Author: Ron Murawski
Date: 22:49:06 06/29/02
Go up one level in this thread
On June 30, 2002 at 00:25:27, Mike Byrne wrote:
>...that I ever personally witness in computer chess. A great game.
>
>Modified Crafty v18.15 v Gambit Tiger - Aggressive mode
>Game 40/30
>Dual Xeon P4 1.7Ghz - each program has one CPU
>ponder=on
>
>[Event "Game 5"]
>[Site "Philadelphia PA"]
>[Date "2002.06.29"]
>[Round "5"]
>[White "Gambit Tiger 2.0"]
>[Black "Crafty 18.15"]
>[Result "0-1"]
>[TimeControl "40/1800:20/900"]
>
>1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. g3 Nc6 5. Bg2 g6 6. d4 cxd4 7. Nxd4 Nxd4 8.
>Qxd4 Bg7 9. O-O O-O 10. h3 Be6 11. Qd1 Rc8 12. Re1 Qc7 13. Be3 a6 14. a4 Qd7 15.
>g4 h5 16. f3 Bc4 17. Qd2 Ne8 18. gxh5 gxh5 19. f4 Bxc3 20. Qxc3 f6 21. Kh2 Kh8
>22. Qd2 Rg8 23. Rg1 Ng7 24. f5 Bf7 25. Bd4 Kh7 26. c3 Rcd8 27. Qf2 d5 28. Rae1
>dxe4 29. Bxe4 Qd6+ 30. Kh1 Bd5 31. Rg2 Rd7 32. Re3 Bxe4 33. Rxe4 Qd5 34. Rh4 Kh8
>35. Kh2 Kh7 36. Rg3 Rdd8 37. Qf4 Rh8 38. Qg4 Qf7 39. Qf3 Kg8 40. Qg2 Kf8 41. Rf4
>Rd7 42. Rg6 Rg8 43. Rf3 Ne8 44. Rfg3 Rxg6 45. fxg6 Qd5 46. Qd2 Kg7 47. Qe2 e5
>48. Be3 Qd1 49. Qf2 Qxa4 50. Qf5 Qd1 51. Rg2 Qa4 52. b4
>{
>[D] 4n3/1p1r2k1/p4pP1/4pQ1p/qP6/2P1B2P/6RK/8 b - b3 0 52
>
>Position after 52.b4 -- at this point Gambit Tiger Aggressive had +4.46 ,
>Crafty showed +1.28 two moves earlier Crafty had +1.68 in favor of White
>
>move 52.... Qd1 is a loser
>
>White(52): b2b4
> time used: 30.34
> time surplus 0.00 time limit 23.78 (2:46)
> nss depth time score variation (1)
> 6 0.24 0.03 52. ... Qd1 53. c4 Rc7 54. c5 Qe1 55.
> Rg3
> 6-> 0.27 0.03 52. ... Qd1 53. c4 Rc7 54. c5 Qe1 55.
> Rg3
> 7 0.52 0.03 52. ... Qd1 53. c4 h4 54. Bf2 Rd2 55.
> Bxh4 Rxg2+ 56. Kxg2 Qd2+ 57. Kf3 Qxb4
> 7-> 0.53 0.03 52. ... Qd1 53. c4 h4 54. Bf2 Rd2 55.
> Bxh4 Rxg2+ 56. Kxg2 Qd2+ 57. Kf3 Qxb4
> 8 0.94 0.07 52. ... Qd1 53. c4 h4 54. Qe4 Qh5 55.
> Rg4 Nd6 56. Qf3
> 8-> 1.09 0.07 52. ... Qd1 53. c4 h4 54. Qe4 Qh5 55.
> Rg4 Nd6 56. Qf3
> 9 1.84 -- 52. ... Qd1
> 9 2.84 5.63 52. ... Qd1 53. Qe6 Qd6 54. Qxe8 Qc7
> 55. Bh6+ Kxh6 56. Qh8+ Rh7 57. gxh7
> e4+ 58. Rg3 e3 59. Qg8 Qxh7 60. Qxh7+
> Kxh7 61. Rxe3
> 9 6.36 1.03 52. ... Qc6 53. Qxh5 Kg8 54. Rd2 Re7
> 55. Bc5 Rg7 56. Rd8 e4
> 9-> 6.78 1.03 52. ... Qc6 53. Qxh5 Kg8 54. Rd2 Re7
> 55. Bc5 Rg7 56. Rd8 e4
> 10 7.61 1.08 52. ... Qc6 53. Qxh5 Kg8 54. Rd2 Nd6
> 55. Qh4 f5 56. Qf6 f4 57. Qe6+ Kf8
> (2) 10-> 10.61 1.08 52. ... Qc6 53. Qxh5 Kg8 54. Rd2 Nd6
> 55. Qh4 f5 56. Qf6 f4 57. Qe6+ Kf8
> 11 15.36 1.22 52. ... Qc6 53. Qxh5 Kg8 54. Rd2 Nd6
> 55. Qh4 Nf5 56. Qf2 Rxd2 57. Bxd2 Ne7
> 58. Qg1
>}
>Qc6 53. Qxh5 Kg8 54. c4 Re7 55. Rg4 Qf3 56. Qh6 Qe2+ 57. Kg1 Rd7 58. Kh1 Qf3+
>59. Kh2 Qe2+ 60. Rg2 Qxc4 61. b5 Qxb5 62. Qh5 Qc6 63. h4 b5 64. Qg4 Ng7 65. h5
>f5 66. Qh4 f4 67. h6 Nf5 68. h7+ Kh8 69. Qg4 Qf6 70. Bf2 Rg7 71. Qh5 b4 72. Rg1
>b3 73. Rc1 Nd6
>{
>[D] 7k/6rP/p2n1qP1/4p2Q/5p2/1p6/5B1K/2R5 w - - 0 74
>
>Position after 73...Nd6 -- now it is Crafty showing +5.01 lead, GT shows it is
>down 1.62 - but that quickly changes to -3.21 on the next move. The game is
>over at this point. It appears that GT avoided the perpetual check around move
>59 and thus lost the game. I did not understand the move 63... b5 , as there
>appeared to be inadequate compensation for just throwing the pawn away.
>}
>74. Rg1 b2 75. Bh4 Qe6 76. Bf2
>{
>[D] 7k/6rP/p2nq1P1/4p2Q/5p2/8/1p3B1K/6R1 b - - 0 76
>
>76... Ne4 is much better than 76...Nf5 - your program should play 76. Ne4 - it
>took Crafty 9 seconds to see this move on my machine.
>
76...f3 seems to be better still. I think it wins immediately.
Horizon analysis:
depth=11 +9.84 f3 Qxf3 Rxg6 Re1 Rh6+ Kg2 b1r Rxb1 Qg6+ Bg3 Qxb1 Bxe5+ Kxh7 Qf8
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