Dev Builds » 20201223-1920

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 08:14:57 1970689 3330 2631 20 679 +366.85 +/- 13.06
ncm-et-4 08:14:35 1956370 3277 2633 15 629 +380.64 +/- 13.57
ncm-et-9 08:24:35 1965486 3354 2677 9 668 +377.37 +/- 13.14
ncm-et-10 08:24:32 1963329 3353 2691 21 641 +378.16 +/- 13.45
ncm-et-13 08:23:57 1959894 3348 2668 18 662 +373.66 +/- 13.23
ncm-et-15 08:24:51 1970962 3338 2639 21 678 +367.05 +/- 13.07
20000 15939 104 3957 +373.88 +/- 5.4

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
141690 ncm-et-4 2020-12-24 04:49 00:41:13 1960929 277 227 1 49 +397.6 +/- 49.54
141689 ncm-et-3 2020-12-24 04:42 00:48:38 1968483 330 255 3 72 +349.13 +/- 40.58
141688 ncm-et-15 2020-12-24 04:38 00:51:47 1972500 338 265 0 73 +366.79 +/- 40.06
141687 ncm-et-9 2020-12-24 04:38 00:52:28 1971258 354 281 1 72 +373.14 +/- 40.5
141686 ncm-et-10 2020-12-24 04:37 00:53:41 1957706 353 292 2 59 +403.55 +/- 45.06
141685 ncm-et-13 2020-12-24 04:36 00:54:31 1958012 348 279 1 68 +380.59 +/- 41.73
141684 ncm-et-4 2020-12-24 03:34 01:14:02 1974982 500 404 1 95 +387.57 +/- 35.16
141683 ncm-et-3 2020-12-24 03:26 01:14:53 1968313 500 393 5 102 +359.68 +/- 34.0
141682 ncm-et-9 2020-12-24 03:22 01:14:33 1965384 500 402 2 96 +381.7 +/- 35.02
141681 ncm-et-13 2020-12-24 03:21 01:13:08 1962302 500 397 4 99 +368.59 +/- 34.52
141680 ncm-et-15 2020-12-24 03:21 01:16:41 1971887 500 409 3 88 +393.6 +/- 36.68
141679 ncm-et-10 2020-12-24 03:20 01:15:48 1961089 500 406 1 93 +391.57 +/- 35.55
141678 ncm-et-4 2020-12-24 02:17 01:15:14 1965998 500 405 2 93 +387.57 +/- 35.6
141677 ncm-et-3 2020-12-24 02:11 01:13:45 1972496 500 398 0 102 +377.87 +/- 33.8
141676 ncm-et-13 2020-12-24 02:06 01:14:12 1959850 500 406 3 91 +387.57 +/- 36.04
141675 ncm-et-9 2020-12-24 02:06 01:15:13 1964149 500 401 2 97 +379.78 +/- 34.83
141674 ncm-et-10 2020-12-24 02:04 01:14:10 1965227 500 401 2 97 +379.78 +/- 34.83
141673 ncm-et-15 2020-12-24 02:04 01:15:44 1971575 500 399 6 95 +368.59 +/- 35.27
141672 ncm-et-4 2020-12-24 01:01 01:15:07 1963539 500 408 2 90 +393.6 +/- 36.22
141671 ncm-et-3 2020-12-24 00:56 01:14:13 1971117 500 391 1 108 +363.2 +/- 32.86
141670 ncm-et-9 2020-12-24 00:50 01:14:55 1966305 500 391 1 108 +363.2 +/- 32.86
141669 ncm-et-13 2020-12-24 00:50 01:15:20 1962001 500 393 1 106 +366.78 +/- 33.19
141668 ncm-et-10 2020-12-24 00:49 01:14:35 1968157 500 396 6 98 +363.2 +/- 34.72
141667 ncm-et-15 2020-12-24 00:48 01:15:03 1972051 500 389 2 109 +357.94 +/- 32.76
141666 ncm-et-4 2020-12-23 23:45 01:15:34 1964902 500 391 3 106 +359.68 +/- 33.28
141665 ncm-et-3 2020-12-23 23:39 01:15:09 1972506 500 393 5 102 +359.68 +/- 34.0
141664 ncm-et-9 2020-12-23 23:34 01:15:01 1965414 500 405 0 95 +391.57 +/- 35.09
141663 ncm-et-13 2020-12-23 23:33 01:15:21 1959542 500 392 3 105 +361.43 +/- 33.45
141662 ncm-et-10 2020-12-23 23:32 01:16:00 1960318 500 405 4 91 +383.64 +/- 36.06
141661 ncm-et-15 2020-12-23 23:32 01:14:59 1970195 500 388 5 107 +351.11 +/- 33.17
141660 ncm-et-4 2020-12-23 22:28 01:16:01 1968316 500 398 4 98 +370.41 +/- 34.7
141659 ncm-et-3 2020-12-23 22:24 01:13:47 1969864 500 391 4 105 +357.94 +/- 33.48
141658 ncm-et-13 2020-12-23 22:17 01:15:32 1958165 500 394 4 102 +363.2 +/- 33.99
141657 ncm-et-9 2020-12-23 22:17 01:16:11 1969253 500 396 1 103 +372.25 +/- 33.69
141656 ncm-et-15 2020-12-23 22:16 01:14:31 1966319 500 395 4 101 +364.98 +/- 34.16
141655 ncm-et-10 2020-12-23 22:15 01:15:43 1971254 500 401 4 95 +375.98 +/- 35.27
141654 ncm-et-4 2020-12-23 21:09 01:17:24 1895929 500 400 2 98 +377.87 +/- 34.64
141653 ncm-et-3 2020-12-23 21:09 01:14:32 1972050 500 410 2 88 +397.72 +/- 36.65
141652 ncm-et-13 2020-12-23 21:00 01:15:53 1959389 500 407 2 91 +391.57 +/- 36.01
141651 ncm-et-10 2020-12-23 20:59 01:14:35 1959553 500 390 2 108 +359.68 +/- 32.92
141650 ncm-et-9 2020-12-23 20:59 01:16:14 1956639 500 401 2 97 +379.78 +/- 34.83
141649 ncm-et-15 2020-12-23 20:59 01:16:06 1972207 500 394 1 105 +368.59 +/- 33.35

Commit

Commit ID b06ef36ae5f23fa2d4188c9fe6d95c4f551ab035
Author Moez Jellouli
Date 2020-12-23 19:20:24 UTC
Correct Outflanking calculations in classical eval Take signed value of rank difference between kings squares instead absolute value in outflanking calculation. This change correct evaluation of endgames with one king invading opponent last ranks. Passed STC: LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 122240 W: 24326 L: 23896 D: 74018 Ptnml(0-2): 2101, 14139, 28236, 14517, 2127 https://tests.stockfishchess.org/tests/view/5fdfc33a3932f79192d394b8 Passed LTC: LLR: 2.97 (-2.94,2.94) {0.25,1.25} Total: 157416 W: 20870 L: 20292 D: 116254 Ptnml(0-2): 973, 13954, 48333, 14418, 1030 https://tests.stockfishchess.org/tests/view/5fe07a453932f79192d39502 closes https://github.com/official-stockfish/Stockfish/pull/3271 Bench: 4162769
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