Dev Builds » 20121013-0840

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 07:56:38 1994352 3338 71 2278 989 -276.18 +/- 10.82
ncm-et-4 07:56:42 1997617 3327 67 2264 996 -275.67 +/- 10.78
ncm-et-9 07:56:46 1987562 3348 60 2318 970 -284.49 +/- 10.92
ncm-et-10 07:56:21 1992666 3317 48 2259 1010 -279.53 +/- 10.67
ncm-et-13 07:56:15 1993941 3333 73 2252 1008 -271.64 +/- 10.71
ncm-et-15 07:56:49 1994772 3337 66 2272 999 -276.11 +/- 10.76
20000 385 13643 5972 -277.24 +/- 4.4

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
116460 ncm-et-4 2020-02-19 09:58 00:22:49 1967701 153 3 104 46 -275.53 +/- 50.92
116459 ncm-et-10 2020-02-19 09:57 00:23:51 1968312 167 1 113 53 -282.1 +/- 46.87
116458 ncm-et-13 2020-02-19 09:57 00:24:14 1959388 170 3 114 53 -271.14 +/- 47.25
116457 ncm-et-15 2020-02-19 09:56 00:24:38 1971421 168 5 121 42 -294.93 +/- 53.5
116456 ncm-et-3 2020-02-19 09:56 00:24:38 1962918 175 4 115 56 -260.07 +/- 45.97
116455 ncm-et-9 2020-02-19 09:56 00:24:56 1967076 167 2 120 45 -305.86 +/- 51.54
116454 ncm-et-15 2020-02-19 08:45 01:10:25 1966773 500 8 331 161 -266.97 +/- 26.8
116453 ncm-et-3 2020-02-19 08:44 01:11:22 1962303 500 11 341 148 -275.45 +/- 28.09
116452 ncm-et-9 2020-02-19 08:44 01:11:05 1967868 500 13 344 143 -276.69 +/- 28.62
116451 ncm-et-13 2020-02-19 08:43 01:12:01 1963384 500 13 326 161 -255.3 +/- 26.9
116450 ncm-et-4 2020-02-19 08:43 01:13:56 1973767 500 6 353 141 -297.28 +/- 28.72
116449 ncm-et-10 2020-02-19 08:43 01:12:54 1961237 500 8 339 153 -276.69 +/- 27.55
116448 ncm-et-15 2020-02-19 07:31 01:13:01 1973740 500 12 327 161 -257.59 +/- 26.89
116447 ncm-et-9 2020-02-19 07:31 01:11:57 1968504 500 13 351 136 -285.49 +/- 29.36
116446 ncm-et-4 2020-02-19 07:30 01:12:01 1963863 500 9 344 147 -281.68 +/- 28.16
116445 ncm-et-10 2020-02-19 07:30 01:12:06 1964620 500 7 343 150 -282.94 +/- 27.82
116444 ncm-et-3 2020-02-19 07:30 01:13:11 1960769 500 9 336 155 -271.78 +/- 27.38
116443 ncm-et-13 2020-02-19 07:29 01:13:11 1960312 500 7 337 156 -275.45 +/- 27.24
116442 ncm-et-10 2020-02-19 06:17 01:11:31 1967237 500 9 326 165 -259.91 +/- 26.48
116441 ncm-et-13 2020-02-19 06:17 01:10:51 1963378 500 16 332 152 -258.75 +/- 27.74
116440 ncm-et-4 2020-02-19 06:17 01:11:51 1972988 500 14 327 159 -255.3 +/- 27.09
116439 ncm-et-9 2020-02-19 06:17 01:12:35 1967080 500 8 334 158 -270.57 +/- 27.08
116438 ncm-et-15 2020-02-19 06:17 01:12:36 1975915 500 12 310 178 -238.66 +/- 25.48
116437 ncm-et-3 2020-02-19 06:17 01:11:28 1965071 500 15 356 129 -289.36 +/- 30.14
44062 ncm-et-10 2018-06-30 13:55 00:20:24 2019045 150 0 111 39 -330.22 +/- 55.1
44061 ncm-et-13 2018-06-30 13:53 00:22:57 2025244 163 5 105 53 -248.25 +/- 47.34
44060 ncm-et-15 2018-06-30 13:52 00:23:34 2017583 169 3 127 39 -325.46 +/- 55.75
44059 ncm-et-3 2018-06-30 13:52 00:23:41 2026718 163 6 108 49 -255.17 +/- 49.35
44058 ncm-et-4 2018-06-30 13:52 00:23:55 2025081 174 2 125 47 -306.07 +/- 50.37
44057 ncm-et-9 2018-06-30 13:49 00:26:45 1954559 181 2 130 49 -306.27 +/- 49.29
44056 ncm-et-13 2018-06-30 12:41 01:11:04 2027210 500 9 335 156 -270.57 +/- 27.29
44055 ncm-et-10 2018-06-30 12:41 01:13:27 2020184 500 6 328 166 -265.78 +/- 26.3
44054 ncm-et-3 2018-06-30 12:41 01:10:26 2024917 500 11 352 137 -289.36 +/- 29.25
44053 ncm-et-4 2018-06-30 12:41 01:10:11 2025735 500 12 351 137 -286.77 +/- 29.25
44052 ncm-et-15 2018-06-30 12:40 01:11:07 2016771 500 8 346 146 -285.49 +/- 28.24
44051 ncm-et-9 2018-06-30 12:39 01:09:28 2026884 500 8 336 156 -273.0 +/- 27.26
44050 ncm-et-13 2018-06-30 11:29 01:10:51 2027538 500 14 346 140 -277.93 +/- 28.93
44049 ncm-et-10 2018-06-30 11:29 01:10:58 2021162 500 5 362 133 -311.06 +/- 29.6
44048 ncm-et-15 2018-06-30 11:29 01:10:27 2017583 500 8 363 129 -308.24 +/- 30.14
44047 ncm-et-9 2018-06-30 11:28 01:09:16 2024428 500 5 359 136 -306.84 +/- 29.25
44046 ncm-et-3 2018-06-30 11:28 01:11:49 2025572 500 9 337 154 -273.0 +/- 27.48
44045 ncm-et-4 2018-06-30 11:28 01:11:54 2026884 500 6 327 167 -264.6 +/- 26.21
44044 ncm-et-3 2018-06-30 10:17 01:10:03 2026554 500 6 333 161 -271.78 +/- 26.74
44043 ncm-et-13 2018-06-30 10:17 01:11:06 2025081 500 6 357 137 -302.7 +/- 29.16
44042 ncm-et-4 2018-06-30 10:17 01:10:05 2024917 500 15 333 152 -261.07 +/- 27.74
44041 ncm-et-15 2018-06-30 10:17 01:11:01 2018396 500 10 347 143 -284.22 +/- 28.59
44040 ncm-et-10 2018-06-30 10:17 01:11:10 2019534 500 12 337 151 -269.37 +/- 27.81
44039 ncm-et-9 2018-06-30 10:17 01:10:44 2024100 500 9 344 147 -281.68 +/- 28.16

Commit

Commit ID 6c8663341eab5c45e57c85a0b1d7f79f52fa1709
Author Marco Costalba
Date 2012-10-13 08:40:38 UTC
Scale contempt factor to zero at endgame Contempt Factor is more effective at opening/middle game and seems harmful at endgame phase. See: http://chessprogramming.wikispaces.com/Contempt+Factor http://web.archive.org/web/20070707023203/www.brucemo.com/compchess/programming/contempt.htm Therefore we scale down the contempt factor while going on with the game so to reach zero at endgame phase. No functional change.
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