Dev Builds » 20230202-1645

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 07:00:08 582435 4000 1222 803 1975 +36.53 ± 5.1 3 259 1059 674 5 +73.52 ± 10.41
ncm-dbt-02 06:59:24 586185 4000 1188 844 1968 +29.95 ± 5.08 5 277 1092 621 5 +60.36 ± 10.23
ncm-dbt-03 06:59:39 586109 4000 1213 820 1967 +34.25 ± 5.15 5 267 1066 654 8 +68.63 ± 10.37
ncm-dbt-04 07:00:47 569296 4000 1251 817 1932 +37.85 ± 5.02 1 252 1059 688 0 +76.79 ± 10.4
ncm-dbt-05 07:00:41 584209 4000 1211 806 1983 +35.3 ± 5.09 0 274 1050 673 3 +70.8 ± 10.46
20000 6085 4090 9825 +34.77 ± 2.28 14 1329 5326 3310 21 +70.0 ± 4.64

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
412221 ncm-dbt-05 579620 500 132 93 275 +27.15 ± 14.57 0 40 131 79 0 +54.65 ± 29.74 ↓
412220 ncm-dbt-04 569709 500 156 98 246 +40.48 ± 14.12 0 30 132 88 0 +82.1 ± 29.52 ↓
412219 ncm-dbt-01 584117 500 159 87 254 +50.38 ± 13.86 0 24 130 96 0 +102.97 ± 29.68 ↓
412218 ncm-dbt-03 584411 500 145 114 241 +21.57 ± 15.31 0 47 127 74 2 +40.48 ± 30.28 ↓
412217 ncm-dbt-02 586054 500 150 106 244 +30.65 ± 13.75 1 29 145 75 0 +63.23 ± 27.78 ↓
412216 ncm-dbt-05 584622 500 158 115 227 +29.95 ± 14.89 0 41 125 84 0 +60.36 ± 30.52 ↓
412215 ncm-dbt-01 580945 500 157 93 250 +44.72 ± 14.64 0 32 122 96 0 +90.97 ± 30.89 ↓
412214 ncm-dbt-04 569190 500 154 102 244 +36.27 ± 15.04 1 36 123 90 0 +74.79 ± 30.78 ↓
412213 ncm-dbt-03 586139 500 144 95 261 +34.16 ± 14.39 1 32 134 83 0 +70.44 ± 29.29 ↓
412212 ncm-dbt-02 582652 500 133 107 260 +18.08 ± 13.2 0 35 154 61 0 +36.26 ± 26.65 ↓
412211 ncm-dbt-05 583070 500 154 101 245 +36.97 ± 13.63 0 28 141 81 0 +74.79 ± 28.27 ↓
412210 ncm-dbt-01 582193 500 140 100 260 +27.85 ± 13.41 0 31 148 71 0 +56.07 ± 27.39 ↓
412209 ncm-dbt-03 586477 500 158 113 229 +31.35 ± 14.85 0 39 128 82 1 +61.79 ± 30.13 ↓
412208 ncm-dbt-02 588472 500 148 119 233 +20.18 ± 14.45 2 37 141 70 0 +43.3 ± 28.43 ↓
412207 ncm-dbt-04 570549 500 155 106 239 +34.16 ± 13.72 0 30 141 79 0 +68.99 ± 28.31 ↓
412206 ncm-dbt-01 581028 500 154 97 249 +39.78 ± 14.48 1 30 130 89 0 +82.1 ± 29.8 ↓
412205 ncm-dbt-05 585126 500 159 100 241 +41.19 ± 13.62 0 26 139 85 0 +83.57 ± 28.49 ↓
412204 ncm-dbt-03 586308 500 144 91 265 +36.97 ± 13.77 1 24 148 75 2 +73.34 ± 27.25 ↓
412203 ncm-dbt-02 586858 500 155 101 244 +37.67 ± 13.39 0 26 144 80 0 +76.25 ± 27.82 ↓
412202 ncm-dbt-04 569230 500 158 110 232 +33.46 ± 14.08 0 33 136 81 0 +67.55 ± 29.02 ↓
412201 ncm-dbt-01 578465 500 137 100 263 +25.76 ± 14.86 0 42 130 77 1 +50.38 ± 29.88 ↓
412200 ncm-dbt-03 585928 500 163 106 231 +39.78 ± 14.35 0 31 132 86 1 +79.17 ± 29.53 ↓
412199 ncm-dbt-05 580406 500 142 99 259 +29.95 ± 13.97 0 34 139 77 0 +60.36 ± 28.64 ↓
412198 ncm-dbt-04 568951 500 171 101 228 +48.96 ± 14.2 0 27 126 97 0 +99.95 ± 30.29 ↓
412197 ncm-dbt-02 587197 500 130 101 269 +20.17 ± 14.58 0 42 139 67 2 +37.67 ± 28.72 ↓
412196 ncm-dbt-01 584495 500 155 102 243 +36.97 ± 14.57 1 31 133 84 1 +74.79 ± 29.41 ↓
412195 ncm-dbt-05 581735 500 162 111 227 +35.56 ± 15.0 0 38 124 87 1 +70.44 ± 30.65 ↓
412194 ncm-dbt-03 588132 500 163 104 233 +41.19 ± 14.83 1 30 130 87 2 +82.1 ± 29.8 ↓
412193 ncm-dbt-04 568912 500 148 108 244 +27.85 ± 14.49 0 39 132 79 0 +56.07 ± 29.61 ↓
412192 ncm-dbt-02 585717 500 162 102 236 +41.89 ± 14.87 0 34 123 92 1 +83.57 ± 30.77 ↓
412191 ncm-dbt-01 585548 500 157 111 232 +32.05 ± 14.12 0 34 136 80 0 +64.66 ± 29.04 ↓
412190 ncm-dbt-05 581236 500 160 99 241 +42.6 ± 15.04 0 34 123 91 2 +83.57 ± 30.77 ↓
412189 ncm-dbt-04 567958 500 164 90 246 +51.8 ± 13.66 0 22 132 96 0 +106.01 ± 29.35 ↓
412188 ncm-dbt-03 584958 500 150 92 258 +40.49 ± 14.39 2 26 134 88 0 +85.04 ± 29.21 ↓
412187 ncm-dbt-02 586097 500 158 105 237 +36.97 ± 14.96 2 31 130 86 1 +76.25 ± 29.82 ↓
412186 ncm-dbt-01 582694 500 163 113 224 +34.86 ± 15.2 1 35 130 81 3 +67.55 ± 29.85 ↓
412185 ncm-dbt-02 586435 500 152 103 245 +34.16 ± 15.53 0 43 116 90 1 +67.55 ± 31.69 ↓
412184 ncm-dbt-04 569869 500 145 102 253 +29.95 ± 14.11 0 35 137 78 0 +60.36 ± 28.92 ↓
412183 ncm-dbt-05 597863 500 144 88 268 +39.08 ± 14.44 0 33 128 89 0 +79.17 ± 30.09 ↓
412182 ncm-dbt-03 586520 500 146 105 249 +28.55 ± 14.41 0 38 133 79 0 +57.5 ± 29.47 ↓

Commit

Commit ID 0827e00f10709a4475ece44f0588277fc8cdcd9d
Author Muzhen Gaming
Date 2023-02-02 16:45:57 UTC
Decrease reduction for killer moves with good history If move is a main killer and we have a good history, decrease reduction. STC: https://tests.stockfishchess.org/tests/view/63d38b37721fe2bff693069a LLR: 2.95 (-2.94,2.94) <0.00,2.00> Total: 46688 W: 12542 L: 12222 D: 21924 Ptnml(0-2): 126, 5013, 12769, 5287, 149 LTC: https://tests.stockfishchess.org/tests/view/63d471e2bde6e5f3cb4be5d3 LLR: 2.93 (-2.94,2.94) <0.50,2.50> Total: 130976 W: 35033 L: 34555 D: 61388 Ptnml(0-2): 38, 12551, 39833, 13027, 39 closes https://github.com/official-stockfish/Stockfish/pull/4369 Bench: 4069938
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