晶体学

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Brief notes by King Lear

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Boris Abramovich Gelfand – Alexander Igorevich Grischuk
International Tashir Tournament; Moscow, November 5, 2014
Grünfeld Defence D83

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 0-0 6. Rc1 Be6 7. c5 c6 8. Bd3. If 8. b4 may follow 8. ... Nbd7 9. Bd3 Nh5 as in the game Ivanchuk – Grischuk, Elancourt 2013. 8. ... Bc8! A pure Steinitzian move, aiming for a centre break with ... e7-e5. For 8. ... Bg4 9. Qc2 Nfd7 see 王玥 (Wáng Yuè) – Carlsen, 南京 (Nánjīng) 2009. 9. h3. 9. Nf3 Bg4 promises anything but an uninteresting game! 9. ... Nfd7 10. Nf3 e5 11. dxe5 Nxc5 12. Bb1 Nbd7 13. b4. Probably sounder was 13. 0-0 Qb6 14. Qc2 Re8 with a fairly even game. 13. ... Ne6 14. 0-0 Nxf4 15. exf4 Nb6 16. Qd4 f6! Opening up the lane for the dark-square Bishop. 17. b5 Nc4 18. bxc6 bxc6 19. Bd3 fxe5 20. Nxe5 Bxe5! “I played this because I just hadn’t found anything else. It took me a long time to believe in this idea... Very unexpected”, Grischuk said afterwards. 21. fxe5 Nd2 22. Rfd1 Qg5 23. Qe3. 23. Kh1 Nf3! may transpose into the game. 23. ... Nf3+ 24. Kh1 Qxe3 25. fxe3 Nxe5. Black’s position is manifestly superior, and he is furthermore a Pawn ahead. 26. e4. Possibly White’s best practical chance. 26. ... d4 27. Na4 Rb8! Black gives back the Pawn, but in exchange he obtains an overwhelming position. 28. Bc4+ Kg7 29. Rxd4 Rb4 30. Nc5 Rf2 31. a3 Rbb2 32. Na4

32. ... Bxh3! A most elegant sacrifice. 33. Nxb2 Bxg2+ 34. Kh2 Rxb2 35. Kg3 g5! Threatening simply ... h7-h5-h4 mate. 36. Rcd1. No better is 36. Bf1 Bxf1 37. Rxf1 h5, e.g. 38. Rb4 h4+ 39. Kh3 Rc2 40. Rb7+ Kg6 41. Rxa7 Rc3+ 42. Kh2 Nf3+ 43. Kh1 g4 (Deviatkin’s analysis). 36. ... h5 37. R4d2 Rxd2 38. Rxd2 Bxe4 39. Re2 h4+ 40. Kf2 Ng4+ 41. Kg1 Nf6. There was a simpler win: 41. ... h3 42. Rxe4 h2+ 43. Kg2 h1=Q+ 44. Kxh1 Nf2+ 45. Kg2 Nxe4-+. The text move, however, lets Grischuk display his superb endgame technique. 42. Be6 Kg6 43. Re1 Bf3. As they say, the rest is a question of technique. Black’s connected passed Pawns are unstoppable. 44. Re5 g4 45. Bf5+ Kh6 46. Bd3 Bd5 47. Bf1 g3 48. Bh3 Ne4 49. Be6 Nf2 50. Bxd5 cxd5 51. Kg2. On 51.Rxd5 h3 wins outright. 51. ... d4. Another way was 51. ... Nd3! 52. Rf5 Ne1+ 53. Kh3 g2 54. Kh2 h3-+ (Deviatkin’s analysis). 52. Rd5 d3 53. a4 a5 54. Kf3 Kg6 55. Rd8 Kf7 56. Rd4 Kf8 57. Rd5 Ke8 58. Rd4 Ke7 59. Rd5 Kf6 60. Rd6+ Kf5 61. Rd4 Ke6 62. Rd8 Ke5 63. Rd7 h3! 64. Kxg3 Ne4+ 65. Kf3. Else 65. Kxh3 d2 64. Rd3 (otherwise ... Ne4-d6) 64. ... Nf2+ winning. 65. ... h2 66. Kg2 d2 0 : 1. A very pretty finish: if 66. Rd3 (otherwise ... Ne4-d6) then 66. ... h1=Q+! 67. Kxh1 Nf2+ finis.