Dev Builds » 20210131-0900

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 08:18:21 1970420 3344 2634 23 687 +363.91 +/- 12.99
ncm-et-4 08:18:30 1956161 3304 2631 20 653 +372.49 +/- 13.32
ncm-et-9 08:18:27 1966908 3361 2680 15 666 +374.97 +/- 13.18
ncm-et-10 08:18:24 1956926 3340 2656 14 670 +373.2 +/- 13.14
ncm-et-13 08:18:22 1961824 3328 2622 21 685 +364.58 +/- 13.0
ncm-et-15 08:18:09 1967835 3323 2632 19 672 +368.89 +/- 13.13
20000 15855 112 4033 +369.63 +/- 5.35

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
142860 ncm-et-4 2021-02-02 14:17 00:45:41 1963843 304 240 6 58 +354.27 +/- 45.32 ↓
142859 ncm-et-15 2021-02-02 14:16 00:46:44 1971417 323 240 1 82 +330.18 +/- 37.71 ↓
142858 ncm-et-13 2021-02-02 14:13 00:49:43 1958470 328 269 0 59 +402.04 +/- 44.85 ↓
142857 ncm-et-10 2021-02-02 14:13 00:50:17 1961868 340 272 2 66 +376.09 +/- 42.46 ↓
142856 ncm-et-3 2021-02-02 14:11 00:52:02 1969711 344 277 1 66 +383.95 +/- 42.39 ↓
142855 ncm-et-9 2021-02-02 14:09 00:53:48 1968482 361 292 4 65 +379.57 +/- 42.85 ↓
142854 ncm-et-15 2021-02-02 13:00 01:14:36 1968016 500 401 4 95 +375.98 +/- 35.27 ↓
142853 ncm-et-4 2021-02-02 13:00 01:16:32 1928681 500 396 2 102 +370.41 +/- 33.92 ↓
142852 ncm-et-10 2021-02-02 12:58 01:14:08 1956794 500 391 3 106 +359.68 +/- 33.28 ↓
142851 ncm-et-13 2021-02-02 12:57 01:15:35 1962455 500 387 4 109 +351.11 +/- 32.83 ↓
142850 ncm-et-3 2021-02-02 12:56 01:14:15 1971101 500 398 6 96 +366.78 +/- 35.09 ↓
142849 ncm-et-9 2021-02-02 12:54 01:14:08 1969089 500 395 1 104 +370.41 +/- 33.52 ↓
142848 ncm-et-4 2021-02-02 11:45 01:13:33 1976557 500 395 2 103 +368.59 +/- 33.75 ↓
142847 ncm-et-15 2021-02-02 11:43 01:15:49 1964766 500 394 5 101 +361.43 +/- 34.18 ↓
142846 ncm-et-10 2021-02-02 11:42 01:14:31 1960624 500 399 4 97 +372.25 +/- 34.89 ↓
142845 ncm-et-13 2021-02-02 11:41 01:14:26 1963688 500 387 1 112 +356.21 +/- 32.24 ↓
142844 ncm-et-3 2021-02-02 11:41 01:13:47 1965381 500 396 2 102 +370.41 +/- 33.92 ↓
142843 ncm-et-9 2021-02-02 11:38 01:14:39 1964456 500 392 3 105 +361.43 +/- 33.45 ↓
142842 ncm-et-4 2021-02-02 10:30 01:14:31 1964772 500 380 1 119 +344.48 +/- 31.22 ↓
142841 ncm-et-15 2021-02-02 10:27 01:15:00 1965692 500 391 1 108 +363.2 +/- 32.86 ↓
142840 ncm-et-3 2021-02-02 10:27 01:12:50 1974358 500 396 4 100 +366.78 +/- 34.34 ↓
142839 ncm-et-10 2021-02-02 10:27 01:14:08 1961541 500 394 2 104 +366.78 +/- 33.58 ↓
142838 ncm-et-13 2021-02-02 10:26 01:14:24 1960467 500 399 3 98 +374.11 +/- 34.68 ↓
142837 ncm-et-9 2021-02-02 10:24 01:13:49 1966463 500 400 0 100 +381.69 +/- 34.16 ↓
142836 ncm-et-4 2021-02-02 09:14 01:14:37 1969562 500 411 5 84 +393.6 +/- 37.58 ↓
142835 ncm-et-15 2021-02-02 09:11 01:15:15 1965545 500 401 2 97 +379.78 +/- 34.83 ↓
142834 ncm-et-3 2021-02-02 09:11 01:14:57 1970184 500 392 4 104 +359.68 +/- 33.64 ↓
142833 ncm-et-13 2021-02-02 09:10 01:14:37 1965227 500 392 3 105 +361.43 +/- 33.45 ↓
142832 ncm-et-10 2021-02-02 09:09 01:16:45 1936566 500 413 0 87 +408.38 +/- 36.75 ↓
142831 ncm-et-9 2021-02-02 09:08 01:14:29 1962609 500 407 4 89 +387.57 +/- 36.48 ↓
142830 ncm-et-4 2021-02-02 07:57 01:16:13 1958776 500 408 2 90 +393.6 +/- 36.22 ↓
142829 ncm-et-3 2021-02-02 07:55 01:14:55 1973738 500 384 2 114 +349.43 +/- 31.99 ↓
142828 ncm-et-15 2021-02-02 07:54 01:16:12 1970169 500 406 3 91 +387.57 +/- 36.04 ↓
142827 ncm-et-13 2021-02-02 07:54 01:15:20 1960768 500 392 5 103 +357.94 +/- 33.83 ↓
142826 ncm-et-10 2021-02-02 07:53 01:14:43 1960011 500 393 2 105 +364.98 +/- 33.41 ↓
142825 ncm-et-9 2021-02-02 07:53 01:13:58 1964764 500 391 2 107 +361.43 +/- 33.08 ↓
142824 ncm-et-9 2021-02-02 06:38 01:13:36 1972494 500 403 1 96 +385.59 +/- 34.96 ↓
142823 ncm-et-10 2021-02-02 06:38 01:13:52 1961080 500 394 1 105 +368.59 +/- 33.35 ↓
142822 ncm-et-3 2021-02-02 06:38 01:15:35 1968470 500 391 4 105 +357.94 +/- 33.48 ↓
142821 ncm-et-4 2021-02-02 06:38 01:17:23 1930939 500 401 2 97 +379.78 +/- 34.83 ↓
142820 ncm-et-13 2021-02-02 06:38 01:14:17 1961694 500 396 5 99 +364.98 +/- 34.53 ↓
142819 ncm-et-15 2021-02-02 06:38 01:14:33 1969242 500 399 3 98 +374.11 +/- 34.68 ↓

Commit

Commit ID 7d0a16e06d968c81f17140b0123db9768ce02a82
Author bmc4
Date 2021-01-31 09:00:17 UTC
Avoid more expensive legality check speedup of the code, enough to pass STC, failed LTC. Passed STC: LLR: 2.93 (-2.94,2.94) {-0.25,1.25} Total: 68928 W: 6334 L: 6122 D: 56472 Ptnml(0-2): 233, 4701, 24369, 4943, 218 https://tests.stockfishchess.org/tests/view/6002747f6019e097de3ef8dc Failed LTC: LLR: -2.96 (-2.94,2.94) {0.25,1.25} Total: 44560 W: 1702 L: 1675 D: 41183 Ptnml(0-2): 25, 1383, 19438, 1408, 26 https://tests.stockfishchess.org/tests/view/6002a4836019e097de3ef8e3 About 1% speedup: Result of 50 runs ================== base (...kfish.master) = 2237500 +/- 7428 test (...ckfish.patch) = 2267003 +/- 7017 diff = +29503 +/- 4774 speedup = +0.0132 P(speedup > 0) = 1.0000 closes https://github.com/official-stockfish/Stockfish/pull/3304 No functional change.
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