Author: Uri Blass
Date: 00:54:18 06/30/02
Go up one level in this thread
On June 30, 2002 at 01:49:06, Ron Murawski wrote:
>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
I guess that there are a lot of good options
Movei(p800 16 mbytes hash) never considers Nf5 and prefers
Nc4 with a score of +4.5 pawns at depth 11 and +4.51 at depth
12.
7 317 755 1145672 f4f3
7 331 800 1213586 f4f3 h5f3 g7g6 f3a8 h8h7 a8a7 d6f7 a7b7 g6h6 h2g2
7 331 840 1280465 f4f3 h5f3 g7g6 f3a8 h8h7 a8a7 d6f7 a7b7 g6h6 h2g2
8 301 1079 1649649 f4f3
8 302 1174 1800079 d6e4
8 349 1383 2122582 d6e4 g1d1 e6e8 h5f3 e4d2 f3d3 b2b1n d1b1 d2b1 d3b1 g7g6
8 349 1487 2281136 d6e4 g1d1 e6e8 h5f3 e4d2 f3d3 b2b1n d1b1 d2b1 d3b1 g7g6
9 349 1820 2804595 d6e4 g1d1 e6e8 h5f3 e4d2 f3d3 b2b1n d1b1 d2b1 d3b1 g7g6
9 349 2385 3758706 d6e4 g1d1 e6e8 h5f3 e4d2 f3d3 b2b1n d1b1 d2b1 d3b1 g7g6
10 379 5628 8774559 d6e4 g1d1 e6e8 f2h4 e4d2 h4f6 b2b1q f6g7 h8g7 d1b1 d2b1 h2g2
10 380 8513 13330786 d6c4
10 432 10663 16652145 d6c4 g1d1 e6f6 f2h4 f6b6 h5g4 g7g6 g4c8 h8h7 c8d7 h7h6
d7f5
10 432 11167 17445147 d6c4 g1d1 e6f6 f2h4 f6b6 h5g4 g7g6 g4c8 h8h7 c8d7 h7h6
d7f5
11 450 18068 27902485 d6c4 g1d1 e6f6 f2e1 g7g6 e1h4 f6b6 h5f5 b6c6 f5f8 h8h7
h4f2
11 450 21836 34273418 d6c4 g1d1 e6f6 f2e1 g7g6 e1h4 f6b6 h5f5 b6c6 f5f8 h8h7
h4f2
12 451 45733 72263966 d6c4 g1d1 e6f6 h5h3 g7g6 f2h4 f6f8 h3b3 f8h6 b3h3 h6h7
h2h1
12 451 57330 91713816 d6c4 g1d1 e6f6 h5h3 g7g6 f2h4 f6f8 h3b3 f8h6 b3h3 h6h7
h2h1
After f3 movei has the following analysis
10 -434 4286 7090441 h5g5 g7g6 g5g6 e6g6 g1g6 b2b1q g6d6 b1h7 h2g1 h7g8 g1f1
g8c4 f1g1 h8g7
10 -434 9179 15415304 h5g5 g7g6 g5g6 e6g6 g1g6 b2b1q g6d6 b1h7 h2g1 h7g8 g1f1
g8c4 f1g1 h8g7
11 -433 11390 19120176 h5g5 g7g6 g5g6 e6g6 g1g6 b2b1q g6d6 b1h7 h2g1 h7g8 g1f1
g8c4 f1g1 h8g7 d6d1
11 -433 20081 33469245 h5g5 g7g6 g5g6 e6g6 g1g6 b2b1q g6d6 b1h7 h2g1 h7g8 g1f1
g8c4 f1g1 h8g7 d6d1
12 -733 30781 51596481 h5g5 g7g6 g5g6 e6g6 g1g6 b2b1q g6d6 b1f1 h2g3 f1g2 g3h4
g2f2 h4h5 f2h2 h5g6 h2g1 g6h6 g1g7 h6h5 g7h7
12 -732 41843 70903219 h5f3
12 -621 88380 144090466 h5f3 g7g6 f2g3 b2b1q g1b1 e6a2 f3f2 a2b1 f2f8 h8h7 f8e7
h7g8 e7d8 g8f7 d8d7 f7f8 d7d8 d6e8 g3e5
12 -621 143434 232647222 h5f3 g7g6 f2g3 b2b1q g1b1 e6a2 f3f2 a2b1 f2f8 h8h7 f8e7
h7g8 e7d8 g8f7 d8d7 f7f8 d7d8 d6e8 g3e5
Uri
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