Dev Builds » 20220325-1914

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 15. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host Duration Avg Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo
ncm-dbt-01 06:52:05 584082 4000 936 995 2069 -5.13 ± 5.12 7 461 1117 414 1 -9.21 ± 10.12
ncm-dbt-02 06:54:23 587122 3998 995 1033 1970 -3.3 ± 5.22 5 470 1086 434 4 -6.43 ± 10.3
ncm-dbt-03 06:53:50 586671 4010 981 1077 1952 -8.32 ± 5.14 7 485 1111 401 1 -15.61 ± 10.16
ncm-dbt-04 06:52:38 569564 4000 994 1031 1975 -3.21 ± 5.03 6 436 1149 407 2 -5.73 ± 9.93
ncm-dbt-05 06:53:19 584608 3992 997 994 2001 +0.26 ± 4.89 2 402 1185 405 2 +0.52 ± 9.72
20000 4903 5130 9967 -3.94 ± 2.27 27 2254 5648 2061 10 -7.3 ± 4.49

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
399388 ncm-dbt-03 586689 10 3 3 4 -0.0 ± 99.06 0 1 3 1 0 -0.0 ± 217.03 ↓
399387 ncm-dbt-05 582110 492 131 121 240 +7.06 ± 13.4 0 42 152 52 0 +14.13 ± 26.88 ↓
399386 ncm-dbt-02 584874 498 124 126 248 -1.4 ± 14.74 1 53 145 47 3 -5.58 ± 27.95 ↓
399385 ncm-dbt-01 581402 500 112 113 275 -0.69 ± 15.48 1 62 124 63 0 -0.0 ± 30.65 ↓
399384 ncm-dbt-04 568474 500 125 141 234 -11.12 ± 14.5 1 62 139 48 0 -20.87 ± 28.75 ↓
399383 ncm-dbt-03 586477 500 126 125 249 +0.69 ± 13.96 0 52 145 53 0 +1.39 ± 27.97 ↓
399382 ncm-dbt-05 589112 500 125 129 246 -2.78 ± 12.78 0 46 162 42 0 -5.56 ± 25.6 ↓
399381 ncm-dbt-02 587792 500 135 125 240 +6.95 ± 15.28 0 58 124 68 0 +13.9 ± 30.66 ↓
399380 ncm-dbt-01 585000 500 126 122 252 +2.78 ± 14.29 0 53 140 57 0 +5.56 ± 28.63 ↓
399379 ncm-dbt-04 569390 500 112 127 261 -10.42 ± 14.31 1 60 142 47 0 -19.48 ± 28.36 ↓
399378 ncm-dbt-03 587537 500 118 140 242 -15.3 ± 13.38 1 57 155 37 0 -29.25 ± 26.54 ↓
399377 ncm-dbt-05 582903 500 135 133 232 +1.39 ± 13.9 1 48 149 52 0 +4.17 ± 27.43 ↓
399376 ncm-dbt-02 587877 500 125 130 245 -3.47 ± 14.99 0 63 129 58 0 -6.95 ± 30.04 ↓
399375 ncm-dbt-01 583656 500 134 120 246 +9.73 ± 13.58 0 43 150 57 0 +19.48 ± 27.27 ↓
399374 ncm-dbt-04 570308 500 122 123 255 -0.69 ± 14.1 1 51 146 52 0 -0.0 ± 27.84 ↓
399373 ncm-dbt-03 585674 500 117 140 243 -15.99 ± 14.51 1 66 138 45 0 -30.65 ± 28.87 ↓
399372 ncm-dbt-05 583196 500 120 134 246 -9.73 ± 13.86 0 59 146 45 0 -19.48 ± 27.82 ↓
399371 ncm-dbt-02 589454 500 126 128 246 -1.39 ± 14.16 1 52 145 52 0 -1.39 ± 27.97 ↓
399370 ncm-dbt-01 582861 500 116 121 263 -3.47 ± 14.35 0 58 139 53 0 -6.95 ± 28.76 ↓
399369 ncm-dbt-04 570669 500 115 126 259 -7.64 ± 14.97 2 59 138 50 1 -13.9 ± 28.89 ↓
399368 ncm-dbt-03 588132 500 121 137 242 -11.12 ± 14.37 1 61 141 47 0 -20.87 ± 28.49 ↓
399367 ncm-dbt-05 580406 500 130 110 260 +13.9 ± 14.08 0 44 142 64 0 +27.85 ± 28.34 ↓
399366 ncm-dbt-02 586943 500 128 128 244 0.0 ± 15.18 0 61 129 59 1 -1.39 ± 30.04 ↓
399365 ncm-dbt-01 586012 500 111 141 248 -20.87 ± 15.13 2 72 130 46 0 -39.08 ± 29.9 ↓
399364 ncm-dbt-03 587537 500 127 137 236 -6.95 ± 14.91 2 59 136 53 0 -11.12 ± 29.15 ↓
399363 ncm-dbt-04 565666 500 134 130 236 +2.78 ± 14.29 1 50 143 56 0 +6.95 ± 28.24 ↓
399362 ncm-dbt-05 585632 500 116 130 254 -9.73 ± 13.99 0 60 144 46 0 -19.48 ± 28.09 ↓
399361 ncm-dbt-01 580945 500 111 119 270 -5.56 ± 13.88 0 56 146 48 0 -11.12 ± 27.83 ↓
399360 ncm-dbt-02 585674 500 112 133 255 -14.6 ± 14.78 1 67 134 48 0 -27.85 ± 29.39 ↓
399359 ncm-dbt-03 586858 500 127 137 236 -6.95 ± 14.4 0 60 141 48 1 -15.3 ± 28.49 ↓
399358 ncm-dbt-04 570989 500 135 133 232 +1.39 ± 13.9 0 50 149 50 1 +1.39 ± 27.43 ↓
399357 ncm-dbt-01 586477 500 109 140 251 -21.57 ± 14.16 2 65 145 38 0 -40.48 ± 27.9 ↓
399356 ncm-dbt-05 588089 500 120 122 258 -1.39 ± 14.29 1 51 149 47 2 -4.17 ± 27.43 ↓
399355 ncm-dbt-02 585421 500 119 134 247 -10.42 ± 14.31 1 60 142 47 0 -19.48 ± 28.36 ↓
399354 ncm-dbt-03 585211 500 123 133 244 -6.95 ± 15.52 2 64 126 58 0 -11.12 ± 30.41 ↓
399353 ncm-dbt-04 570348 500 122 132 246 -6.95 ± 13.6 0 55 150 45 0 -13.9 ± 27.28 ↓
399352 ncm-dbt-01 586308 500 117 119 264 -1.39 ± 14.68 2 52 143 52 1 -1.39 ± 28.24 ↓
399351 ncm-dbt-05 585421 500 120 115 265 +3.47 ± 14.22 0 52 141 57 0 +6.95 ± 28.5 ↓
399350 ncm-dbt-04 570669 500 129 119 252 +6.95 ± 14.14 0 49 142 59 0 +13.9 ± 28.36 ↓
399349 ncm-dbt-03 585928 500 119 125 256 -4.17 ± 15.17 0 65 126 59 0 -8.34 ± 30.41 ↓
399348 ncm-dbt-02 588941 500 126 129 245 -2.08 ± 14.61 1 56 138 55 0 -2.78 ± 28.89 ↓

Commit

Commit ID 910cf8b21839eb9f1991934a5436eea112021723
Author Giacomo Lorenzetti
Date 2022-03-25 19:14:00 UTC
Remove pos.capture_or_promotion() This patch replaces `pos.capture_or_promotion()` with `pos.capture()` and comes after a few attempts with elo-gaining bounds, two of which failed yellow at LTC (https://tests.stockfishchess.org/tests/view/622f8f0cc9e950cbfc237024 and https://tests.stockfishchess.org/tests/view/62319a8bb3b498ba71a6b2dc). Passed non-regression STC: https://tests.stockfishchess.org/tests/view/623aff7eea447151c74828d3 LLR: 2.94 (-2.94,2.94) <-2.25,0.25> Total: 246864 W: 65462 L: 65618 D: 115784 Ptnml(0-2): 1201, 28116, 65001, 27866, 1248 Passed non-regression LTC: https://tests.stockfishchess.org/tests/view/623c1fdcea447151c7484fb0 LLR: 2.94 (-2.94,2.94) <-2.25,0.25> Total: 30120 W: 8125 L: 7978 D: 14017 Ptnml(0-2): 22, 2993, 8881, 3144, 20 closes https://github.com/official-stockfish/Stockfish/pull/3968 Bench: 6847732
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