Dev Builds » 20221008-1609

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 06:52:08 585027 4000 1144 905 1951 +20.78 ± 5.16 5 331 1089 570 5 +41.72 ± 10.26
ncm-dbt-02 06:51:36 587031 4000 1087 895 2018 +16.69 ± 5.19 8 349 1088 553 2 +34.51 ± 10.27
ncm-dbt-03 06:51:35 587484 4000 1135 944 1921 +16.6 ± 5.28 4 377 1047 568 4 +33.28 ± 10.51
ncm-dbt-04 06:50:04 572031 4000 1099 934 1967 +14.34 ± 5.19 7 360 1100 527 6 +28.9 ± 10.21
ncm-dbt-05 06:52:11 584411 4000 1190 945 1865 +21.31 ± 5.21 5 341 1060 592 2 +43.3 ± 10.43
20000 5655 4623 9722 +17.94 ± 2.33 29 1758 5384 2810 19 +36.33 ± 4.62

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
379211 ncm-dbt-02 588387 500 143 120 237 +15.99 ± 14.12 1 39 147 62 1 +32.05 ± 27.65 ↓
379210 ncm-dbt-05 585211 500 140 115 245 +17.39 ± 15.96 0 57 111 82 0 +34.86 ± 32.24 ↓
379209 ncm-dbt-01 584622 500 150 103 247 +32.75 ± 15.07 0 40 124 85 1 +64.66 ± 30.65 ↓
379208 ncm-dbt-04 568395 500 141 117 242 +16.69 ± 14.31 0 43 141 65 1 +32.05 ± 28.47 ↓
379207 ncm-dbt-03 586689 500 139 130 231 +6.25 ± 14.34 0 51 139 60 0 +12.51 ± 28.76 ↓
379206 ncm-dbt-02 585548 500 140 113 247 +18.78 ± 14.21 0 42 139 69 0 +37.67 ± 28.72 ↓
379205 ncm-dbt-05 586604 500 141 103 256 +26.46 ± 14.9 1 39 132 77 1 +53.22 ± 29.61 ↓
379204 ncm-dbt-01 585211 500 129 120 251 +6.26 ± 14.72 2 48 139 61 0 +15.3 ± 28.76 ↓
379203 ncm-dbt-04 572276 500 137 121 242 +11.12 ± 14.24 0 46 143 60 1 +20.87 ± 28.22 ↓
379202 ncm-dbt-03 589112 500 139 102 259 +25.76 ± 16.07 0 50 116 81 3 +47.55 ± 31.66 ↓
379201 ncm-dbt-02 587919 500 140 114 246 +18.08 ± 14.54 1 41 140 67 1 +36.26 ± 28.59 ↓
379200 ncm-dbt-05 584201 500 146 126 228 +13.9 ± 13.95 0 43 144 63 0 +27.85 ± 28.07 ↓
379199 ncm-dbt-04 571913 500 143 121 236 +15.3 ± 14.58 1 43 140 65 1 +30.65 ± 28.6 ↓
379198 ncm-dbt-03 586562 500 140 112 248 +19.48 ± 15.4 2 45 126 77 0 +41.89 ± 30.41 ↓
379197 ncm-dbt-01 586477 500 141 121 238 +13.9 ± 14.6 0 48 134 68 0 +27.85 ± 29.39 ↓
379196 ncm-dbt-04 572437 500 149 125 226 +16.69 ± 13.91 1 37 150 61 1 +33.46 ± 27.23 ↓
379195 ncm-dbt-05 581527 500 156 118 226 +26.46 ± 14.65 2 35 136 77 0 +56.07 ± 29.07 ↓
379194 ncm-dbt-02 586520 500 132 116 252 +11.12 ± 14.75 1 48 135 66 0 +23.66 ± 29.27 ↓
379193 ncm-dbt-03 587282 500 144 123 233 +14.6 ± 15.03 0 51 127 72 0 +29.25 ± 30.28 ↓
379192 ncm-dbt-01 586858 500 162 116 222 +32.05 ± 14.25 0 33 140 75 2 +61.79 ± 28.49 ↓
379191 ncm-dbt-04 574378 500 131 107 262 +16.69 ± 14.94 2 42 137 68 1 +34.86 ± 28.99 ↓
379190 ncm-dbt-02 584243 500 131 97 272 +23.66 ± 15.45 3 40 127 80 0 +51.8 ± 30.27 ↓
379189 ncm-dbt-05 583824 500 137 125 238 +8.34 ± 14.52 1 48 139 62 0 +18.08 ± 28.75 ↓
379188 ncm-dbt-01 581610 500 148 115 237 +22.96 ± 14.13 0 39 139 72 0 +46.13 ± 28.7 ↓
379187 ncm-dbt-03 587834 500 146 123 231 +15.99 ± 14.38 1 42 140 67 0 +33.46 ± 28.6 ↓
379186 ncm-dbt-04 574216 500 136 109 255 +18.78 ± 14.73 1 43 134 72 0 +39.08 ± 29.38 ↓
379185 ncm-dbt-02 587282 500 135 119 246 +11.12 ± 15.37 1 53 125 71 0 +23.66 ± 30.53 ↓
379184 ncm-dbt-05 582694 500 152 124 224 +19.48 ± 14.39 1 40 139 70 0 +40.48 ± 28.71 ↓
379183 ncm-dbt-01 583279 500 146 116 238 +20.87 ± 14.24 0 41 138 71 0 +41.89 ± 28.84 ↓
379182 ncm-dbt-03 588387 500 145 113 242 +22.27 ± 14.48 0 42 134 74 0 +44.72 ± 29.37 ↓
379181 ncm-dbt-04 573325 500 126 113 261 +9.04 ± 15.57 1 55 125 68 1 +18.08 ± 30.53 ↓
379180 ncm-dbt-02 587113 500 134 103 263 +21.57 ± 14.42 1 39 138 72 0 +44.72 ± 28.84 ↓
379179 ncm-dbt-03 587070 500 136 119 245 +11.82 ± 15.06 0 52 130 67 1 +22.27 ± 29.91 ↓
379178 ncm-dbt-05 587028 500 160 111 229 +34.16 ± 14.39 0 35 131 84 0 +68.99 ± 29.71 ↓
379177 ncm-dbt-01 584076 500 125 96 279 +20.18 ± 14.19 1 38 142 69 0 +41.89 ± 28.3 ↓
379176 ncm-dbt-04 569310 500 136 121 243 +10.43 ± 15.07 1 51 130 68 0 +22.27 ± 29.91 ↓
379175 ncm-dbt-02 589240 500 132 113 255 +13.21 ± 14.41 0 47 137 66 0 +26.46 ± 29.0 ↓
379174 ncm-dbt-05 584201 500 158 123 219 +24.36 ± 15.01 0 44 128 77 1 +47.55 ± 30.15 ↓
379173 ncm-dbt-03 586943 500 146 122 232 +16.69 ± 14.69 1 44 135 70 0 +34.86 ± 29.25 ↓
379172 ncm-dbt-01 588089 500 143 118 239 +17.39 ± 15.37 2 44 133 69 2 +34.86 ± 29.51 ↓

Commit

Commit ID e90341f9c9cd24e75aba2485b2ab1e445f4a5b70
Author Stefan Geschwentner
Date 2022-10-08 16:09:02 UTC
Tweak history initialization Simplify initialization of continuation history by using everywhere the same starting value. STC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 90952 W: 24312 L: 24153 D: 42487 Ptnml(0-2): 356, 10168, 24290, 10285, 377 https://tests.stockfishchess.org/tests/view/633948f235f43d649ff61fd0 LTC: LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 162416 W: 43540 L: 43466 D: 75410 Ptnml(0-2): 77, 16289, 48417, 16333, 92 https://tests.stockfishchess.org/tests/view/6339ee8a35f43d649ff63986 closes https://github.com/official-stockfish/Stockfish/pull/4186 Bench: 4156027
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