Dev Builds » 20130215-1525

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 7. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host Duration Avg Base NPS Games Wins Losses Draws Elo
ncm-et-3 06:22:16 1989802 2657 44 1838 775 -284.98 +/- 12.21
ncm-et-4 06:23:29 1980655 2673 55 1787 831 -268.14 +/- 11.79
ncm-et-6 02:22:14 2025817 1000 18 688 294 -281.68 +/- 19.86
ncm-et-7 02:21:54 2025737 996 24 641 331 -251.6 +/- 18.7
ncm-et-9 06:23:07 1987537 2664 56 1825 783 -277.95 +/- 12.16
ncm-et-10 06:23:07 1978005 2654 54 1813 787 -277.16 +/- 12.13
ncm-et-11 02:21:38 2026120 1008 27 698 283 -278.97 +/- 20.29
ncm-et-12 02:21:33 2012236 1002 20 703 279 -289.12 +/- 20.42
ncm-et-13 06:23:58 1987152 2664 49 1798 817 -273.33 +/- 11.89
ncm-et-15 06:23:01 1989081 2682 52 1814 816 -273.59 +/- 11.9
20000 399 13605 5996 -275.64 +/- 4.39

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
110449 ncm-et-10 2020-01-04 22:39 00:21:45 1964302 154 6 105 43 -265.1 +/- 52.76
110448 ncm-et-3 2020-01-04 22:38 00:22:43 1960464 152 4 105 43 -278.22 +/- 52.85
110447 ncm-et-9 2020-01-04 22:37 00:23:51 1968166 164 0 107 57 -270.83 +/- 44.64
110446 ncm-et-13 2020-01-04 22:37 00:24:08 1964147 166 8 106 52 -235.64 +/- 47.79
110445 ncm-et-15 2020-01-04 22:35 00:25:50 1969248 182 6 115 61 -240.23 +/- 44.03
110444 ncm-et-4 2020-01-04 22:35 00:25:56 1960173 182 4 126 52 -281.89 +/- 47.89
110443 ncm-et-10 2020-01-04 21:25 01:13:03 1947595 500 10 333 157 -266.97 +/- 27.22
110442 ncm-et-3 2020-01-04 21:24 01:13:11 1962302 500 5 347 148 -290.66 +/- 27.95
110441 ncm-et-13 2020-01-04 21:24 01:12:23 1968932 500 12 340 148 -273.0 +/- 28.11
110440 ncm-et-9 2020-01-04 21:23 01:12:55 1967552 500 6 346 148 -288.06 +/- 27.99
110439 ncm-et-4 2020-01-04 21:23 01:11:09 1972518 500 15 313 172 -238.66 +/- 26.0
110438 ncm-et-15 2020-01-04 21:21 01:13:13 1975138 500 7 329 164 -265.78 +/- 26.51
110437 ncm-et-10 2020-01-04 20:11 01:13:01 1957255 500 10 346 144 -282.94 +/- 28.49
110436 ncm-et-9 2020-01-04 20:11 01:11:26 1968017 500 14 344 142 -275.45 +/- 28.72
110435 ncm-et-13 2020-01-04 20:10 01:12:31 1969241 500 4 350 146 -295.94 +/- 28.12
110434 ncm-et-4 2020-01-04 20:10 01:12:02 1963685 500 10 331 159 -264.6 +/- 27.03
110433 ncm-et-3 2020-01-04 20:10 01:13:15 1964000 500 4 353 143 -299.97 +/- 28.44
110432 ncm-et-15 2020-01-04 20:09 01:10:43 1973273 500 14 358 128 -293.29 +/- 30.27
110431 ncm-et-4 2020-01-04 18:57 01:11:48 1962149 500 8 331 161 -266.97 +/- 26.8
110430 ncm-et-10 2020-01-04 18:57 01:13:19 1955413 500 7 329 164 -265.78 +/- 26.51
110429 ncm-et-15 2020-01-04 18:57 01:11:34 1974669 500 10 335 155 -269.37 +/- 27.4
110428 ncm-et-9 2020-01-04 18:57 01:13:05 1970017 500 13 331 156 -261.07 +/- 27.35
110427 ncm-et-3 2020-01-04 18:57 01:12:01 1964148 500 8 332 160 -268.17 +/- 26.89
110426 ncm-et-13 2020-01-04 18:57 01:12:21 1968955 500 8 331 161 -266.97 +/- 26.8
39436 ncm-et-12 2018-06-07 03:38 00:01:04 1995035 2 0 2 0 -1199.83 +/- 312.71
39435 ncm-et-3 2018-06-07 03:37 00:01:16 2025081 5 0 5 0 -1199.83 +/- 231.31
39434 ncm-et-11 2018-06-07 03:37 00:01:38 2023283 8 0 5 3 -254.61 +/- 287.37
39433 ncm-et-6 2018-06-07 02:30 01:08:55 2025572 500 11 353 136 -290.66 +/- 29.36
39432 ncm-et-7 2018-06-07 02:28 01:10:18 2025572 496 16 317 163 -244.57 +/- 26.76
39431 ncm-et-13 2018-06-07 02:28 01:10:37 2024590 498 10 348 140 -287.23 +/- 28.91
39430 ncm-et-4 2018-06-07 02:28 01:10:36 2013632 491 11 341 139 -283.01 +/- 29.02
39429 ncm-et-10 2018-06-07 02:27 01:10:48 2021814 500 13 342 145 -274.22 +/- 28.41
39428 ncm-et-9 2018-06-07 02:27 01:11:02 2026063 500 12 353 135 -289.36 +/- 29.47
39427 ncm-et-12 2018-06-07 02:27 01:09:36 2022140 500 9 353 138 -293.29 +/- 29.11
39426 ncm-et-3 2018-06-07 02:27 01:09:42 2025081 500 11 340 149 -274.22 +/- 28.0
39425 ncm-et-15 2018-06-07 02:26 01:11:24 2021325 500 5 355 140 -301.33 +/- 28.8
39424 ncm-et-11 2018-06-07 02:26 01:10:08 2027704 500 12 352 136 -288.06 +/- 29.36
39423 ncm-et-7 2018-06-07 01:16 01:11:36 2025903 500 8 324 168 -258.75 +/- 26.19
39422 ncm-et-3 2018-06-07 01:15 01:10:08 2027538 500 12 356 132 -293.29 +/- 29.81
39421 ncm-et-6 2018-06-07 01:15 01:13:19 2026063 500 7 335 158 -273.0 +/- 27.05
39420 ncm-et-9 2018-06-07 01:15 01:10:48 2025408 500 11 344 145 -279.17 +/- 28.4
39419 ncm-et-13 2018-06-07 01:15 01:11:58 2027047 500 7 323 170 -258.75 +/- 25.99
39418 ncm-et-4 2018-06-07 01:15 01:11:58 2011776 500 7 345 148 -285.49 +/- 28.02
39417 ncm-et-15 2018-06-07 01:15 01:10:17 2020836 500 10 322 168 -254.16 +/- 26.24
39416 ncm-et-10 2018-06-07 01:15 01:11:11 2021651 500 8 358 134 -301.33 +/- 29.55
39415 ncm-et-12 2018-06-07 01:15 01:10:53 2019533 500 11 348 141 -284.22 +/- 28.81
39414 ncm-et-11 2018-06-07 01:15 01:09:52 2027374 500 15 341 144 -270.57 +/- 28.52

Commit

Commit ID 5a156df719790ddd882a928ddf721f8ba81587b1
Author Marco Costalba
Date 2013-02-15 15:25:33 UTC
Merge Gary's king safety tweak Still well within error bars, so probably not a big improvement, but may be worthwhile. I will let the test keep running. The idea for the tweak came from the TCEC game against Houdini. Stockfish saw it as a draw, well past when it should have seen problems. King safety was off, since it was QN and pawns only, but in fact the king was quite vulnerable. After 8000 games at 60/1 (Gary's test) ELO: -0.43 +- 99%: 10.02 95%: 7.62 Wins: 1235 Losses: 1245 Draws: 5520 Total: 8000 PGN of game against houdini. Moves 55-59 it was seeing a draw, and Houdini was seeing a good sized advantage for black. With the change, Stockfish now recognizes that moving the king there is a bad idea. [Event "nTCEC - Stage 1 - Season 1"] [Site "http://www.tcec-chess.net"] [Date "2013.02.07"] [Round "4.2"] [White "Stockfish 2.31"] [Black "Houdini 3.0"] [Result "0-1"] [Variant "normal"] 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3 6. Qxc3 b6 7. b4 a5 8. Bb2 axb4 9. axb4 Rxa1+ 10. Bxa1 Na6 11. e3 Qe7 12. b5 Nc5 13. Qc2 Bb7 14. Be2 d6 15. O-O Ra8 16. Bb2 h6 17. Ra1 Rxa1+ 18. Bxa1 e5 19. Qa2 Be4 20. Ne1 Bg6 21. Bb2 Kh7 22. f3 Nfd7 23. Bc3 h5 24. Qa1 h4 25. Kf1 Qf6 26. Qa7 Qd8 27. Qa2 e4 28. Qa1 h3 29. g3 exf3 30. Nxf3 Bf5 31. Bd4 g6 32. Kf2 Kg8 33. Qa3 Bg4 34. d3 Qc8 35. Bxc5 bxc5 36. Ke1 Qb7 37. e4 Bxf3 38. Bxf3 Ne5 39. Be2 Qc8 40. Qa6 Qd8 41. Qa5 Kh7 42. Kd1 Kg7 43. Qa7 Kg8 44. Qa5 Kh7 45. Qa7 Kg7 46. Qa5 Qb8 47. Kd2 Kh7 48. Kc2 Kg8 49. Qa6 Qd8 50. Qa5 Qf6 51. Qe1 Kg7 52. Qf1 Qe6 53. Qe1 Qd7 54. Qc1 Qe8 55. Kc3 Qa8 56. Kb3 Kh7 57. Qa3 Qd8 58. Qc1 c6 59. Qc3 Qb6 60. Ka4 Qb7 61. Qd2 Nd7 62. Qc3 Qa7+ 63. Kb3 Kg8 64. Bg4 cxb5 65. cxb5 Nb6 66. Bxh3 Qa4+ 67. Kb2 Qd1 68. Ka3 Qe2 69. Kb3 Qh5 70. Bg2 Qxh2 71. Qf6 Qxg3 72. Bf1 Qe3 73. Kc2 Na4 74. b6 Nxb6 75. Qd8+ Kg7 76. Qxb6 Qf2+ 77. Kc3 Qxf1 78. Qxd6 Qf6+ 79. Qxf6+ Kxf6 80. Kc4 g5 81. Kxc5 Ke5 82. d4+ Kxe4 83. d5 g4 84. d6 g3 85. d7 g2 86. d8=Q g1=Q+ 87. Kb5 Qb1+ 88. Ka4 Qa2+ 89. Kb4 f5 90. Qe8+ Kf4 91. Qg6 Qd5 92. Qg1 Qe4+ 93. Ka5 Qe2 94. Qg8 Kf3 95. Qd5+ Qe4 96. Qd1+ Kg2 97. Qd2+ Kf1 98. Qh2 f4 99. Qh3+ Ke2 100. Qg4+ Kd2 101. Qg5 Kc2 102. Qh4 0-1 bench: 5518286
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