Stockfish – Leela Chess Zero
Top Chess Engine Championship Season 14 – Superfinal; match game 66; tcec-chess.com, February 17, 2019
Queen’s Indian Defence E15
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 d5 6. Bg2 dxc4 7. Ne5 Bb4+ 8. Kf1 Bd6 9. Nxc4 Nd5 10. Bb2 Nc6 11. h4 f5 12. Nbd2 0-0 13. Kg1!? This could be an improvement over 13. Bf3 Be7 14. Kg2 Bb7 15. Rc1 Bf6 16. e3 Qd7 17. Qe2 Rae8 18. a3 Kh8 19. h5 Qf7 20. b4 a6 21. Ne5 Nxe5 22. dxe5 Be7 23. Nb3 Rc8 24. Bd4 Kg8 25. Rhd1 g5 26. hxg6 hxg6 27. Rh1 g5 28. Kg1 Kg7 29. Bh5 Rh8 30. Bf3?? (30. e4! would have won material for White) 30. ... g4! 31. Bg2 Rxh1+ 32. Bxh1 Rh8 with irresistible attack, Ostermeyer – Lau, Solingen 1986. 13. ... b5 14. Nxd6 cxd6 15. e4! Stockfish’s straightforward strategy proves to be quite effective. 15. ... fxe4 16. Nxe4 Qd7 17. Ng5! h6 18. Qg4 Rf5. Not 18. ... hxg5? because of 19. Bxd5 Bc8 20. Bg2 getting an easy and overwhelming attack for free. Likewise after 18. ... Bc8 19. Re1! hxg5 20. hxg5 Qf7 21. f4! White’s attack continues vehemently. 19. Re1! Nf6. Probably Black had nothing better than 19. ... hxg5 20. Qxf5! exf5 21. Bxd5+ Kh7 22. hxg5+ Kg6 23. Re6+ Qxe6 (23. ... Kxg5?? 24. f4+ Kg4 25. Rg6#) 24. Bxe6 Nb4 25. d5 remaining with a Pawn down and an inferior but possibly tenable position. 20. Qe2 Re8 21. Ne4! Stockfish doesn’t distract its Knight with the capture of the e6-Pawn. 21. ... Nd5 22. Bh3! Rf7 23. Bg4! With the threat of Bg4-h5. 23. ... Rfe7 24. Rh2! Qd8 25. f3 Nb8 26. Qc2! White again renews the siege on Black’s castle. 26. ... Bc8 27. Ng5! The Knight is obviously taboo. 27. ... Nf6 28. Bh5! Rf8. Not 20. ... Nxh5?? because of 21. Qh7+ Kf8 22. Qh8#. 29. Bg6. It’s not yet the final destination of the White Bishop’s long journey. 29. ... Na6 30. Qd2 b4!? Black dares a desperate Pawn sacrifice in the vain hope of distracting White from its methodical Kingside attack. 31. g4 Nc7 32. Qxb4 Nfd5 33. Bh7+ Kh8 34. Qd2 Nf4 35. Bb1! Ba6 36. Nh7! Rff7 37. g5 Nh5 38. gxh6 gxh6. 38. ... Rxf3 39. Ng5 was hardly any better at all. 39. d5+ e5 40. Qxh6 Rxh7
41. Rxe5! An elegant pointe finishes the game. 41. ... Rg7+. If 41. ... dxe5 then 42. Bxe5+ Kg8 43. Bxh7+ Rxh7 44. Rg2+ with mate in four moves. If, instead, 41. ... Rxh6 then 42. Rxh5+ possibly transposing into the game. 42. Rg2 Rxh6 43. Rxh5 Ne8. Or 43. ... Rxh5 44. Bxg7+ Kg8 45. Bf6+ and finis. 44. Bxg7+ Nxg7 45. Rxh6+ Kg8 46. Rh7 Qb6+ 47. Kh1 Kf8 48. Rgxg7 Qf2 49. Be4 Qe1+ 50. Rg1 Qe3 51. Rh5 Ke7 52. Rg7+ Kf6 53. Rg6+ Kf7 54. Rh7+ Kf8 55. Rf6+ Kg8 56. Re6! Qe1+ 57. Kh2 Qf2+ 58. Kh3 Bc8 59. Rc7! Qf1+ 60. Kg4 Bxe6+ 61. dxe6 Qg1+ 62. Kh5 Qg3 63. Rf7 Qe5+ 64. Bf5 Qd5 65. Kg5 Qd2+ 66. f4 Qf2 67. Bh7+ Kh8 1 : 0.
劉勃麟 (Liú Bólín), Screens in Rest, 2017. Photo © 劉勃麟 (Liú Bólín).
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