Author: Paulo Soares
Date: 01:40:23 08/22/99
Go up one level in this thread
On August 22, 1999 at 02:13:40, James Robertson wrote:
>Today my program played against DiepBlue (Diep) on FICS. Diep achieved a won
>position with a nice bishop sac after my program played the strange 21. ... Qd5?
>(thinking it was winning a pawn). I thought for sure my program was dead, but
>Diep played 51. Rxe5+? and left my program with only two knights for a 'drawn'
>game. My program knows that two knights cannot checkmate, but it only checks for
>this if there are no pawns on the board. It is sometimes funny to see it with
>K+N vs K+P and refuse to capture the pawn! Anyway, it just happened to leave
>DiepBlue with a rook pawn and..... by sheer luck it pushed Diep into the mate.
>
>James
>
>Here is the game: What other programs find Diep's excellent bishop sac? the time
>control was 5 0, and Diep used about 5 seconds to find it. I haven't checked my
>program, but it obviously thought it wasn't worth it when it played 21. ... Qd5?
>My program used no book and played on my P233, 4MB hash.
>
>[Event "ICS rated blitz match"]
>[Site "freechess.org"]
>[Date "1999.08.21"]
>[Round "-"]
>[White "DiepBlue"]
>[Black "JRCP"]
>[Result "0-1"]
>[WhiteElo "2236"]
>[BlackElo "2200"]
>[TimeControl "300"]
>
>1. c4 e5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 Bb4 5. Nd5 Ba5 6. Qa4 O-O 7. Rb1 Bb6
>8. Nxb6 cxb6 9. d3 h6 10. Bd2 d5 11. cxd5 Nxd5 12. Nf3 Be6 13. Rc1 Rc8 14.
>O-O Qd6 15. Rfd1 a6 16. Re1 Rfd8 17. Qh4 a5 18. a3 Nc7 19. a4 f6 20. Red1
>b5 21. Re1 Qd5 22. Bxh6 gxh6 23. Qxh6 Rf8 24. Qg6+ Kh8 25. Ng5 Qd7 26. Qh6+
>Kg8 27. axb5 Nxb5 28. Qg6+ Kh8 29. Qh5+ Kg8 30. Nxe6 Qxe6 31. Qg6+ Kh8 32.
>Qh6+ Kg8 33. Rc5 Nc7 34. Qg6+ Kh8 35. Rc4 Nd4 36. Bxb7 Qg8 37. Qxg8+ Kxg8
>38. b4 axb4 39. e3 Nde6 40. Bxc8 Rxc8 41. Rxb4 Nc5 42. Rd1 Nd5 43. Rc4 Nb6
>44. Rcc1 Kf7 45. d4 Ne4 46. Rxc8 Nxc8 47. dxe5 fxe5 48. f3 Nc3 49. Rd3 Na4
>50. Rd5 Ke6 51. Rxe5+ Kxe5 52. Kf2 Nd6 53. Ke2 Nc3+ 54. Kd3 Nd1 55. f4+ Kd5
>56. Ke2 Nc3+ 57. Kf3 Kc4 58. g4 Nde4 59. f5 Nd2+ 60. Kf2 Kd3 61. f6 Nce4+
>62. Kg2 Nxf6 63. g5 Nh5 64. Kf2 Ke4 65. h3 Nf3 66. g6 Nh4 67. Ke2 Nxg6 68.
>Kf2 Nf6 69. Kg3 Ne7 70. Kg2 Nf5 71. Kf2 Nd5 72. Ke2 Nh4 73. Kd2 Nf3+ 74.
>Kc2 Kxe3 75. Kb3 Kd3 76. Ka4 Nc3+ 77. Ka3 Nh4 78. Kb4 Kd4 79. Kb3 Ne4 80.
>Kc2 Kc4 81. Kd1 Kc3 82. Ke2 Kd4 83. Ke1 Ke3 84. Kf1 Kd2 85. Kg1 Ke2 86. Kh2
>Kf1 87. Kh1 Nf3 88. h4 Nf2#
>{DiepBlue checkmated} 0-1
Hiarcs 7.32 plays 22.Bxh6 instantly and Fritz5.32 in 28sec, booth running
in my PII-300 with HT=64MB.
The endgame was very beatiful and rare, my congratulations.
Paulo
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