Dev Builds » 20230528-1805

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 06:56:49 583865 4000 1249 776 1975 +41.28 ± 5.06 1 241 1046 708 4 +83.2 ± 10.47
ncm-dbt-02 06:56:11 587276 4000 1268 797 1935 +41.1 ± 5.02 2 232 1064 697 5 +82.83 ± 10.36
ncm-dbt-03 06:57:09 587264 4014 1253 796 1965 +39.73 ± 5.01 0 245 1064 694 4 +79.79 ± 10.37
ncm-dbt-04 06:55:48 570461 4000 1310 765 1925 +47.63 ± 4.99 2 206 1041 747 4 +96.75 ± 10.48
ncm-dbt-05 06:56:24 584992 3986 1270 786 1930 +42.4 ± 5.17 0 254 1009 722 8 +84.61 ± 10.69
20000 6350 3920 9730 +42.42 ± 2.26 5 1178 5224 3568 25 +85.41 ± 4.68

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
393769 ncm-dbt-03 587494 14 3 5 6 -49.96 ± 94.42 0 3 3 1 0 -102.11 ± 234.06
393768 ncm-dbt-05 587537 486 159 105 222 +38.76 ± 15.68 0 39 112 91 1 +77.02 ± 32.26
393767 ncm-dbt-01 586435 500 152 85 263 +46.84 ± 14.36 0 26 134 87 3 +90.97 ± 29.17
393766 ncm-dbt-04 570428 500 169 105 226 +44.72 ± 13.4 0 23 140 87 0 +90.97 ± 28.28
393765 ncm-dbt-02 587325 500 154 101 245 +36.97 ± 13.77 0 29 139 82 0 +74.79 ± 28.56
393764 ncm-dbt-03 587622 500 159 99 242 +41.89 ± 13.66 0 26 138 86 0 +85.04 ± 28.63
393763 ncm-dbt-05 586985 500 165 94 241 +49.67 ± 14.64 0 26 131 89 4 +95.44 ± 29.59
393762 ncm-dbt-01 581902 500 155 98 247 +39.78 ± 14.35 0 32 129 89 0 +80.63 ± 29.95
393761 ncm-dbt-04 571190 500 162 91 247 +49.67 ± 14.38 2 21 132 94 1 +102.97 ± 29.38
393760 ncm-dbt-02 587494 500 171 101 228 +48.96 ± 15.13 0 32 118 98 2 +96.94 ± 31.44
393759 ncm-dbt-03 588302 500 140 101 259 +27.15 ± 14.57 0 40 131 79 0 +54.65 ± 29.74
393758 ncm-dbt-05 582778 500 145 91 264 +37.67 ± 13.95 0 30 136 84 0 +76.25 ± 28.98
393757 ncm-dbt-01 583698 500 173 99 228 +51.8 ± 14.35 0 27 122 101 0 +106.01 ± 30.85
393756 ncm-dbt-04 571310 500 165 94 241 +49.67 ± 14.1 0 26 127 97 0 +101.46 ± 30.14
393755 ncm-dbt-03 588430 500 160 84 256 +53.22 ± 13.87 0 22 131 96 1 +107.54 ± 29.49
393754 ncm-dbt-02 588515 500 163 101 236 +43.3 ± 14.02 0 28 132 90 0 +88.0 ± 29.49
393753 ncm-dbt-05 582819 500 166 101 233 +45.42 ± 14.28 0 29 127 94 0 +92.46 ± 30.18
393752 ncm-dbt-01 583363 500 161 109 230 +36.26 ± 14.79 0 37 124 89 0 +73.34 ± 30.64
393751 ncm-dbt-03 585885 500 163 108 229 +38.37 ± 14.13 0 31 133 86 0 +77.71 ± 29.4
393750 ncm-dbt-04 569470 500 166 98 236 +47.55 ± 14.53 0 30 122 98 0 +96.94 ± 30.88
393749 ncm-dbt-02 587962 500 150 104 246 +32.06 ± 14.12 1 31 139 79 0 +66.1 ± 28.61
393748 ncm-dbt-05 582277 500 150 99 251 +35.56 ± 14.87 0 37 126 86 1 +70.44 ± 30.38
393747 ncm-dbt-01 584706 500 151 89 260 +43.3 ± 14.29 0 29 131 89 1 +86.52 ± 29.64
393746 ncm-dbt-04 571511 500 158 93 249 +45.42 ± 14.14 0 28 129 93 0 +92.46 ± 29.89
393745 ncm-dbt-03 586731 500 156 101 243 +38.37 ± 14.66 0 33 131 84 2 +74.79 ± 29.69
393744 ncm-dbt-02 587113 500 172 96 232 +53.22 ± 13.73 0 21 133 95 1 +107.54 ± 29.18
393743 ncm-dbt-05 587919 500 172 104 224 +47.55 ± 14.79 0 32 118 100 0 +96.94 ± 31.44
393742 ncm-dbt-01 584285 500 168 115 217 +36.97 ± 14.04 1 28 138 83 0 +76.25 ± 28.69
393741 ncm-dbt-03 586393 500 150 95 255 +38.37 ± 14.53 0 34 127 89 0 +77.71 ± 30.23
393740 ncm-dbt-04 567284 500 159 100 241 +41.19 ± 14.03 0 29 133 88 0 +83.57 ± 29.37
393739 ncm-dbt-02 586901 500 142 97 261 +31.35 ± 13.52 0 30 145 75 0 +63.23 ± 27.78
393738 ncm-dbt-05 581277 500 160 101 239 +41.19 ± 14.3 0 31 129 90 0 +83.57 ± 29.93
393737 ncm-dbt-01 580862 500 134 82 284 +36.26 ± 13.44 0 27 144 79 0 +73.34 ± 27.84
393736 ncm-dbt-04 571712 500 167 89 244 +54.64 ± 13.66 0 20 133 96 1 +110.6 ± 29.15
393735 ncm-dbt-03 586477 500 170 109 221 +42.6 ± 14.52 0 31 128 90 1 +85.04 ± 30.07
393734 ncm-dbt-02 583572 500 164 99 237 +45.42 ± 14.41 0 30 125 95 0 +92.46 ± 30.47
393733 ncm-dbt-05 588345 500 153 91 256 +43.3 ± 14.56 0 30 130 88 2 +85.04 ± 29.79
393732 ncm-dbt-04 570789 500 164 95 241 +48.25 ± 14.7 0 29 125 94 2 +95.44 ± 30.46
393731 ncm-dbt-01 585674 500 155 99 246 +39.08 ± 14.7 0 35 124 91 0 +79.17 ± 30.64
393730 ncm-dbt-03 588047 500 152 94 254 +40.48 ± 13.43 0 25 142 83 0 +82.1 ± 28.06
393729 ncm-dbt-02 589326 500 152 98 250 +37.67 ± 14.74 1 31 133 83 2 +74.79 ± 29.41

Commit

Commit ID 7e9b131efb832339ee6cd9e22b7c837c3e69a1b5
Author windfishballad
Date 2023-05-28 18:05:50 UTC
Removed quadratic term in optimism Remove term which is quadratic in optimism in the eval. Simplifies and should also remove the bias towards side to move making the eval better for analysis. STC: https://tests.stockfishchess.org/tests/view/6470a9d8c29e0d4352b0bca5 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 154432 W: 41127 L: 41040 D: 72265 Ptnml(0-2): 380, 17094, 42190, 17163, 389 LTC: https://tests.stockfishchess.org/tests/view/6471e9b3e549d9cf2fb219ef LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 127926 W: 34474 L: 34369 D: 59083 Ptnml(0-2): 43, 12505, 38776, 12582, 57 closes https://github.com/official-stockfish/Stockfish/pull/4590 Bench: 2541211
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