Dev Builds » 20230507-2032

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 06:55:35 584590 4000 1277 790 1933 +42.51 ± 5.2 4 253 999 740 4 +86.33 ± 10.76
ncm-dbt-02 06:57:09 586121 3992 1240 790 1962 +39.33 ± 5.05 2 240 1067 680 7 +78.78 ± 10.35
ncm-dbt-03 06:56:17 584433 4008 1256 796 1956 +40.05 ± 5.06 1 246 1054 698 5 +80.47 ± 10.43
ncm-dbt-04 06:55:58 568938 4000 1284 781 1935 +43.92 ± 5.2 3 253 984 758 2 +89.48 ± 10.84
ncm-dbt-05 06:55:51 579197 4000 1267 784 1949 +42.16 ± 5.11 1 246 1027 721 5 +84.86 ± 10.59
20000 6324 3941 9735 +41.59 ± 2.29 11 1238 5131 3597 23 +83.97 ± 4.74

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
427714 ncm-dbt-03 584285 8 2 2 4 -0.0 ± 125.78 0 1 2 1 0 -0.0 ± 296.58 ↓
427713 ncm-dbt-02 585717 492 156 94 242 +44.01 ± 15.05 0 32 122 90 2 +86.48 ± 30.88 ↓
427712 ncm-dbt-05 579001 500 165 103 232 +43.3 ± 15.08 0 33 125 89 3 +83.57 ± 30.49 ↓
427711 ncm-dbt-04 566651 500 166 108 226 +40.48 ± 14.91 0 34 126 88 2 +79.17 ± 30.36 ↓
427710 ncm-dbt-01 583489 500 156 97 247 +41.19 ± 14.95 0 35 122 92 1 +82.1 ± 30.9 ↓
427709 ncm-dbt-03 585548 500 169 96 235 +51.09 ± 14.04 0 24 130 95 1 +102.97 ± 29.68 ↓
427708 ncm-dbt-02 586901 500 151 98 251 +36.97 ± 14.31 0 33 131 86 0 +74.79 ± 29.69 ↓
427707 ncm-dbt-04 571190 500 161 97 242 +44.72 ± 15.03 1 32 119 98 0 +92.46 ± 31.31 ↓
427706 ncm-dbt-05 582193 500 157 95 248 +43.31 ± 14.29 1 27 131 91 0 +89.48 ± 29.62 ↓
427705 ncm-dbt-01 586774 500 152 98 250 +37.67 ± 15.0 2 30 132 84 2 +76.25 ± 29.54 ↓
427704 ncm-dbt-03 585084 500 160 100 240 +41.89 ± 14.34 0 30 131 88 1 +83.57 ± 29.65 ↓
427703 ncm-dbt-04 569829 500 163 105 232 +40.48 ± 13.71 0 27 138 85 0 +82.1 ± 28.65 ↓
427702 ncm-dbt-02 584579 500 153 96 251 +39.78 ± 14.08 0 28 139 81 2 +77.71 ± 28.54 ↓
427701 ncm-dbt-05 577069 500 164 91 245 +51.09 ± 15.23 0 32 115 101 2 +101.46 ± 31.86 ↓
427700 ncm-dbt-01 586816 500 154 93 253 +42.6 ± 14.25 1 27 132 90 0 +88.0 ± 29.49 ↓
427699 ncm-dbt-03 582068 500 141 79 280 +43.3 ± 14.02 0 28 132 90 0 +88.0 ± 29.49 ↓
427698 ncm-dbt-04 568673 500 159 95 246 +44.72 ± 14.64 1 29 125 95 0 +92.46 ± 30.47 ↓
427697 ncm-dbt-02 585337 500 153 120 227 +22.96 ± 13.87 0 36 146 67 1 +44.72 ± 27.74 ↓
427696 ncm-dbt-01 581985 500 171 103 226 +47.55 ± 14.13 1 24 131 94 0 +98.44 ± 29.57 ↓
427695 ncm-dbt-05 575394 500 155 110 235 +31.35 ± 14.47 0 37 131 82 0 +63.23 ± 29.72 ↓
427694 ncm-dbt-03 581610 500 152 102 246 +34.86 ± 14.04 0 32 136 82 0 +70.44 ± 29.01 ↓
427693 ncm-dbt-04 571351 500 155 100 245 +38.37 ± 14.92 0 37 121 92 0 +77.71 ± 31.04 ↓
427692 ncm-dbt-02 584076 500 156 99 245 +39.78 ± 14.48 0 33 127 90 0 +80.63 ± 30.22 ↓
427691 ncm-dbt-01 585506 500 167 98 235 +48.25 ± 14.3 0 27 128 94 1 +96.94 ± 30.02 ↓
427690 ncm-dbt-05 579578 500 165 91 244 +51.8 ± 13.94 0 24 128 98 0 +106.01 ± 29.96 ↓
427689 ncm-dbt-03 584748 500 153 104 243 +34.16 ± 14.91 0 37 129 82 2 +66.1 ± 29.99 ↓
427688 ncm-dbt-02 587325 500 160 94 246 +46.13 ± 14.05 0 27 130 93 0 +93.95 ± 29.74 ↓
427687 ncm-dbt-04 567482 500 154 84 262 +48.96 ± 14.47 0 29 122 99 0 +99.95 ± 30.87 ↓
427686 ncm-dbt-01 582318 500 148 108 244 +27.85 ± 15.0 0 43 124 83 0 +56.07 ± 30.66 ↓
427685 ncm-dbt-05 580157 500 158 103 239 +38.37 ± 14.26 0 32 131 87 0 +77.71 ± 29.68 ↓
427684 ncm-dbt-03 585337 500 160 103 237 +39.78 ± 14.87 0 36 121 93 0 +80.63 ± 31.04 ↓
427683 ncm-dbt-04 566060 500 161 94 245 +46.84 ± 15.39 1 34 112 103 0 +96.94 ± 32.27 ↓
427682 ncm-dbt-05 580240 500 162 92 246 +48.96 ± 13.93 0 25 130 95 0 +99.95 ± 29.7 ↓
427681 ncm-dbt-02 586731 500 173 94 233 +55.36 ± 13.84 1 18 133 97 1 +113.68 ± 29.12 ↓
427680 ncm-dbt-01 583992 500 166 86 248 +56.07 ± 14.96 0 30 110 110 0 +115.23 ± 32.58 ↓
427679 ncm-dbt-03 585928 500 165 102 233 +44.01 ± 14.6 1 28 129 91 1 +89.48 ± 29.91 ↓
427678 ncm-dbt-04 570268 500 165 98 237 +46.84 ± 14.62 0 31 121 98 0 +95.44 ± 31.02 ↓
427677 ncm-dbt-03 585295 500 154 108 238 +32.05 ± 13.57 0 30 144 76 0 +64.66 ± 27.91 ↓
427676 ncm-dbt-05 579951 500 141 99 260 +29.25 ± 14.19 0 36 136 78 0 +58.93 ± 29.06 ↓
427675 ncm-dbt-01 585843 500 163 107 230 +39.08 ± 14.96 0 37 120 93 0 +79.17 ± 31.18 ↓
427674 ncm-dbt-02 588302 500 138 95 267 +29.95 ± 14.37 1 33 139 76 1 +60.36 ± 28.64 ↓

Commit

Commit ID 464ebdf127273db0ccb0084c881b255b880e922e
Author Michael Chaly
Date 2023-05-07 20:32:21 UTC
Small cleanup In search remove one condition check and reorder conditions. Removes some code. Passed non-regression test: https://tests.stockfishchess.org/tests/view/64548fa06206ee34ebf853ad LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 282976 W: 75327 L: 75374 D: 132275 Ptnml(0-2): 604, 29673, 80995, 29598, 618 closes https://github.com/official-stockfish/Stockfish/pull/4557 No functional change
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