Dev Builds » 20220422-0617

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 06:55:59 584478 3994 1005 998 1991 +0.61 ± 5.25 2 459 1072 458 6 +0.52 ± 10.37
ncm-dbt-02 06:55:44 587981 4000 1033 958 2009 +6.52 ± 5.03 3 390 1137 469 1 +13.38 ± 10.0
ncm-dbt-03 06:56:13 588161 4000 1051 978 1971 +6.34 ± 5.01 0 395 1139 464 2 +12.34 ± 9.99
ncm-dbt-04 06:56:03 570029 4014 1033 1013 1968 +1.73 ± 5.15 3 439 1102 461 2 +3.64 ± 10.21
ncm-dbt-05 06:57:17 584604 3992 1024 974 1994 +4.35 ± 5.06 4 401 1135 453 3 +8.88 ± 10.01
20000 5146 4921 9933 +3.91 ± 2.28 12 2084 5585 2305 14 +7.75 ± 4.52

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
399302 ncm-dbt-04 571351 14 6 6 2 0.0 ± 4.86 0 0 7 0 0 0.0 ± 4.35 ↓
399301 ncm-dbt-05 581070 492 133 124 235 +6.36 ± 14.96 0 54 129 63 0 +12.72 ± 30.01 ↓
399300 ncm-dbt-01 583992 494 130 123 241 +4.92 ± 15.41 0 57 128 60 2 +7.03 ± 30.15 ↓
399299 ncm-dbt-03 590653 500 129 103 268 +18.08 ± 14.15 0 42 140 68 0 +36.26 ± 28.59 ↓
399298 ncm-dbt-02 586901 500 119 126 255 -4.86 ± 14.6 2 55 141 52 0 -6.95 ± 28.5 ↓
399297 ncm-dbt-04 569709 500 139 118 243 +14.6 ± 14.4 0 46 137 67 0 +29.25 ± 29.0 ↓
399296 ncm-dbt-01 584706 500 127 132 241 -3.47 ± 14.61 0 60 135 55 0 -6.95 ± 29.28 ↓
399295 ncm-dbt-05 588302 500 129 115 256 +9.73 ± 14.38 0 49 138 63 0 +19.48 ± 28.88 ↓
399294 ncm-dbt-03 587792 500 139 142 219 -2.08 ± 13.69 0 52 149 49 0 -4.17 ± 27.43 ↓
399293 ncm-dbt-02 585506 500 130 120 250 +6.95 ± 15.16 0 57 126 67 0 +13.9 ± 30.41 ↓
399292 ncm-dbt-04 570509 500 120 130 250 -6.95 ± 13.74 1 53 151 45 0 -12.51 ± 27.15 ↓
399291 ncm-dbt-01 585211 500 134 126 240 +5.56 ± 14.66 1 50 140 58 1 +11.12 ± 28.63 ↓
399290 ncm-dbt-05 586943 500 122 123 255 -0.7 ± 13.69 0 50 152 47 1 -2.78 ± 27.02 ↓
399289 ncm-dbt-03 589112 500 131 124 245 +4.86 ± 14.22 0 51 141 58 0 +9.73 ± 28.5 ↓
399288 ncm-dbt-02 589155 500 127 115 258 +8.34 ± 13.73 0 45 148 57 0 +16.69 ± 27.55 ↓
399287 ncm-dbt-04 571150 500 117 115 268 +1.39 ± 14.68 0 57 134 59 0 +2.78 ± 29.41 ↓
399286 ncm-dbt-01 583070 500 122 125 253 -2.09 ± 15.11 0 61 133 54 2 -6.95 ± 29.53 ↓
399285 ncm-dbt-03 586308 500 134 124 242 +6.95 ± 14.14 0 48 145 56 1 +12.51 ± 27.96 ↓
399284 ncm-dbt-05 581735 500 130 124 246 +4.17 ± 13.62 1 44 153 52 0 +9.73 ± 26.87 ↓
399283 ncm-dbt-02 589326 500 136 120 244 +11.12 ± 13.71 0 43 148 59 0 +22.27 ± 27.54 ↓
399282 ncm-dbt-04 569111 500 135 132 233 +2.08 ± 14.74 1 53 139 56 1 +4.17 ± 28.76 ↓
399281 ncm-dbt-01 586054 500 137 123 240 +9.73 ± 15.02 0 54 128 68 0 +19.48 ± 30.16 ↓
399280 ncm-dbt-03 587197 500 123 123 254 -0.0 ± 13.9 0 52 146 52 0 -0.0 ± 27.84 ↓
399279 ncm-dbt-05 585801 500 127 127 246 0.0 ± 14.29 2 49 146 53 0 +2.78 ± 27.84 ↓
399278 ncm-dbt-02 586477 500 129 117 254 +8.34 ± 14.26 0 49 140 61 0 +16.69 ± 28.62 ↓
399277 ncm-dbt-04 570228 500 124 124 252 0.0 ± 15.42 1 61 125 63 0 +1.39 ± 30.53 ↓
399276 ncm-dbt-05 583740 500 131 129 240 +1.39 ± 15.17 1 57 132 59 1 +2.78 ± 29.66 ↓
399275 ncm-dbt-01 582402 500 118 129 253 -7.64 ± 14.07 1 56 146 47 0 -13.9 ± 27.83 ↓
399274 ncm-dbt-02 588600 500 125 121 254 +2.78 ± 14.03 0 51 144 55 0 +5.56 ± 28.1 ↓
399273 ncm-dbt-03 589454 500 130 109 261 +14.6 ± 14.65 0 48 133 69 0 +29.25 ± 29.52 ↓
399272 ncm-dbt-04 571150 500 128 122 250 +4.17 ± 14.54 0 54 136 60 0 +8.34 ± 29.15 ↓
399271 ncm-dbt-01 583028 500 126 122 252 +2.78 ± 14.42 0 54 138 58 0 +5.56 ± 28.89 ↓
399270 ncm-dbt-03 587494 500 133 133 234 -0.0 ± 14.29 0 55 140 55 0 -0.0 ± 28.63 ↓
399269 ncm-dbt-05 588132 500 127 113 260 +9.73 ± 13.85 0 44 149 56 1 +18.08 ± 27.41 ↓
399268 ncm-dbt-02 588899 500 129 116 255 +9.04 ± 14.58 0 51 135 64 0 +18.08 ± 29.27 ↓
399267 ncm-dbt-04 571351 500 139 137 224 +1.39 ± 14.8 0 57 135 57 1 +1.39 ± 29.28 ↓
399266 ncm-dbt-01 587367 500 111 118 271 -4.87 ± 15.47 0 67 124 58 1 -11.12 ± 30.65 ↓
399265 ncm-dbt-02 588984 500 138 123 239 +10.43 ± 13.65 1 39 155 54 1 +20.87 ± 26.57 ↓
399264 ncm-dbt-03 587282 500 132 120 248 +8.34 ± 14.13 0 47 145 57 1 +15.3 ± 27.96 ↓
399263 ncm-dbt-04 565705 500 125 129 246 -2.78 ± 14.42 0 58 138 54 0 -5.56 ± 28.89 ↓
399262 ncm-dbt-05 581111 500 125 119 256 +4.17 ± 14.54 0 54 136 60 0 +8.34 ± 29.15 ↓

Commit

Commit ID e1f12aa4e61a8bbb772918c405137acdd85e3eec
Author candirufish
Date 2022-04-22 06:17:22 UTC
Negative extension for ttMove that is less than alpha and value in the context of singular extensions Passed STC: https://tests.stockfishchess.org/tests/view/626047e8b03f22647441ade0 LLR: 2.97 (-2.94,2.94) <0.00,2.50> Total: 50296 W: 13410 L: 13108 D: 23778 Ptnml(0-2): 196, 5548, 13370, 5826, 208 Passed LTC: https://tests.stockfishchess.org/tests/view/6260a513b03f22647441b970 LLR: 2.96 (-2.94,2.94) <0.50,3.00> Total: 83896 W: 22433 L: 22054 D: 39409 Ptnml(0-2): 49, 8273, 24938, 8626, 62 closes https://github.com/official-stockfish/Stockfish/pull/3995 bench: 7729968
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