巴甫洛夫制約 (Riflesso pavloviano)

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Brief notes by 一隻巴甫洛夫的狗

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Fabiano Caruana – Nigel David Short
53rd Masters; Reggio Emilia, December 30, 2010
French Defence C09

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nc6 5. exd5 exd5 6. Bb5 cxd4 7. 0-0 Bd6 8. Nb3 Nge7 9. Nbxd4 0-0 10. h3 Re8. The vintage alternative is 10. ... Nxd4 11. Qxd4 Bf5 12. c3 Be4 13. Ng5 Nf5 14. Qd1 Qf6 15. Re1 Bc5! 16. Nxe4 dxe4 17. Rxe4 Bxf2+ 18. Kxf2 Qb5+ 19. Be3 Qb5 with equality, Tukmakov – Uhlmann, Hastings 1972-’1973. 11. c3 a6 12. Bd3 Nxd4N (12. ... h6) 13. Nxd4 Nc6 14. Nf3 Bc7 15. Bg5 Qd6 16. Bh4 Qh6 17. Bc2 Be6 18. Bg3 Bxg3 19. fxg3 Rad8 20. Qd3 g6 21. g4 f5 22. Rae1 fxg4 23. hxg4 Bf7 24. g5 Qf8 25. Ba4 Rxe1 26. Rxe1 b5 27. Bb3 Qd6 28. Nd4 Nxd4 29. Qxd4. The position is roughly even, although White could claim a microscopic plus due to the “good” Bishop vs. the “bad” Bishop. But it does not seem enough to hope for a happy ending... 29. ... Qg3!?? A tricky and committal move. 30. Re5. The d5-Pawn is now doomed. 30. ... a5 31. a3 b4 32. axb4 axb4 33. Bxd5 bxc3?? A tragicomic blunder. Correct was 33. ... Bxd5 34. Rxd5 Re8 35. Rd8 Qe1+ 36. Kh2 bxc3 37. bxc3 with a situation quite similar to the game.

34. bxc3? Oops! Fabiano is missing the easy 34. Bxf7+! Kxf7 35. Qc4+ Kf8 36. Qf1+! (maybe the move overlooked by both players!) 36. ... Kg8 37. Re7 Rf8 38. Qc4+ Kh8 39. Qd4+ and White mates in three moves. 34. ... Bxd5 35. Rxd5 Rxd5 36. Qxd5+ Kg7 37. Qd2. In spite of all, the endgame looks like an ordeal for Black. The Pawn supported by Her Majesty advances imperiously. Black can only hope for a “lucky” perpetual check. 37. ... Qc7 38. Qd4+ Kg8 39. c4 Qe7 40. c5 Qxg5 41. Qc4+ Kf8 42. c6 Qd8 43. Qf4+? A delay. The most relentless mode was 43. c7! Qc8 44. Qb4+ Ke8 45. Qd6! and Black is almost in Zugzwang, since 45. ... Qd7 is finely refuted by 46. Qe5+ Kf7 47. Qc3 Qc8 48. Qh3! Qxc7 49. Qxh7+. 43. ... Kg8 44. Kh2 Qd5 45. Qf6 Qh5+ 46. Kg3 Qc5 47. Kg4 Qd5 48. Kh3 Qh5+ 49. Kg3 Qc5 50. Qe6+ Kg7 51. Kf3 Qc3+ 52. Ke4 Qc2+ 53. Kd4 Qxg2 54. c7 Qd2+ 55. Kc5 Qa5+ 56. Kd6 Qa3+ 57. Kd7 Qa4+ 58. Ke7 Qa7 59. Qd7 1-0.