Author: Rafael Vasquez
Date: 20:01:54 06/09/98
Chess programs fall in a draw variation because of a knigth on prise. Does any finds a PV other than the draw?. Is the horizon effect so hard in this position? [Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Vasquez, Rafael"] [Black "Oneto, Angel"] [Result "1-0"] [ECO "A67"] [PlyCount "123"] 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ Nfd7 9. a4 O-O 10. Nf3 Na6 11. O-O Nb4 12. a5 a6 13. Be2 $146 13... Re8 14. Nd2 b5 15. axb6 Nxb6 16. Nf3 f5 17. Ng5 fxe4 18. Ngxe4 Bf5 19. Bf3 Bd4+ 20. Kh1 Rb8 21. Re1 Kh8 22. Re2 N6xd5 23. Nxd5 Nxd5 At this point ALL the Chess Programs I tested see 24.Ng5 which apparently wins a knigth,but actually only draws. I played Rxa6 and won the game. Please confirm if any program can find a better move and if you consider the position interesting enough to test programs. The drawing variation is: 24. Ng5 Qd7 25. Bxd5 Rxe2 26.Qxe2 Re8 27. Qd1 Bc2 28. Nf7+ Kg7 29. Qf1 Bd3 30. Qd1 Bc2 24. Rxa6 Bxe4 25. Bxe4 Nb4 26. Ra3 Qf6 27. Rh3 Re6 28. f5 gxf5 29. Rh6 Qf7 30. Bd5 Nxd5 31. Rhxe6 Nf6 32. Rxd6 Ne4 33. Rxd4 cxd4 34. Qxd4+ Kg8 35. Re1 Re8 36. Rf1 Qh5 37. Qc4+ Kg7 38. Bf4 Qg4 39. Qc7+ Kg8 40. Qc4+ Kg7 41. Qd4+ Kg6 42. Qb6+ Kf7 43. b4 Re6 44.Qc7+ Kg6 45. Qc4 Kf6 46. Kg1 h5 47. Bc7 Re8 48. Qc6+ Kf7 49. h3 Qg5 50. Qd5+ Kg6 51. b5 Qe3+ 52. Kh2 Nf2 53. Qf3 Qc5 54. b6 Ne4 55. Qf4 Qb5 56. Rc1 Nf6 57.Qf3 Ne4 58. Qd1 Rg8 59. Qd4 Kh7 60. Bf4 Kg6 61. Rc7 Nf6 62. Qd6 1-0
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