7 30. Kd4 Kh8 31. Re6 $18) 27. Ne6+ Kh8 28. Nf4 Rg8 29. Ke3 $18 {Komodo11}) 26... h6 {still weakens g6} (26... Ng4 27. h5 Nf6 28. Ne6+ Kh8 29. Nd8 $18 (29. Ng5 $18 {Komodo11})) 27. Ne6+ Kh7 28. Nd8 (28. Nd4 Bd7 {considered, though Wh is winning after both} 29. b4 {&} ( 29. f4 exf3 30. gxf3 Rxc5 31. f4 Ba4 32. b3 Nf7 33. Rf6 Kg7 34. Re6 Nd8 35. Rd6 Nf7 36. Ne6+ Kh7 37. Nxc5 Nxd6 38. Bh5 $18 {Komodo11}) 29... Re7 30. f4 exf3 31. gxf3 $18) (28. Nf4 {is a good post for the N} Re7 29. b4 Ng4 30. Bxg4 fxg4 31. Rf6 g3 32. fxg3 e3 33. Rdd6 Rce8 (33... e2 34. Rxh6+ Kg8 35. Rdg6+ Kf7 ( 35... Rg7 36. Rxg7+ Kxg7 37. Re6) 36. Rh7+ Ke8 37. Rxe7+ Kxe7 38. Re6+ $18) 34. Rxh6+ Kg8 35. Rdg6+ Rg7 36. Rxg7+ Kxg7 37. Re6 Rxe6 38. Nxe6+ Kf6 39. Nd4 Bxg2 40. Kc2 $18 {Komodo11}) 28... Bd7 $2 {based on a miscalculation that Bl would be able to pick up the N on d8} (28... Re7 29. Nxc6 Rxc6 30. R1d5 f4 31. b4 Kg7 32. h5 $18 {as Bl is running out of moves}) 29. Rxd7+ $18 Kg8 (29... Nxd7 30. Rxd7+ Kg6 31. Nxb7 $18) 30. R7d5 (30. Nxb7 {seriously considered by Wh, & marginally best for Komodo11} Nxd7 31. Rxd7 Kf8 32. Rd5) (30. R7d6 Rxc5 31. Rxh6 $18 {alternative}) 30... Rc7 31. Rd6 (31. Rxe5 {considered for a while as the Wh pieces get very active} Rxe5 32. Bc4+ Kh7 {other moves give back an exchange} 33. Ne6 Re7 34. Rd6 {looks fine for Wh, who couldn't see much further, though the Engine feels compelled to give up a R to get rid of the pesky N} Kh8 35. Nf8) 31... Ree7 32. Rxh6 Rxc5 33. Ne6 Rc8 (33... Rc6 {aiming to win a pinned ,N loses the K instead} 34. Rd8+ Re8 (34... Kf7 35. Rf8#) 35. Rxe8+ Kf7 36. Bh5+ Ng6 37. Rxg6 Rxe6 38. Rgxe6+ Kg7 39. R6e7+ Kf6 40. Rf7# { last variation Komodo11}) 34. Nf4 (34. Rd5 $1 {Komodo11, forces the N to move & wins another pawn}) 34... Rec7 {hoping for some R activity, but all points are guarded} 35. Re6 (35. Nd5 {Komodo11, considered} Rf7 (35... Rc2 36. Ne7+ Kg7 37. Nxf5+ Kg8 38. Ne7+ Kg7 39. Nxc8 Rxe2 40. Re6 $18) 36. Bh5 Rg7 37. Nf6+ Kf8 38. Rh8+ Ke7 39. Nd5+ Kd7 40. Nb6+ Kc7 41. Nxc8) 35... Nd3 36. Nxd3 (36. Bxd3 exd3 37. Rg6+ Kh8 38. Rd6 Rc2 39. Nxd3 {also safe}) 36... Rc2 (36... exd3 37. Bxd3 {covers c2}) 37. Nf4 1-0 [Event "Dyfed League: Steynton B - Aberystwyth"] [Site "?"] [Date "2018.04.11"] [Round "?"] [White "Pinch, David"] [Black "Francis, Matthew"] [Result "1-0"] [ECO "A04"] [WhiteElo "1623"] [BlackElo "1762"] [Annotator "Rudy"] [PlyCount "53"] [EventDate "2018.??.??"] 1. e4 c5 2. d3 {going for a King's Indian Attack, though may be declaring intentions a little soon} (2. Nf3 {first?}) 2... Nc6 3. Nd2 {again it is better to delay this committal move. Playing Nf3, g3, Bg2 & 0-0 are all moves Wh is wanting to play. The e4 pawn is not under attack, & perhaps the N may be better on c3 or maybe moving the QB first is made possible.} e5 {now the N can't reach the d5 hole immediately & Wh has to spend a further 3 moves getting it there.} (3... g6 {main, also delaying showing his hand, maybe e6 is wanted}) 4. Ngf3 d6 5. g3 g6 (5... Be7 {alternative}) 6. Bg2 Bg7 7. O-O Nge7 8. Re1 {has been played, however , given the pawn structure, the R is misplaced here.e4 is not attacked, & e5 , the usual move the R supports , is not available in the near future. To have a companion to e4, Wh needs to play f4, & the R is required on the f file. If Wh wants to tsrget d5 ( & note, the N, if held in reserve, could have gone to c3 after Bl's early e5) then there is an alternative route} (8. Nc4 O-O 9. Ne3 (9. a4 {leaving the N is situ is attractive- the position has occurred in some 150 games, including ones by GMs} )) (8. c3 {700 games, prepares to open the centre in case Bl is considering f5} ) 8... O-O 9. Nf1 {the main idea, but scores only 25% for Wh. others don't fare much better} (9. c3 {27%}) (9. a4 {22%}) (9. h4 {2-0 after Bg4; but f5 nets Bl a win & a draw ( though these 4 games not played by any strong Wh players)}) 9... f5 {GMs are featured on the Bl side, but not on the Wh side with that R on e1} (9... h6 {a useful preparatory move, keeps both Ns & Bs away }) (9... d5 {Bl can happily advance in the centre, with Wh only getting 27%}) 10. Bg5 {the B removes a potential K side attacker} (10. exf5 {main,3 draws & 3 Bl wins}) 10... h6 (10... f4 $1 $17 {Stockfish9} 11. gxf4 exf4 12. c3 h6 13. Bxe7 Qxe7 14. d4 cxd4 15. Nxd4 Nxd4 16. cxd4 Be6 17. Qd3 g5 {Rieger-Reis, Landesliga Nord, Bayern 2000,0-1; Bl has 2 useful Bs & a pawn advance against Wh's weakened K side. ( the N is still not looking happy on f1}) 11. Bxe7 Qxe7 12. Ne3 (12. Nh4 Qf7 13. exf5 gxf5 14. Ne3 (14. Bf3 Ne7 15. Bh5 Qf6 16. Qe2 f4 17. Nd2 $11 {Stockfish9}) 14... Be6 15. Bh3 Ne7 16. c3 Rae8 17. Qe2 $11 { Stockfish9; although in strange looking positions, the Wh pieces are actively placed to counter Bl attempts at in vasion}) 12... f4 $17 13. Nd5 {remember it could have got here 3 moves earlier via c3} Qf7 14. Qe2 (14. c3 {looks much safer}) 14... Bg4 $17 (14... fxg3 {initial late night analysis by David & Rudy thought this could have won a piece for Bl, but Houdini & Stockfish soon dispell this idea} 15. fxg3 Bg4 16. Rf1 $11 Nd4 17. Nxd4 $16 Bxe2 18. Rxf7 cxd4 19. Rxb7 $16) (14... g5 $17 {Stockfish9}) 15. gxf4 Nd4 {doesn't achieve much, as the N will need to retreat from here} (15... exf4 {Rudy & Stockfish9} 16. c3 g5 17. h3 Bd7 $19 {a pawnroller on the K side will expose the Wh Kas the Wh pieces will be driven back, & the Bl ones come in}) 16. Qd1 Ne6 {hoping to force open the f file, but Wh escapes via a tactic} (16... exf4 17. c3 Nc6 18. Ng5 Qd7 19. Bf3 Bxf3 20. Nxf3 g5 21. Kh1 $17 {Stockfish9Wh has gained use of the g file but swapped off a key protector , the B}) (16... Bh5 17. c3 Nc6 18. Kh1 $17 Ne7 19. Nxe7+ Qxe7 20. Qb3+ Kh8 21. f5 gxf5 22. Nd2 f4 23. Bf3 Bf7 24. Qd1 Qh4 25. Qe2 Bf6 26. Rg1 h5 27. Nc4 Be7 28. a4 Rg8 $11 {Stockfish9}) 17. Nxe5 $1 Bxd1 (17... Bxe5 18. Qxg4 Nxf4 19. Nxf4 Bxf4 (19... Qxf4 20. Qxf4 (20. Qxg6+ Kh8 21. Qg3 Qd2 22. Qh3 Rf6 23. Kh1 Rg8 $11) 20... Rxf4 21. c3 Raf8 22. Re2 $14) 20. c3 $11 {Stockfish9; Bl control the Bl squares , so the extra Wh pawn will be difficult to advance} h5 21. Qh3 Be5 22. Re2 Kg7 23. Rd1 Qf6 $11) 18. Nxf7 Rxf7 (18... Bxc2 19. f5 (19. Nxd6 Bxb2 20. Rab1 Bxb1 21. Rxb1 Bd4 22. f5 gxf5 23. exf5 Ng5 24. h4 Nf7 25. Nb5 Rad8 26. Nxd4 cxd4 27. Nf4 Ne5 28. Ne6 Nxd3 29. Nxd8 Rxd8 30. Rxb7 Nf4 $11 {Stockfish9}) 19... Kxf7 20. fxe6+ Kxe6 21. Nc7+ Kd7 22. Nxa8 Rxa8 23. Bh3+ Kc7 24. Re3 Bxb2 25. Rae1 Bd4 26. Rg3 g5 $11 { Stockfish9}) 19. Raxd1 Nxf4 20. Nxf4 Rxf4 21. c3 $14 Raf8 22. Re2 b6 {weakens the Q side for possible later K entry} (22... h5 $5 23. d4 cxd4 24. cxd4 R8f7 25. e5 Re7 26. e6 Rxd4 27. Rxd4 Bxd4 28. Bxb7 Kf8 29. Bd5 Rc7 30. b4 Ke7 31. Kg2 $14) 23. d4 R8f7 (23... cxd4 24. cxd4 Bf6 25. Rc2 Bh4 26. Rdd2 Kg7 27. e5 dxe5 28. dxe5 Re8 29. Rd7+ Re7 30. e6 Kf6 31. Bd5 (31. Rcc7 Bxf2+ 32. Kh1 Bc5 $11) 31... Rxd7 32. exd7 Ke7 33. Bc6 Rd4 $14 (33... a6 $14 {Stockfish9})) 24. e5 (24. dxc5 dxc5 25. e5 $16 {Stockfish9}) 24... Re7 25. dxc5 dxc5 (25... Bxe5 26. cxb6 axb6 27. Bd5+ Kg7 28. h3 g5 $14 {Stockfish9}) 26. e6 (26. Rd8+ Kh7 ( 26... Rf8 27. Bd5+ Kh7 28. Rxf8 Bxf8 29. f4 $18) 27. e6 Bf6 28. Bc6 Bg5 29. Ra8 Rf5 30. Kg2 Kg7 31. Bd7 a5 32. Rb8 Rd5 33. Bb5 Rd6 34. Bc4 $18 Bc1 35. a4 g5 36. Kf3 h5 37. h3 Kg6 38. Rh8 Kg7 39. Rc8 Rd1 40. Ke4 h4 41. Rb8 Rd6 42. Kf5 Bf4 43. f3 $18 {Stockfish9} Bc1 44. Re4 Bf4 45. Rxf4 gxf4 46. Ke5 Rc6 47. Bd5 Rcc7 48. Kd6 Ra7 49. Rd8 Kf6 50. Rf8+ Kg7 51. Rxf4 {& Wh keeps picking up stray pawns while the Bl Rs are tied down by the e6 pawn}) 26... Kf8 $2 { it ends suddenly} (26... Bf6 {one of several attempts in pm analysis by various people to save the game by blockading the pawn- best try (Stockfish9 & Komodo11)} 27. Rd7 Kg7 28. Red2 b5 29. Bc6 b4 30. Kg2 Rf5 {Stockfish9 not coming up with quick wins, trying nudging} 31. Bb5 Re5 32. Bc4 Re4 33. Bd5 Re5 34. cxb4 cxb4 35. Bb3 a5 36. f4 Re3 37. Bd5 Bh4 38. b3 Rxd7 39. exd7 Bd8 40. Bc4 g5 41. Rd6 gxf4 42. Rc6 Re7 43. Be6 Kf8 44. Kf3 Rg7 45. Kxf4 Rg6 46. Rc8 Ke7 47. Bg4 Rd6 48. Ke3 Rd5 $14 {Stockfish9 nudged}) (26... Rf8 {Rudy} 27. Rd7 (27. Re4 $18 {Stockfish9 & Komodo11}) 27... Bf6 (27... Rxd7 28. exd7 Bf6 29. Re8 Bd8 30. Bd5+ Kg7 31. f3 {further attempt on way home- Bl has stopped the pawn, but his pieces are so passive that Wh can just march the K up the board & capture Bl's Q side pawns}) 28. Red2 Kg7 29. Rxe7+ Bxe7 30. Rd7 Kf6 31. Bd5 Rd8 {holds for Bl}) 27. Rd8+ (27. Rd8+ Re8 28. e7+ Kf7 29. Bd5+ (29. Rxe8 { is even quicker according to Stockfish9}) 29... Kf6 30. Rxe8) 1-0 [Event "Dyfed League: SteyntonB-Aberystwyth"] [Site "?"] [Date "2018.04.11"] [Round "?"] [White "Hardman, Dan"] [Black "Evans, Gwyn"] [Result "1-0"] [ECO "B23"] [WhiteElo "1246"] [BlackElo "1429"] [Annotator "Rudy"] [PlyCount "87"] [EventDate "2018.04.12"] 1. e4 c5 2. Nc3 Nc6 3. f4 (3. g3 {alternative}) 3... e6 4. Nf3 Bd6 {unusual, luring pawns forward to undermine later} (4... d5 {main}) 5. e5 (5. d3) 5... Bc7 (5... Bb8 6. Bb5 (6. d4 cxd4 7. Nxd4 d6 8. Nxc6 bxc6 9. exd6 Qxd6 10. Be3 Nf6 {Le Clanche-Guidal, FRA ch tm, Bretagne 2003,0-1}) 6... Nge7 7. O-O a6 8. Bxc6 Nxc6 9. Ne4 d5 10. exd6 Bxd6 11. d3 {Urbaez Capote-Romagnone, Porlamar op 2011,1-0}) 6. Bc4 (6. Bb5 Nge7 {1 Wh win, 2 Bl wins}) 6... Nge7 (6... d5 7. exd6 Bxd6 8. d3 {3 Wh wins, 3 draws, 3 Bl wins} Nf6 9. O-O O-O 10. Ne4 Be7 11. Qe1 (11. Kh1) 11... b6 12. c3 Bb7 13. Qe2 Qc7 14. Bd2 Rad8 15. Rad1 a6 16. Bb3 Rd7 17. Bc1 {Udovicic-Saric, CRO ch U19, Vinkovci 2017,1-0}) 7. O-O O-O $11 8. Qe1 (8. Ne4 d5 9. exd6 Bxd6 10. d3 $11 {Komodo11}) 8... d6 (8... Nb4 9. Qd1 Nf5 10. d3 $11 {Komodo11}) 9. exd6 Bxd6 10. Ng5 (10. d3 $11) 10... h6 11. Nge4 Bc7 (11... Nd4 $15) 12. d3 Nd4 13. Qf2 Nef5 (13... a6 14. a4 Nec6 $15 {Komodo11}) 14. Nb5 (14. g4 Nh4 $15) (14. Nxc5 {is a risky pawn to take} Qe7 15. b4 a5 16. N3e4 axb4 17. Bb2 b5 18. Bb3 Nxb3 19. axb3 Rxa1 20. Rxa1 Bb6 21. d4 Rd8 $15 { Komodo11}) 14... Bb6 (14... Nxb5 $1 15. Bxb5 a6 16. Bc4 b5 17. Bb3 c4 18. dxc4 Bb7 19. Ng3 Nh4 (19... bxc4 20. Nxf5 cxb3 21. Nd4 bxc2 22. Nxc2 Rc8 23. Be3 Qd5 $17) 20. c5 Nxg2 21. c3 Nh4 22. Qe2 Qd7 $17 {Komodo11}) 15. Nxd4 Nxd4 (15... cxd4 16. Ng3 $11) 16. Be3 (16. a4 $14) 16... f5 (16... Nf5 17. Bxc5 Bxc5 18. Nxc5 $14 {Komodo11}) 17. Nc3 (17. Nxc5 Bxc5 18. c3 Qd6 19. cxd4 Bb6 {Komodo11- wins a pawn, but scarcely one that can be held}) 17... Bc7 18. Rac1 (18. a4 $14 ) (18. Na4 b6 19. b4 Qd7 20. bxc5 b5 21. Bxd4 bxc4 22. Nb2 cxd3 23. Nxd3 $16 { Komodo11}) 18... Qf6 19. Ne2 (19. b4 b6 20. bxc5 bxc5 21. Na4 Rb8 22. c3 Nc6 23. Nxc5 $18 {Komodo11, the c5 remains a vulnerable point in Bl's position}) 19... Nxe2+ 20. Qxe2 b6 $11 21. Qf3 Bd7 (21... Rb8) 22. c3 Kh8 23. d4 b5 24. Bb3 (24. Qb7 $5 Rfc8) 24... c4 25. Bc2 Bb6 {Bl has a backward pawn on e6, but in such a blocked position , without Ns, its difficult to exploit} 26. Rfe1 Rac8 27. Qf2 Bc6 28. Bd1 Qg6 29. Bf3 Bd7 $6 {not a good idea, retreating & leaving the Wh B in control of the diagonal} (29... Bd5 $11 {if Wh exchanges, then the e6 weakness dissapears & Wh is left unable to get d5 in, to liberate his bad QB}) 30. Rcd1 (30. d5 $16 {Komodo11}) 30... a5 31. d5 Bxe3 32. Qxe3 ( 32. Rxe3) 32... exd5 33. Rxd5 Rce8 34. Re5 Rxe5 (34... Kh7 {its often better to let the opponent do the exchanging, as doing so brings up units from the rear}) 35. fxe5 $16 {the advancing pawn can be dangerous, as seen in board 2 alongside} f4 36. Qe2 (36. Qd4 Be6 37. Qb6 Qe8 38. Qxa5 $18 {Komodo11}) 36... Bh3 {there is no real threat here, Bl should instead stop the pawn from advancing further, though that is far from easy} (36... Be6 37. Qd1 Qd3 38. Be4 Qd8 39. Qd4 Kg8 40. Rd1 Qxd4+ 41. cxd4 Kf7 42. d5 Bg4 43. Rd4 Re8 44. d6 Ke6 45. Bc6 Rb8 46. d7 Ke7 47. Bxb5 Be6 48. Kf2 $16) (36... Bc6 37. e6 Bxf3 38. e7 Re8 39. Qxf3 Qb6+ 40. Kf1 Qd6 41. Qe4 Qd3+ 42. Kf2 Qxe4 43. Rxe4 Kg8 44. h4 g5 45. hxg5 hxg5 46. Kf3 Kf7 47. Kg4 $18 {will be zugzwang shortly}) 37. e6 $18 Bxg2 $2 {a miscalculation} 38. Qxg2 (38. Bxg2 {also wins, as Bl has no time for } f3 39. e7 $18) 38... Qxg2+ 39. Kxg2 Re8 40. Bc6 (40. e7 b4 41. Bc6 {wins quickly}) 40... Re7 41. Bxb5 g5 42. Kf3 Kg7 43. h3 Kf6 44. Bxc4 1-0