Dev Builds » 20201205-1548

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 08:24:23 1972021 3367 2670 21 676 +369.27 +/- 13.09
ncm-et-4 08:24:22 1966913 3352 2583 20 749 +349.95 +/- 12.42
ncm-et-9 08:23:17 1972058 3326 2609 13 704 +363.66 +/- 12.8
ncm-et-10 08:24:09 1959581 3314 2595 16 703 +361.62 +/- 12.82
ncm-et-13 08:24:07 1960969 3318 2632 21 665 +369.42 +/- 13.2
ncm-et-15 08:24:31 1969831 3323 2597 16 710 +360.3 +/- 12.76
20000 15686 107 4207 +362.27 +/- 5.24

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
141354 ncm-et-10 2020-12-06 18:07 00:48:06 1957707 314 250 0 64 +378.03 +/- 42.91
141353 ncm-et-15 2020-12-06 18:07 00:48:30 1964153 323 252 2 69 +357.93 +/- 41.44
141352 ncm-et-13 2020-12-06 18:07 00:48:28 1958622 318 250 3 65 +360.32 +/- 42.81
141351 ncm-et-9 2020-12-06 18:05 00:49:27 1976227 326 254 2 70 +357.08 +/- 41.13
141350 ncm-et-4 2020-12-06 18:03 00:52:40 1972821 352 259 2 91 +322.76 +/- 35.81
141349 ncm-et-3 2020-12-06 18:00 00:54:58 1978879 367 296 2 69 +382.75 +/- 41.51
141348 ncm-et-10 2020-12-06 16:50 01:16:00 1958626 500 390 3 107 +357.94 +/- 33.12
141347 ncm-et-15 2020-12-06 16:50 01:15:40 1974981 500 368 3 129 +322.67 +/- 30.01
141346 ncm-et-13 2020-12-06 16:48 01:17:20 1958932 500 404 1 95 +387.57 +/- 35.16
141345 ncm-et-9 2020-12-06 16:48 01:16:15 1969862 500 372 4 124 +327.18 +/- 30.68
141344 ncm-et-4 2020-12-06 16:47 01:14:29 1962306 500 386 2 112 +352.8 +/- 32.29
141343 ncm-et-3 2020-12-06 16:45 01:14:43 1973746 500 398 8 94 +363.2 +/- 35.43
141342 ncm-et-10 2020-12-06 15:34 01:14:42 1953892 500 386 3 111 +351.11 +/- 32.49
141341 ncm-et-15 2020-12-06 15:32 01:16:58 1966781 500 401 3 96 +377.87 +/- 35.05
141340 ncm-et-13 2020-12-06 15:32 01:15:35 1961843 500 393 1 106 +366.78 +/- 33.19
141339 ncm-et-9 2020-12-06 15:31 01:15:40 1966459 500 404 1 95 +387.57 +/- 35.16
141338 ncm-et-4 2020-12-06 15:30 01:15:49 1968945 500 400 4 96 +374.11 +/- 35.07
141337 ncm-et-3 2020-12-06 15:29 01:14:32 1972960 500 398 1 101 +375.98 +/- 34.04
141336 ncm-et-10 2020-12-06 14:16 01:17:35 1957709 500 403 5 92 +377.87 +/- 35.86
141335 ncm-et-13 2020-12-06 14:15 01:15:42 1958316 500 401 6 93 +372.25 +/- 35.66
141334 ncm-et-15 2020-12-06 14:15 01:16:20 1964920 500 400 0 100 +381.69 +/- 34.16
141333 ncm-et-4 2020-12-06 14:14 01:14:39 1968160 500 381 4 115 +341.24 +/- 31.92
141332 ncm-et-9 2020-12-06 14:13 01:16:33 1968003 500 395 1 104 +370.41 +/- 33.52
141331 ncm-et-3 2020-12-06 14:12 01:15:27 1971269 500 397 0 103 +375.98 +/- 33.63
141330 ncm-et-10 2020-12-06 12:59 01:15:51 1962512 500 391 2 107 +361.43 +/- 33.08
141329 ncm-et-13 2020-12-06 12:58 01:15:31 1962610 500 388 4 108 +352.8 +/- 32.99
141328 ncm-et-4 2020-12-06 12:58 01:15:14 1968481 500 392 3 105 +361.43 +/- 33.45
141327 ncm-et-9 2020-12-06 12:58 01:14:20 1974047 500 390 1 109 +361.43 +/- 32.7
141326 ncm-et-15 2020-12-06 12:57 01:16:08 1970951 500 400 2 98 +377.87 +/- 34.64
141325 ncm-et-3 2020-12-06 12:56 01:15:12 1969737 500 402 5 93 +375.98 +/- 35.66
141324 ncm-et-15 2020-12-06 11:42 01:14:32 1973752 500 388 3 109 +354.5 +/- 32.8
141323 ncm-et-9 2020-12-06 11:42 01:15:13 1975138 500 407 1 92 +393.6 +/- 35.75
141322 ncm-et-13 2020-12-06 11:41 01:15:51 1962917 500 399 1 100 +377.87 +/- 34.22
141321 ncm-et-10 2020-12-06 11:41 01:16:59 1959083 500 396 2 102 +370.41 +/- 33.92
141320 ncm-et-4 2020-12-06 11:41 01:16:31 1953789 500 379 2 119 +341.24 +/- 31.27
141319 ncm-et-3 2020-12-06 11:40 01:14:43 1970017 500 389 2 109 +357.94 +/- 32.76
141318 ncm-et-9 2020-12-06 10:25 01:15:49 1974670 500 387 3 110 +352.8 +/- 32.64
141317 ncm-et-10 2020-12-06 10:25 01:14:56 1967543 500 379 1 120 +342.85 +/- 31.08
141316 ncm-et-13 2020-12-06 10:25 01:15:40 1963545 500 397 5 98 +366.78 +/- 34.71
141315 ncm-et-3 2020-12-06 10:25 01:14:48 1967539 500 390 3 107 +357.94 +/- 33.12
141314 ncm-et-4 2020-12-06 10:24 01:15:00 1973893 500 386 3 111 +351.11 +/- 32.49
141313 ncm-et-15 2020-12-06 10:24 01:16:23 1973282 500 388 3 109 +354.5 +/- 32.8

Commit

Commit ID be7a03a957d5c2590a329f8f47acea8af2305adf
Author Vizvezdenec
Date 2020-12-05 15:48:33 UTC
Introduce static history The idea of this patch can be described as following: we update static history stats based on comparison of the static evaluations of the position before and after the move. If the move increases static evaluation it's assigned positive bonus, if it decreases static evaluation it's assigned negative bonus. These stats are used in movepicker to sort quiet moves. passed STC https://tests.stockfishchess.org/tests/view/5fca4c0842a050a89f02cd66 LLR: 3.00 (-2.94,2.94) {-0.25,1.25} Total: 78152 W: 7409 L: 7171 D: 63572 Ptnml(0-2): 303, 5695, 26873, 5871, 334 passed LTC https://tests.stockfishchess.org/tests/view/5fca6be442a050a89f02cd75 LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 40240 W: 1602 L: 1441 D: 37197 Ptnml(0-2): 19, 1306, 17305, 1475, 15 closes https://github.com/official-stockfish/Stockfish/pull/3253 bench 3845156
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