Dev Builds » 20221212-0715

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 06:59:51 584129 4000 1185 912 1903 +23.75 ± 5.06 4 303 1113 576 4 +47.72 ± 10.12
ncm-dbt-02 06:59:29 586828 4000 1123 898 1979 +19.56 ± 5.13 8 323 1110 554 5 +39.78 ± 10.14
ncm-dbt-03 06:59:40 584387 4000 1115 888 1997 +19.74 ± 5.08 3 326 1119 545 7 +38.9 ± 10.09
ncm-dbt-04 07:00:10 568991 4012 1147 915 1950 +20.11 ± 5.04 4 321 1122 557 2 +40.71 ± 10.08
ncm-dbt-05 07:01:13 579208 3988 1174 907 1907 +23.3 ± 5.13 6 307 1102 572 7 +46.63 ± 10.18
20000 5744 4520 9736 +21.29 ± 2.28 25 1580 5566 2804 25 +42.74 ± 4.53

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
431167 ncm-dbt-04 570108 12 4 5 3 -29.01 ± 98.94 0 2 3 1 0 -58.45 ± 226.57 ↓
431166 ncm-dbt-05 576823 488 145 113 230 +22.82 ± 14.83 0 42 128 74 0 +45.83 ± 30.1 ↓
431165 ncm-dbt-01 583489 500 155 121 224 +23.66 ± 13.78 0 36 144 70 0 +47.55 ± 28.01 ↓
431164 ncm-dbt-02 587537 500 147 131 222 +11.12 ± 14.37 1 43 147 57 2 +20.87 ± 27.68 ↓
431163 ncm-dbt-03 585548 500 140 110 250 +20.87 ± 15.38 1 43 135 67 4 +37.67 ± 29.25 ↓
431162 ncm-dbt-04 569350 500 152 115 233 +25.76 ± 13.81 0 35 143 72 0 +51.8 ± 28.13 ↓
431161 ncm-dbt-05 581735 500 148 130 222 +12.51 ± 14.61 2 42 143 62 1 +26.46 ± 28.21 ↓
431160 ncm-dbt-02 587155 500 148 112 240 +25.06 ± 15.06 1 41 130 77 1 +50.38 ± 29.88 ↓
431159 ncm-dbt-03 582360 500 151 124 225 +18.78 ± 14.08 0 40 144 65 1 +36.26 ± 28.05 ↓
431158 ncm-dbt-01 579248 500 147 117 236 +20.87 ± 14.5 1 39 140 69 1 +41.89 ± 28.57 ↓
431157 ncm-dbt-04 570388 500 129 115 256 +9.73 ± 14.89 1 50 133 66 0 +20.87 ± 29.53 ↓
431156 ncm-dbt-05 575191 500 147 118 235 +20.17 ± 14.19 1 37 145 66 1 +40.48 ± 27.9 ↓
431155 ncm-dbt-02 585126 500 137 107 256 +20.87 ± 15.38 1 47 123 79 0 +43.3 ± 30.78 ↓
431154 ncm-dbt-03 584285 500 142 113 245 +20.17 ± 14.32 0 42 137 71 0 +40.48 ± 28.98 ↓
431153 ncm-dbt-01 584958 500 154 123 223 +21.57 ± 13.34 0 33 154 62 1 +41.89 ± 26.62 ↓
431152 ncm-dbt-04 570949 500 145 112 243 +22.96 ± 13.59 0 34 150 65 1 +44.72 ± 27.18 ↓
431151 ncm-dbt-02 587749 500 132 103 265 +20.17 ± 14.32 2 35 146 66 1 +41.89 ± 27.75 ↓
431150 ncm-dbt-05 583363 500 143 110 247 +22.96 ± 14.4 1 37 141 70 1 +46.13 ± 28.42 ↓
431149 ncm-dbt-01 585759 500 140 99 261 +28.56 ± 14.67 1 37 132 80 0 +58.93 ± 29.6 ↓
431148 ncm-dbt-03 585169 500 122 102 276 +13.9 ± 14.73 0 49 132 69 0 +27.85 ± 29.65 ↓
431147 ncm-dbt-04 565469 500 132 110 258 +15.3 ± 14.06 1 40 145 64 0 +32.05 ± 27.93 ↓
431146 ncm-dbt-02 584622 500 138 114 248 +16.69 ± 13.91 1 38 147 64 0 +34.86 ± 27.64 ↓
431145 ncm-dbt-05 575639 500 144 103 253 +28.56 ± 14.41 1 35 136 78 0 +58.93 ± 29.06 ↓
431144 ncm-dbt-01 583992 500 153 111 236 +29.25 ± 14.06 1 31 144 73 1 +58.93 ± 27.95 ↓
431143 ncm-dbt-03 585253 500 137 111 252 +18.08 ± 14.29 0 43 138 69 0 +36.26 ± 28.86 ↓
431142 ncm-dbt-04 569709 500 148 110 242 +26.45 ± 13.99 0 35 143 71 1 +51.8 ± 28.13 ↓
431141 ncm-dbt-02 587282 500 132 109 259 +15.99 ± 14.12 1 40 144 65 0 +33.46 ± 28.06 ↓
431140 ncm-dbt-05 577684 500 145 111 244 +23.66 ± 15.45 0 47 124 77 2 +44.72 ± 30.66 ↓
431139 ncm-dbt-01 585126 500 148 127 225 +14.6 ± 14.65 1 45 136 68 0 +30.65 ± 29.13 ↓
431138 ncm-dbt-04 568434 500 150 126 224 +16.69 ± 14.82 1 45 133 71 0 +34.86 ± 29.51 ↓
431137 ncm-dbt-03 583154 500 133 115 252 +12.51 ± 14.09 1 42 145 62 0 +26.46 ± 27.94 ↓
431136 ncm-dbt-02 587155 500 143 103 254 +27.85 ± 13.96 0 35 140 75 0 +56.07 ± 28.52 ↓
431135 ncm-dbt-04 567640 500 145 114 241 +21.57 ± 14.55 1 40 136 73 0 +44.72 ± 29.1 ↓
431134 ncm-dbt-05 579496 500 152 106 242 +32.05 ± 13.98 0 32 141 76 1 +63.23 ± 28.35 ↓
431133 ncm-dbt-01 584537 500 138 110 252 +19.48 ± 15.28 0 49 125 75 1 +37.67 ± 30.53 ↓
431132 ncm-dbt-03 584117 500 142 107 251 +24.36 ± 14.63 1 39 134 76 0 +50.38 ± 29.35 ↓
431131 ncm-dbt-02 588004 500 146 119 235 +18.78 ± 14.98 1 44 133 71 1 +37.67 ± 29.51 ↓
431130 ncm-dbt-04 568872 500 142 108 250 +23.66 ± 14.32 0 40 136 74 0 +47.55 ± 29.1 ↓
431129 ncm-dbt-01 585928 500 150 104 246 +32.05 ± 13.98 0 33 138 79 0 +64.66 ± 28.76 ↓
431128 ncm-dbt-03 585211 500 148 106 246 +29.25 ± 13.37 0 28 154 66 2 +56.07 ± 26.52 ↓
431127 ncm-dbt-05 583740 500 150 116 234 +23.66 ± 14.19 1 35 144 69 1 +47.55 ± 28.01 ↓

Commit

Commit ID 310928e985a6d87bdd73542e2109f93c31e2cc41
Author mstembera
Date 2022-12-12 07:15:19 UTC
Avoid truncated PV in the threaded case strongly prefer to pick as bestThread those threads with a longer PV, among those threads that all found the same bestmove. extended discussion in #4244 closes https://github.com/official-stockfish/Stockfish/pull/4278 No functional change
Copyright 2011–2025 Next Chess Move LLC
Feedback & Support Terms of Service Privacy Policy Desktop Version