Dev Builds » 20210113-2159

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 08:21:20 1970827 3345 2660 10 675 +374.32 +/- 13.08
ncm-et-4 08:21:02 1970801 3357 2651 16 690 +367.61 +/- 12.95
ncm-et-9 08:21:37 1967860 3336 2663 19 654 +374.64 +/- 13.31
ncm-et-10 08:21:26 1959078 3317 2616 19 682 +365.82 +/- 13.03
ncm-et-13 08:20:41 1958389 3313 2645 18 650 +374.98 +/- 13.35
ncm-et-15 08:20:53 1967068 3332 2640 13 679 +370.79 +/- 13.05
20000 15875 95 4030 +371.33 +/- 5.35

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
142410 ncm-et-10 2021-01-14 08:19 00:47:28 1958166 317 254 2 61 +376.88 +/- 44.23
142409 ncm-et-13 2021-01-14 08:19 00:47:35 1959695 313 248 0 65 +374.41 +/- 42.55
142408 ncm-et-15 2021-01-14 08:17 00:49:42 1968166 332 259 0 73 +363.3 +/- 40.04
142407 ncm-et-9 2021-01-14 08:16 00:50:31 1965842 336 258 2 76 +347.69 +/- 39.39
142406 ncm-et-3 2021-01-14 08:14 00:52:24 1963533 345 283 0 62 +402.22 +/- 43.72
142405 ncm-et-4 2021-01-14 08:12 00:54:02 1965228 357 291 2 64 +391.09 +/- 43.17
142404 ncm-et-13 2021-01-14 07:04 01:14:04 1965379 500 402 0 98 +385.59 +/- 34.52
142403 ncm-et-10 2021-01-14 07:02 01:16:19 1962630 500 406 1 93 +391.57 +/- 35.55
142402 ncm-et-15 2021-01-14 07:00 01:15:43 1966770 500 391 0 109 +364.98 +/- 32.64
142401 ncm-et-9 2021-01-14 06:59 01:15:32 1967238 500 396 2 102 +370.41 +/- 33.92
142400 ncm-et-3 2021-01-14 06:58 01:14:29 1972650 500 391 1 108 +363.2 +/- 32.86
142399 ncm-et-4 2021-01-14 06:56 01:14:37 1965844 500 399 5 96 +370.41 +/- 35.09
142398 ncm-et-13 2021-01-14 05:47 01:16:10 1961076 500 405 4 91 +383.64 +/- 36.06
142397 ncm-et-15 2021-01-14 05:44 01:14:28 1970949 500 405 1 94 +389.56 +/- 35.35
142396 ncm-et-10 2021-01-14 05:44 01:16:35 1956961 500 385 1 114 +352.8 +/- 31.94
142395 ncm-et-9 2021-01-14 05:44 01:14:21 1974669 500 405 3 92 +385.59 +/- 35.84
142394 ncm-et-3 2021-01-14 05:42 01:15:04 1974054 500 392 2 106 +363.2 +/- 33.24
142393 ncm-et-4 2021-01-14 05:41 01:14:36 1974213 500 406 1 93 +391.57 +/- 35.55
142392 ncm-et-13 2021-01-14 04:29 01:16:31 1964764 500 402 5 93 +375.98 +/- 35.66
142391 ncm-et-10 2021-01-14 04:28 01:14:34 1963393 500 398 4 98 +370.41 +/- 34.7
142390 ncm-et-15 2021-01-14 04:28 01:15:14 1967547 500 399 3 98 +374.11 +/- 34.68
142389 ncm-et-9 2021-01-14 04:28 01:15:14 1971737 500 399 2 99 +375.98 +/- 34.46
142388 ncm-et-3 2021-01-14 04:26 01:14:54 1972822 500 391 2 107 +361.43 +/- 33.08
142387 ncm-et-4 2021-01-14 04:25 01:14:47 1974841 500 383 1 116 +349.43 +/- 31.64
142386 ncm-et-13 2021-01-14 03:13 01:15:14 1962763 500 396 0 104 +374.11 +/- 33.46
142385 ncm-et-15 2021-01-14 03:12 01:14:36 1966315 500 390 2 108 +359.68 +/- 32.92
142384 ncm-et-9 2021-01-14 03:11 01:15:35 1965379 500 410 1 89 +399.81 +/- 36.38
142383 ncm-et-10 2021-01-14 03:11 01:16:39 1957552 500 390 5 105 +354.5 +/- 33.5
142382 ncm-et-3 2021-01-14 03:10 01:15:29 1971117 500 405 1 94 +389.56 +/- 35.35
142381 ncm-et-4 2021-01-14 03:09 01:14:41 1972031 500 388 3 109 +354.5 +/- 32.8
142380 ncm-et-15 2021-01-14 01:56 01:15:05 1970035 500 393 4 103 +361.43 +/- 33.81
142379 ncm-et-10 2021-01-14 01:56 01:13:48 1962781 500 381 2 117 +344.48 +/- 31.55
142378 ncm-et-13 2021-01-14 01:55 01:16:11 1934590 500 403 6 91 +375.98 +/- 36.06
142377 ncm-et-9 2021-01-14 01:55 01:15:07 1961689 500 399 7 94 +366.78 +/- 35.45
142376 ncm-et-4 2021-01-14 01:54 01:13:57 1968163 500 391 4 105 +357.94 +/- 33.48
142375 ncm-et-3 2021-01-14 01:54 01:15:00 1971887 500 404 3 93 +383.64 +/- 35.64
142374 ncm-et-13 2021-01-14 00:39 01:14:56 1960461 500 389 3 108 +356.21 +/- 32.96
142373 ncm-et-15 2021-01-14 00:39 01:16:05 1959695 500 403 3 94 +381.7 +/- 35.44
142372 ncm-et-4 2021-01-14 00:39 01:14:22 1975292 500 393 0 107 +368.58 +/- 32.96
142371 ncm-et-3 2021-01-14 00:39 01:14:00 1969727 500 394 1 105 +368.59 +/- 33.35
142370 ncm-et-10 2021-01-14 00:39 01:16:03 1952066 500 402 4 94 +377.87 +/- 35.46
142369 ncm-et-9 2021-01-14 00:38 01:15:17 1968469 500 396 2 102 +370.41 +/- 33.92

Commit

Commit ID 6dddcecb09df268d93810a1a38deb116f97672af
Author Tomasz Sobczyk
Date 2021-01-13 21:59:54 UTC
Optimize generate_moves This change simplifies control flow in the generate_moves function which ensures the compiler doesn't duplicate work due to possibly not resolving pureness of the function calls. Also the biggest change is the removal of the unnecessary condition checking for empty b in a convoluted way. The rationale for removal of this condition is that computing attacks_bb with occupancy is not much more costly than computing pseudo attacks and overall the condition (also being likely unpredictable) is a pessimisation. This is inspired by previous changes by @BM123499. Passed STC: LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 88040 W: 8172 L: 7931 D: 71937 Ptnml(0-2): 285, 6128, 30957, 6361, 289 https://tests.stockfishchess.org/tests/view/5ffc28386019e097de3ef1c7 closes https://github.com/official-stockfish/Stockfish/pull/3300 No functional change.
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