Author: Vincent Diepeveen
Date: 05:10:57 08/14/02
Go up one level in this thread
On August 14, 2002 at 07:23:46, Andrew Williams wrote:
>Yesterday PM and Sjeng played a game in which Sjeng found Nxc5! in this
>position:
>
>[D]5nk1/r1q1b2p/1Np1p1p1/p1Pp1p2/Q2Pn3/P3PN2/5PPP/1R2B1K1 b - - 0 26 bm Nxc5
>
>This took 27 seconds on GCP's AMD Athlon XP 1800, albeit with the benefit of
>populated hash tables. PM takes 1:27 seconds to find it from a standing start on
>my Athlon 1200.
00:00 1833 2k 0 0 55 (2) 1 -0.819 Be7xc5 d4xc5 Ne4xc5
00:00 1885 2k 0 0 132 (2) 1 -0.665 f5-f4 Be1xa5 f4xe3 f2xe3
00:00 2000 2k 0 0 240 (2) 2 -1.219 f5-f4 Nf3-e5 f4xe3 Ne5xc6
++ e7-c5
00:00 1590 2k 0 0 318 (2) 2 -0.819 Be7xc5 d4xc5 Ne4xc5
00:00 2796 3k 0 0 699 (2) 3 -0.819 Be7xc5 d4xc5 Ne4xc5
++ f5-f4
00:00 3981 4k 0 0 1274 (2) 3 -0.665 f5-f4 Be1xa5 f4xe3 f2xe3
++ e7-f6
00:00 4666 5k 0 0 1960 (2) 3 -0.562 Be7-f6 Be1xa5 e6-e5
00:00 9936 10k 0 0 4571 (2) 4 -0.328 Be7-f6 Be1xa5 Ne4-c3 Ba5xc3 Ra7xa4 Nb6xa
4
00:00 19466 19k 0 0 11096 (2) 5 -0.328 Be7-f6 Be1xa5 Ne4-c3 Ba5xc3 Ra7xa4 Nb6x
a4
00:00 33293 33k 0 0 24304 (2) 6 -0.328 Be7-f6 Be1xa5 Ne4-c3 Ba5xc3 Ra7xa4 Nb6x
a4
00:01 84105 84k 0 0 143820 (2) 7 -0.246 Be7-f6 Rb1-c1 f5-f4 Be1xa5 f4xe3 f2xe3
Nf8-d7
00:02 97270 97k 0 0 228586 (2) 8 -0.311 Be7-f6 Rb1-c1 f5-f4 Be1xa5 f4xe3 f2xe3
e6-e5 Nf3xe5 Bf6xe5 d4xe5 Qc7xe5
00:06 119960 120k 0 0 821731 (2) 9 -0.234 Be7-f6 Rb1-c1 f5-f4 Be1xa5 f4xe3 f2xe3
Bf6-g7 Rc1-c2 Bg7-h6
00:10 136814 137k 0 0 1444766 (2) 10 -0.303 Be7-f6 Rb1-c1 f5-f4 Rc1-c2 Ne4-g5 Nf
3xg5 Bf6xg5 e3xf4 Bg5xf4 Be1xa5
++ e4-c5
00:17 147038 147k 0 0 2509955 (2) 10 0.087 Ne4xc5 d4xc5 Be7xc5 Qa4-b3 Ra7-b7 Be1
xa5 Nf8-d7 Nf3-d4 Qc7-d6 Qb3-a4 Nd7xb6 Qa4xc6 Qd6xc6 Nd4xc6
00:18 152401 152k 0 0 2825526 (2) 11 0.087 Ne4xc5 d4xc5 Be7xc5 Qa4-b3 Ra7-b7 Be1
xa5 Nf8-d7 Nf3-d4 Qc7-d6 Qb3-a4 Nd7xb6 Qa4xc6 Qd6xc6 Nd4xc6
00:22 159791 160k 0 0 3569736 (2) 12 -0.192 Ne4xc5 d4xc5 Be7xc5 Qa4-b3 Ra7-b7 Be
1xa5 Nf8-d7 Nf3-d4 Bc5xb6 Nd4xe6 Qc7-d6 Ne6-d8
00:51 152634 153k 0 0 7862195 (2) 13 -0.070 Ne4xc5 d4xc5 Be7xc5 Qa4-b3 Ra7-b7 Be
1xa5 Nf8-d7 Nf3-d4 Bc5xb6 Nd4xe6 Qc7-d6 Ba5xb6 Qd6xe6
01:49 161949 162k 0 0 17770766 (2) 14 0.074 Ne4xc5 d4xc5 Be7xc5 Qa4-b3 Ra7-b7 Be
1xa5 Nf8-d7 Nf3-d4 Bc5xb6 Nd4xe6 Qc7-e5 Ne6-d8 Nd7-c5 Qb3-a2 Bb6xd8 Ba5xd8 Rb7xb
1 Qa2xb1
Ah parallel speedup of current version not so well yet. This is obviously
latest very experimental version where i'm busy rewriting. let's see
how speedup is later. single cpu it needs 18 seconds :)
00:00 1833 2k 0 0 55 (1) 1 -0.819 Be7xc5 d4xc5 Ne4xc5
00:00 1650 2k 0 0 132 (1) 1 -0.665 f5-f4 Be1xa5 f4xe3 f2xe3
00:00 2000 2k 0 0 240 (1) 2 -1.219 f5-f4 Nf3-e5 f4xe3 Ne5xc6
++ e7-c5
00:00 1590 2k 0 0 318 (1) 2 -0.819 Be7xc5 d4xc5 Ne4xc5
00:00 2796 3k 0 0 699 (1) 3 -0.819 Be7xc5 d4xc5 Ne4xc5
++ f5-f4
00:00 3860 4k 0 0 1274 (1) 3 -0.665 f5-f4 Be1xa5 f4xe3 f2xe3
++ e7-f6
00:00 4984 5k 0 0 1944 (1) 3 -0.562 Be7-f6 Be1xa5 e6-e5
00:00 9644 10k 0 0 4533 (1) 4 -0.328 Be7-f6 Be1xa5 Ne4-c3 Ba5xc3 Ra7xa4 Nb6xa
4
00:00 17991 18k 0 0 10975 (1) 5 -0.328 Be7-f6 Be1xa5 Ne4-c3 Ba5xc3 Ra7xa4 Nb6x
a4
00:00 30162 30k 0 0 24130 (1) 6 -0.328 Be7-f6 Be1xa5 Ne4-c3 Ba5xc3 Ra7xa4 Nb6x
a4
00:01 60633 61k 0 0 116416 (1) 7 -0.246 Be7-f6 Rb1-c1 f5-f4 Be1xa5 f4xe3 f2xe3
Nf8-d7
00:02 71305 71k 0 0 193952 (1) 8 -0.311 Be7-f6 Rb1-c1 f5-f4 Be1xa5 f4xe3 f2xe3
e6-e5 Nf3xe5 Bf6xe5 d4xe5 Qc7xe5
00:09 78601 79k 0 0 778940 (1) 9 -0.234 Be7-f6 Rb1-c1 f5-f4 Be1xa5 f4xe3 f2xe3
Bf6-g7 Rc1-c2 Bg7-h6
00:14 83344 83k 0 0 1231838 (1) 10 -0.303 Be7-f6 Rb1-c1 f5-f4 Rc1-c2 Ne4-g5 Nf
3xg5 Bf6xg5 e3xf4 Bg5xf4 Be1xa5
++ e4-c5
00:18 85149 85k 0 0 1552283 (1) 10 0.087 Ne4xc5 d4xc5 Be7xc5 Qa4-b3 Ra7-b7 Be1
xa5 Nf8-d7 Nf3-d4 Qc7-d6 Qb3-a4 Nd7xb6 Qa4xc6 Qd6xc6 Nd4xc6
This is diep without extensions though.
with it plays nxc5 instantly only 2 ply it shortly isn't because
of seeing a 12 ply PV real soon.
the WCC 2002 version now (with SE, so you see the 12 ply score it
sees instantly at 8 ply):
Of course parallel speedup of the wcc version is pretty ok at 2 processors:
00:00 4k 0 0 4426 (633) 4 -0.328 Be7-f6 Be1xa5 Ne4-c3 Ba5xc3 Ra7xa4 Nb6xa4
00:00 11k 0 0 10573 (633) 5 -0.328 Be7-f6 Be1xa5 Ne4-c3 Ba5xc3 Ra7xa4 Nb6xa4
00:00 24k 0 0 23832 (768) 6 -0.328 Be7-f6 Be1xa5 Ne4-c3 Ba5xc3 Ra7xa4 Nb6xa4
++ e4-c5
00:01 39k 0 0 53585 (856) 6 -0.294 Ne4xc5 d4xc5 Be7xc5 Qa4-b3 Ra7-b7 Be1xa5 Nf8
-d7 Nf3-g5 e6-e5
00:01 39k 0 0 65317 (856) 7 -0.294 Ne4xc5 d4xc5 Be7xc5 Qa4-b3 Ra7-b7 Be1xa5 Nf8
-d7 Nf3-g5 e6-e5
++ e7-f6
00:03 70k 0 0 216717 (41800) 7 -0.246 Be7-f6 Rb1-c1 f5-f4 Be1xa5 f4xe3 f2xe3 Nf
8-d7
00:04 72k 0 0 312570 (43604) 8 -0.311 Be7-f6 Rb1-c1 f5-f4 Be1xa5 f4xe3 f2xe3 e6
-e5 Nf3xe5 Bf6xe5 d4xe5 Qc7xe5
++ e4-c5
00:06 88k 0 0 603912 (114594) 8 -0.192 Ne4xc5 d4xc5 Be7xc5 Qa4-b3 Ra7-b7 Be1xa5
Nf8-d7 Nf3-g5 Bc5xb6 Ng5xe6 Qc7-d6 Ne6-d8
00:07 92k 0 0 728796 (117117) 9 -0.192 Ne4xc5 d4xc5 Be7xc5 Qa4-b3 Ra7-b7 Be1xa5
Nf8-d7 Nf3-g5 Bc5xb6 Ng5xe6 Qc7-d6 Ne6-d8
00:10 104k 0 0 1071764 (136008) 10 -0.192 Ne4xc5 d4xc5 Be7xc5 Qa4-b3 Ra7-b7 Be1x
a5 Nf8-d7 Nf3-g5 Bc5xb6 Ng5xe6 Qc7-d6 Ne6-d8
00:19 124k 0 0 2381572 (245193) 11 -0.192 Ne4xc5 d4xc5 Be7xc5 Qa4-b3 Ra7-b7 Be1x
a5 Nf8-d7 Nf3-g5 Bc5xb6 Ng5xe6 Qc7-d6 Ne6-d8
00:36 141k 0 0 5205978 (414835) 12 -0.192 Ne4xc5 d4xc5 Be7xc5 Qa4-b3 Ra7-b7 Be1x
a5 Nf8-d7 Nf3-g5 Bc5xb6 Ng5xe6 Qc7-d6 Ne6-d8
01:53 150k 0 0 17043875 (2009783) 13 -0.070 Ne4xc5 d4xc5 Be7xc5 Qa4-b3 Ra7-b7 Be
1xa5 Nf8-d7 Nf3-d4 Bc5xb6 Nd4xe6 Qc7-d6 Ba5xb6 Qd6xe6
>The game changed completely after 38..Nd6??, which loses to Be7. The full game
>follows:
>
>[Event "ICS Rated standard match"]
>[Site "204.178.125.65"]
>[Date "2002.08.13"]
>[Round "-"]
>[White "PostModernist"]
>[Black "Sjeng"]
>[Result "1-0"]
>[WhiteElo "2483"]
>[BlackElo "2488"]
>[TimeControl "1800+10"]
>
>1. d4 d5 2. c4 e6 3. Nf3 c6 4. Qc2 f5 5. e3 Nf6 6. Bd2 Be7 7. Bd3 O-O 8.
>O-O Ne4 9. Rd1 Nd7 10. Be1 a6 11. Nc3 b6 12. b4 Bb7 13. c5 a5 14. a3 bxc5
>15. bxc5 Qc7 16. Rab1 Ba6 17. Bxa6 Rxa6 18. Rb2 Rb8 19. Rxb8+ Qxb8 20. Rb1
>Qc7 21. Qb3 Ra7 22. Na4 g6 23. Nb6 Nf8 24. Na4 Nd7 25. Nb6 Nf8 26. Qa4 Nxc5
>27. dxc5 Bxc5 28. Qb3 Rb7 29. Bxa5 Nd7 30. Nd4 Bxb6 31. Nxe6 Qe5 32. Nd8
>Nc5 33. Qd1 Bxd8 34. Bxd8 f4 35. Rxb7 Nxb7 36. exf4 Qd6 37. Bg5 Qxa3 38.
>Qe1 Nd6 39. Be7 Kf7 40. g4 Qa7 41. Bxd6 Qd7 42. Bc5 Qxg4+ 43. Kf1 Qh3+ 44.
>Ke2 Qe6+ 45. Kd2 Qxe1+ 46. Kxe1 Ke6 47. Ke2 Kf5 48. Ke3 h5 49. h3 h4 50.
>Bb6 Ke6 51. Kf3 Kd6 52. Kg4 c5 53. Kg5 d4 54. Kxg6 d3 55. Ba5 Kc6 56. f5
>Kb5 57. Be1 Kc6 58. f6 Kd6 59. f7 Ke7 60. f4 c4 61. Bb4+ Kd7 62. f8=Q d2
>63. Qd6+ Kc8 64. Qc6+ Kb8 65. Bd6+ Ka7 66. Bc7 d1=N 67. Qb6+ Ka8 68. Qb8#
>{Sjeng checkmated} 1-0
>
>
>Andrew
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