[Event "Warwickshire Open Ch.U1975"] [White "Hunn, David"] [Black "Smith, Peter K"] [Site ""] [Round "2"] [Annotator ",Peter"] [Result "1-0"] [Date "2020.02.22"] [WhiteElo "1610"] [BlackElo "1646"] [PlyCount "113"] 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 0-0 9. 0-0 Nc6 10. Be3 {The critical position of the classical, Bc4 Ne2 Grunfeld. White develops the Knight on e2 instead of f3 in order to meet Bg4 with f3.Black has an initiative which is vital to avoid being over-run by White's strong centre. Black's attack on the centre limits the squares for white to develop his pieces.} cxd4 (10... Na5 {at once is more accurate, as the preliminary 10...cxd4 11cxd4 Na5 gives whites the added option of developing the Rook to c1 as in the game.} 11. Bd3 { now we see the difference reversing the move order.} cxd4 12. cxd4 {(Nyback-Kra senkovAntalya 2004. Diagram # On the board there is a standard formation, also found in other openings. White endeavours to use his superiority in the centre to launch a pawn advance and at the same time readies for the switch to an attack on the enemy king. Either pawn can initiate the advance forward. As a rule, exchanges don't favour the attacking side, but that doesn't apply in the case of the defender on g7, who can be offered the deserved retirement either from h6 or from d4. The open c-file presupposes a partial or complete elimination of the rooks, since avoiding these exchanges would mean giving up this important file. For the time being Black pursues a policy of containment and decides on the order of . . .b 6, ...e 6, . . Bb7 and . . .Qd7/d6. His trump the two-to-one majority on the queenside - can increase in value as the position is simplified. (Bogdanov Grunfeld explained p43)} b6 13. Qd2 (13. Rc1 e6 )Bb7 14. Rac1 (14. Bh6 e6 15. Bxg7 Kxg7 16. Qf4 Qe7 17. h4 Nc6 18. e5 Nb4 19. Be4 Bxe4 20. Qxe4 Rac8 21. Qg4 h5 22. Qg3 Nd5 23. Rac1 b5 24. f4 Kh7 25. Qg5 Rxc1 26. Rxc1 Qa3 27. Qg3 Qxa2 28. Qd3 b4 29. Rc5 Qa1+ (29... b3 30. f5 b2 31. Rb5 gxf5 32. Kf2 Rc8 33. Qb3 Qxb3 34. Rxb3 Rc2 35. Ke1 a5 36. Kd1 Ne3+ 37. Ke1 a4 38. Rb5 a3 39. Rb8 a2 40. Kf2 b1=Q 41. Rxb1 axb1=Q )30. Kf2 Qh1 31. Qg3 Qb1 32. Ra5 Kg7 33. Rxa7 Rb8 34. Qg5 Qe4 35. g4 Qe3+ 36. Ke1 Rc8 37. Kd1 b3 38. gxh5 Rc1+ 39. Nxc1 Nc3# { 0-1 Rogozenco,D (2552)-Votava,J (2538)/Czechia 2012} )Qd7 15. Qb4 e6 16. Bb5 Nc6 17. Qa4 Rfc8 )11. cxd4 b6 12. Rc1 Bb7 13. f3 Rc8 14. a4 Na5 15. Ba2 Qd7 16. Rxc8 Rxc8 17. d5 Qc7 18. Qd2 Qc2 19. Rc1 Qxa4 20. Rxc8+ Bxc8 21. Nd4 Bxd4 {Silly to trade off this great Bishop for no good reason. It's a major player, far superior to White's Knight, it weakens my dark squares severely and I think this move cost me the game in the long run. If I could exchange it for White's dark squared Bishop that's another matter.} (21... Bd7 22. f4 Nc4 23. Bxc4 Qxc4 24. Nf3 (24. Kf2 b5 25. e5 Qxd5 26. Qa5 e6 27. Qxa7 b4 )Qxe4 )22. Bxd4 Nb3 23. Bxb3 Qxb3 24. Bb2 Qc4 25. h3 a5 26. Kh2 Qc7+ {I am still a pawn up and shouldn't lose this game.} (26... Qc5 { I feared} 27. Qh6 {but after} f6 {White gets nowhere.} )27. f4 b5 28. Be5 Qd8 {I have allowed myself to get pushed back in defence whilst I should be on the attack on this open board.} 29. d6 f6 {Played quickly after a toilet break. I was deluded that this was a killer retort when in fact} (29... exd6 30. Bxd6 Bb7 (30... b4 31. Bxb4 Qxd2 32. Bxd2 a4 { Stockfish gives =+ but it's probably a draw due to opposite coloured Bishops.} 33. Bb4 f6 {And black's king gets into the action.} )31. e5 Be4 (31... b4 32. Bxb4 Qxd2 33. Bxd2 a4 {Is equal but not as good as ..b4 earlier as now the pawn is alraedy on e5, it's hard for the Black King to enter the fray.} 34. Bb4 )32. Qe2 Bc6 )30. dxe7 Qxe7 31. Bb2 Bb7 { I offered a draw here, which it should be.} 32. e5 (32. Qxa5 Bc6 )fxe5 33. Bxe5 a4 {Back in the game.} 34. Qd4 Ba8 { Too negative.} (34... b4 35. Qb6 a3 (35... b3 36. Bb2 { and the pawns are stopped dead in their tracks.} )36. Bd6 Qd7 (36... Qf7 37. Qd8+ Kg7 38. Be5+ Kh6 39. Qh4# )37. Qxb4 a2 38. Qb3+ Qf7 39. Qa4 Qe6 40. Be5 Kf7 { I believe that because Black has the wrong colour Bishop this will be a draw.} )35. Qb6 Qb7 (35... Kf7 {Holds} )36. Qe6+ Qf7 37. Qc8+ Qf8 38. Qd7 b4 {This should be the losing move.} (38... Qf7 39. Qxb5 Bb7 40. Qxa4 )39. Bd6 Qf5 40. Qd8+ (40. Qe8+ Kg7 41. Be5+ Kh6 42. Qe7 {Is the end.} )Kg7 41. Qxa8 b3 42. Qxa4 b2 43. Qa7+ (43. Qd4+ )Kh6 44. Be5 {Gives me counterplay. Stockfish has gone from + 23 to only +1.4} Qxe5 { Only chance.} 45. fxe5 b1=Q 46. Qe3+ Kg7 47. Qg5 Qf5 {This is the final blunder that loses. A terrible decision. I had to keep the Queens on to stand a chance of saving this game. NEVER ENTER AN ENDGAME A PAWN DOWN UNLESS YOU ARE CERTAIN IT'S WINNING OR SAVING!} (47... Qb6 {Diagram #} 48. Qh4 (48. Qg4 Qe3 49. Qg3 Qd4 {Dead draw.} )Qe6 {White is less than a pawn up here, he has a lot to do to try to win this. and I think Black has enough to draw. A difficult ending to win this..} )48. Qxf5 gxf5 49. Kg3 Kf7 50. Kf4 Ke6 51. h4 h6 52. h5 Ke7 53. Kxf5 Kf7 54. g4 Kg7 55. e6 Kf8 56. Kf6 Ke8 57. e7 1-0