Author: Uri Blass
Date: 23:15:55 09/24/03
Go up one level in this thread
On September 24, 2003 at 21:23:44, Matthew White wrote: >On September 22, 2003 at 21:13:19, Drexel,Michael wrote: > >>On September 22, 2003 at 20:33:46, Matthew White wrote: >> >>>On September 19, 2003 at 19:14:00, Drexel,Michael wrote: >>> >>>>Some people here have a naive idea of what a Supercomputer can do. >>>> >>>>To search a fairly balanced opening position very DIEP is absurd. >>>>Any correspondence master will come up with much better results in the same >>>>time. >>>> >>>>Would 500 cpu's Diep be able to solve (or at least to win) this position: >>>> >>>>[D] 5k2/4R3/2K3p1/4BbPn/8/8/8/8 w - - 0 89 >>>> >>>>I assume it would shuffle around the white pieces for another 50 moves. >>>> >>>>[Event "World Championship 35th-KK5"] >>>>[Site "Lyon/New York"] >>>>[Date "1990.12.01"] >>>>[Round "16"] >>>>[White "Kasparov, Garry"] >>>>[Black "Karpov, Anatoly"] >>>>[Result "1-0"] >>>>[ECO "C45"] >>>>[WhiteElo "2800"] >>>>[BlackElo "2730"] >>>>[PlyCount "203"] >>>>[EventDate "1990.10.??"] >>>>[Source "?"] >>>> >>>>1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. >>>>c4 Nb6 9. Nd2 Qe6 10. b3 a5 11. Bb2 Bb4 12. a3 Bxd2+ 13. Qxd2 d5 14. cxd5 cxd5 >>>>15. Rc1 O-O 16. Rxc7 Qg6 17. f3 Bf5 18. g4 Bb1 19. Bb5 Rac8 20. Rxc8 Rxc8 21. >>>>O-O h5 22. h3 hxg4 23. hxg4 Bc2 24. Qd4 Qe6 25. Rf2 Rc7 26. Rh2 Nd7 27. b4 axb4 >>>>28. axb4 Nf8 29. Bf1 Bb3 30. Bd3 Bc4 31. Bf5 Qe7 32. Qd2 Rc6 33. Bd4 Ra6 34. >>>>Bb1 Ra3 35. Rh3 Rb3 36. Bc2 Qxb4 37. Qf2 Ng6 38. e6 Rb1+ 39. Bxb1 Qxb1+ 40. Kh2 >>>>fxe6 41. Qb2 Qxb2+ 42. Bxb2 Nf4 43. Rh4 Nd3 44. Bc3 e5 45. Kg3 d4 46. Bd2 Bd5 >>>>47. Rh5 Kf7 48. Ba5 Ke6 49. Rh8 Nb2 50. Re8+ Kd6 51. Bb4+ Kc6 52. Rc8+ Kd7 53. >>>>Rc5 Ke6 54. Rc7 g6 55. Re7+ Kf6 56. Rd7 Ba2 57. Ra7 Bc4 58. Ba5 Bd3 59. f4 >>>>exf4+ 60. Kxf4 Bc2 61. Ra6+ Kf7 62. Ke5 Nd3+ 63. Kxd4 Nf2 64. g5 Bf5 65. Bd2 >>>>Ke7 66. Kd5 Ne4 67. Ra7+ Ke8 68. Be3 Nc3+ 69. Ke5 Kd8 70. Bb6+ Ke8 71. Rc7 Ne4 >>>>72. Be3 Ng3 73. Bf4 Nh5 74. Ra7 Kf8 75. Bh2 Ng7 76. Bg1 Nh5 77. Bc5+ Kg8 78. >>>>Kd6 Kf8 79. Bd4 Bg4 80. Be5 Bf5 81. Rh7 Kg8 82. Rc7 Kf8 83. Kc6 Kg8 84. Re7 Kf8 >>>>85. Bd6 Kg8 86. Re8+ Kf7 87. Re7+ Kg8 88. Be5 Kf8 89. Ra7 Bg4 90. Kd6 Bh3 91. >>>>Ra3 Bg4 92. Re3 Bf5 93. Kc7 Kf7 94. Kd8 Bg4 95. Bb2 Be6 96. Bc3 Bf5 97. Re7+ >>>>Kf8 98. Be5 Bd3 99. Ra7 Be4 100. Rc7 Bb1 101. Bd6+ Kg8 102. Ke7 1-0 >>>> >>>>Michael >>>Shredder 7.04 on a 2x2.4 GHz Xeon 384 MB Hash 3/4/5 TB w/HT (4 threads) takes 8 >>>seconds >> >>8 seconds ??. It would rather take 8 years. >> >> >>>New game >>>5k2/4R3/2K3p1/4BbPn/8/8/8/8 w - - 0 1 >>> >>>Analysis by Shredder 7.04: >>> >>>1.Ra7 Kg8 2.Kd5 >>> +- (3.08) Depth: 1/1 00:00:00 >>>1.Ra7 Kg8 2.Kd5 >>> +- (3.08) Depth: 3/5 00:00:00 >>>1.Ra7 Kg8 2.Kd5 >>> +- (3.08) Depth: 3/5 00:00:00 >>>1.Ra7 Kg8 2.Kd5 >>> +- (3.08) Depth: 3/5 00:00:00 >>>1.Ra7 Kg8 2.Kd5 >>> +- (3.08) Depth: 3/5 00:00:00 >>>1.Ra7 Kg8 2.Kd5 >>> +- (3.08) Depth: 3/5 00:00:00 >>>1.Ra7 Kg8 2.Kd5 >>> +- (3.08) Depth: 3/5 00:00:00 >>>1.Ra7 Kg8 2.Kd5 >>> +- (3.08) Depth: 3/5 00:00:00 >>>1.Ra7 Kg8 2.Kd5 >>> +- (3.08) Depth: 3/5 00:00:00 >>>1.Ra7 Kg8 2.Kb5 Bb1 >>> +- (2.82) Depth: 4/7 00:00:00 >>>1.Ra7 Kg8 2.Kb5 Kf8 >>> +- (2.51) Depth: 4/7 00:00:00 >>>1.Rc7 Be4+ 2.Kb5 Bd5 3.Kb6 >>> +- (2.52) Depth: 4/7 00:00:00 >>>1.Rc7 Bc2 2.Kd5 Bb3+ 3.Kc5 >>> +- (2.87) Depth: 4/7 00:00:00 >>>1.Rc7 Bc2 2.Bh2 Kg8 >>> +- (2.87) Depth: 4/7 00:00:00 >>>1.Rc7 Bb1 2.Bd6+ Kg8 3.Rc8+ Kh7 4.Rf8 >>> +- (2.80) Depth: 5/8 00:00:00 >>>1.Ra7 Bc2 2.Kd5 Bb3+ 3.Kd6 Ke8 >>> +- (2.81) Depth: 5/8 00:00:00 >>>1.Ra7 Bh3 2.Kd6 Kg8 3.Kd5 >>> +- (2.88) Depth: 5/12 00:00:00 >>>1.Ra7 Bh3 2.Bd6+ Kg8 3.Rd7 >>> +- (2.92) Depth: 6/12 00:00:00 >>>1.Bd6 Kg8 2.Kd5 Bd3 3.Bc5 Ng7 4.Bb4 >>> +- (2.96) Depth: 7/16 00:00:00 92kN, tb=143 >>>1.Bd6 Kg8 2.Kd5 Bd3 3.Bc5 Ng7 4.Bb4 >>> +- (2.96) Depth: 7/16 00:00:00 92kN, tb=143 >>>1.Bd6 Kg8 2.Kd5 Bd3 3.Bc5 Ng7 4.Bb4 >>> +- (2.96) Depth: 7/16 00:00:00 92kN, tb=143 >>>1.Bd6 Kg8 2.Kd5 Bd3 3.Be5 Kf8 4.Rd7 Ke8 >>> +- (2.97) Depth: 8/16 00:00:01 171kN, tb=210 >>>1.Bd6 Bd3 >>> +- (3.00) Depth: 9/16 00:00:01 250kN, tb=277 >>>1.Bd6 Kg8 2.Kd5 Bg4 3.Be5 Kf8 4.Ra7 Ke8 5.Kd4 Nf4 6.Bxf4 >>> +- (2.95) Depth: 10/18 00:00:01 363kN, tb=333 >>>1.Rc7 Kg8 >>> +- (2.96) Depth: 10/18 00:00:01 370kN, tb=343 >>>1.Rc7 Kg8 2.Kc5 Bh3 3.Ra7 Bg2 4.Kd4 Bf1 5.Re7 Bh3 6.Kc5 >>> +- (2.98) Depth: 10/18 00:00:01 416kN, tb=357 >>>1.Kd6 Bh3 2.Rc7 Bg2 3.Rc8+ Kf7 4.Kc5 Be4 5.Rc7+ Ke6 6.Kd4 Bb1 7.Rf7 >>> +- (2.99) Depth: 10/18 00:00:02 480kN, tb=454 >>>1.Kd6 Bh3 2.Rc7 Bg2 3.Rc8+ Kf7 4.Kc5 Be4 5.Rc7+ Ke6 6.Kd4 Bb1 7.Rf7 >>> +- (2.99) Depth: 10/18 00:00:02 480kN, tb=454 >>>1.Kd6 Bh3 2.Rc7 Bg2 3.Bf6 Nxf6 4.gxf6 Be4 5.Rc8+ Kf7 6.Ke5 Bf5 7.Re8 >>> +- (3.00) Depth: 11/20 00:00:02 641kN, tb=527 >>>1.Rc7 Kg8 2.Kd5 Bh3 3.Ke4 Bf5+ 4.Kf3 Be6 5.Bd6 >>> +- (3.03) Depth: 11/20 00:00:02 648kN, tb=535 >>>1.Rc7 Kg8 2.Kd5 Bh3 3.Ke4 Bf5+ 4.Kf3 Be6 5.Bd6 >>> +- (3.03) Depth: 11/20 00:00:02 648kN, tb=535 >>>1.Rc7 Kg8 2.Kd5 Bh3 3.Ke4 Bf5+ 4.Kd4 Be6 >>> +- (3.03) Depth: 12/18 00:00:02 721kN, tb=570 >>>1.Rc7 Kg8 2.Kd5 Bh3 3.Ke4 Bf5+ 4.Kd4 Be6 >>> +- (3.03) Depth: 13/16 00:00:03 843kN, tb=658 >>>1.Rc7 Kg8 2.Kd5 Bh3 3.Ke4 Bf5+ 4.Kd4 Be6 >>> +- (3.03) Depth: 14/20 00:00:04 1031kN, tb=924 >>>1.Rc7 Kg8 2.Kd5 Bh3 3.Ke4 Bf5+ 4.Kd4 Be6 5.Ra7 >>> +- (3.03) Depth: 15/18 00:00:05 1257kN, tb=1368 >>>1.Rc7 Kg8 2.Kd5 Bh3 3.Ke4 Bf5+ 4.Kd4 Be6 5.Re7 Bb3 6.Rc7 >>> +- (2.98) Depth: 16/22 00:00:08 1793kN, tb=2195 >>>1.Kd6 Kg8 >>> +- (2.99) Depth: 16/22 00:00:08 1996kN, tb=2346 >>>1.Kd6 Bh3 2.Rc7 Bf5 3.Rh7 Bh3 4.Rh8+ Kf7 >>> +- (3.05) Depth: 16/27 00:00:21 7501kN, tb=6817 >>>1.Kd6 Bh3 2.Rc7 Bf5 3.Rh7 Bh3 >>> +- (3.05) Depth: 17/25 00:00:35 10257kN, tb=13511 >>>1.Kd6 Bh3 2.Rc7 Ke8 3.Rh7 Bf5 >>> +- (3.05) Depth: 18/28 00:00:40 12348kN, tb=15285 >>>1.Kd6 Bh3 2.Ra7 Bg2 3.Ra2 Be4 4.Ra3 Bg2 5.Rc3 Kf7 >>> +- (3.08) Depth: 19/28 00:01:00 20793kN, tb=26513 >>>1.Kd6 Bh3 2.Ra7 Bg2 3.Ra2 Be4 4.Ra7 Bc6 >>> +- (3.08) Depth: 20/29 00:01:19 27129kN, tb=41484 >>>1.Kd6 Bh3 2.Ra7 Bg2 3.Ra2 Be4 4.Ra7 Bc6 >>> +- (3.08) Depth: 21/31 00:01:42 32348kN, tb=59421 >>>1.Kd6 Bh3 2.Ra7 Bg2 3.Ra2 Be4 4.Ra7 Bc6 >>> +- (3.08) Depth: 22/32 00:02:32 45032kN, tb=101041 >>> >>>(White, Cupertino 22.09.2003) >> >>This is not a solution. >> >>Michael >Oh. What is the key? 89.Ra7 was played in the game. I do not know if it is the only solution. Uri
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