一次方程

余泱漪 (Yú Yāngyī) – Vladimir Borisovich Kramnik
Qatar Masters; Doha, December 4, 2014
Spanish C65

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. Nbd2 Be6 7. 0-0 Nd7 8. Nb3 Bb6 9. Ng5 Bxb3 10. axb3 f6 11. Nf3. For the alternative 11. Nh3 h5 12. Kh1 g5 13. Ng1 Nf8 14. Ne2 h4 15. Be3 Ne6 16. b4 Qd6 see the game Naiditsch – Alekseev, 28th European Club Cup, Eilat 2012. 11. ... Nf8 12. Nd2 Ne6 13. Qh5+ g6 14. Qd1 Bc5 15. Nc4 b5 16. Na5 Qd7 17. Be3 Bb6 18. b4 0-0 19. Qd2 f5!?? Kramnik’s Pawn sacrifice is of doubtful value, as Black could play, without any inconvenience, 19. ... c5! with dynamic equality. 20. exf5 gxf5? The most natural move on the board, but also the wrong one. Correct was 20. ... Rxf5! 21. Qc3 Raf8! with fairly even prospects.

21. Qc3 f4. Also 21. ... Bxa5 22. Rxa5 f4 23. Bxa7 Nd4 was worth considering. 22. Bxb6 cxb6 23. Nxc6 Qd6? The decisive mistake. More chances of survival arise, not paradoxically, from 23. ... Nd4! 24. Nxd4 (24. Nxe5? Qd5!) 24. ... exd4 25. Qd2, although Black have to prove his compensation for the Pawn. 24. Rxa7 Rxa7 25. Nxa7 f3 26. Qc6 Qe7 27. Nxb5 Kh8 28. g3 Qf7 29. Ra1 Ng5 30. Ra8 Qe7 31. h4 Nh3+ 32. Kf1 e4 33. Qxe4 1 : 0.

余泱漪 (Yú Yāngyī)
Photo: Maria Alekseevna Emelianova