模型论 (Model theory)

侯逸凡 (Hóu Yìfán) – Hoàng Thanh Trang
41st Women’s Chess Olympiad; Tromsø, August 8, 2014
French Defence C13

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 c5 7. Bxe7 Kxe7 8. Nf3!? Theoretical modelisation! Although its reductionist approach, this move is perfectly playable. The alternative is 8. f4 Nc6 9. dxc5 Nxc5 10. Qd2 d4 11. Nd1 Qd5 12. Nf2 Rd8 13. Nf3 b6 14. Bd3 f5 15. exf6+ gxf6 16. Qe2 Nxd3+ 17. Qxd3 f5 18. 0-0 Rg8 19. c4 Qd6 20. Nh3 Bd7 21. Rae1 Raf8 22. a3 h6 23. b4 Rg3 24. Rf2 Rfg8 25. Kf1 a6 26. Nhg1 b5 27. Ne2 bxc4 28. Nxg3 Rxg3 29. Qxc4 Qxf4 30. Ne5 Qxh4 31. Nxc6+ Bxc6 32. Qxe6+ Kd8 33. Qd6+ Bd7 34. Qb8+ Bc8 35. Qb6+ Kd7 36. Qe6+ Kd8 37. Qe8+ Kc7 38. Rc2+ Rc3 39. Rxc3+ dxc3 40. Qe7+ Qxe7 41. Rxe7+ Kb6 42. Re3 a5 43. bxa5+ Kxa5 44. Rxc3 Bd7 45. Kf2 Ka4 46. Ke3 Be6 47. Kf4 h5 48. g3 1 : 0 侯逸凡 (Hóu Yìfán) – Danielian, 38th Women’s Chess Olympiad, Dresden 2008. 8. ... Qb6 9. Qd2 Nc6 10. 0-0-0 cxd4 11. Nb5 h6 12. Qf4! a6. Russian theoretician Nikolai Mikhailovich Kalinichenko mentions (and dismisses) 12. ... Rf8 13. Nbxd4 Nxd4 14. Nxd4 Qc7 15. Re1 Qa5 16. Re3 Nc5 17. b4!+− (Kovačević – Šarić, Herceg Novi 2007). 13. Nbxd4 Nc5 14. g4 Ne4?! 14. ... Bd7 (Kalinichenko) was preferable. 15. Qe3 Qa5 16. a3! Bd7 17. Bd3. White got a very good attacking position. 17. ... Nc5 18. g5 Nxd4 19. Nxd4 hxg5? After this White’s attack will become irresistible, but other moves seem likewise insufficient: 19. ... h5 20. g6!+− or 19. ... Nxd3+ 20. Rxd3 Raf8 (Kalinichenko) 21. Rb3+− — probably Black is already lost. 20. Qxg5+ Kf8 21. Rhg1 Nxd3+. On 21. ... g6 22. Qf6 is deadly. 22. Rxd3 Rh7. If 22. ... g6 then 23. Rf3 (threatening 24. Rxf7+! Kxf7 25. Qxg6+ Kf8 26. Qf6+) 23. ... Rg8 24. h5 winning immediately. 23. Rf3. With the big threat of Qg5-g6. 23. ... Ke8 24. Qf4 g6 25. h5! Qc5. Cearly not 25. ... gxh5 because of 26. Rg8+ Ke7 27. Qf6#, nor 25. ... Rxh5 on account of 26. Qxf7+ Kd8 27. Nxe6+! Bxe6 28. Qf8+ Kc7 29. Qd6+ Kc8 30. Rf8+ and mate next move. 26. hxg6 fxg6 27. Rxg6 Bc8 28. Rg8+ Kd7

29. Nxe6! Easy, but very stylish! 29. ... Qa5. On 29. ... Kxe6 30. Qf5+ Ke7 31. Qxh7+ Ke6 32. Qf5+ Ke7 33. Qf7#. 30. b4 Rh1+ 31. Kb2 Qb6 32. Qf7+ 1 : 0.