Dev Builds » 20230525-1835

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 06:55:18 583654 4000 1284 788 1928 +43.3 ± 5.14 3 240 1021 730 6 +87.44 ± 10.62
ncm-dbt-02 06:56:05 587077 4000 1279 813 1908 +40.66 ± 5.14 0 256 1030 706 8 +81.0 ± 10.57
ncm-dbt-03 06:55:52 587555 4000 1291 802 1907 +42.69 ± 5.04 3 228 1049 717 3 +86.7 ± 10.45
ncm-dbt-04 06:56:04 571168 4000 1314 786 1900 +46.13 ± 5.12 2 222 1036 726 14 +91.71 ± 10.52
ncm-dbt-05 06:56:44 583046 4000 1280 745 1975 +46.75 ± 5.04 3 212 1038 741 6 +94.7 ± 10.5
20000 6448 3934 9618 +43.9 ± 2.28 11 1158 5174 3620 37 +88.29 ± 4.71

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
393812 ncm-dbt-04 573042 500 165 91 244 +51.8 ± 14.75 1 25 125 97 2 +104.49 ± 30.42
393811 ncm-dbt-02 587494 500 149 100 251 +34.16 ± 14.78 0 38 125 87 0 +68.99 ± 30.52
393810 ncm-dbt-05 582987 500 166 78 256 +61.79 ± 14.55 1 22 115 112 0 +129.35 ± 31.83
393809 ncm-dbt-01 585211 500 159 109 232 +34.86 ± 14.95 1 35 128 85 1 +70.44 ± 30.11
393808 ncm-dbt-03 587919 500 165 97 238 +47.55 ± 13.85 2 19 138 91 0 +99.95 ± 28.49
393807 ncm-dbt-01 583405 500 148 105 247 +29.95 ± 14.24 0 36 135 79 0 +60.36 ± 29.19
393806 ncm-dbt-04 572356 500 173 90 237 +58.21 ± 13.97 0 20 129 99 2 +116.78 ± 29.72
393805 ncm-dbt-02 586097 500 167 92 241 +52.51 ± 15.56 0 33 112 102 3 +102.97 ± 32.28
393804 ncm-dbt-05 581860 500 164 104 232 +41.9 ± 14.87 1 32 123 94 0 +86.52 ± 30.76
393803 ncm-dbt-03 586266 500 164 84 252 +56.07 ± 14.15 1 20 128 100 1 +115.23 ± 29.89
393802 ncm-dbt-04 569031 500 163 110 227 +36.97 ± 14.31 0 31 137 80 2 +71.89 ± 28.86
393801 ncm-dbt-01 583070 500 175 89 236 +60.36 ± 13.35 0 16 133 100 1 +123.02 ± 29.0
393800 ncm-dbt-05 582318 500 151 82 267 +48.25 ± 14.03 0 26 129 95 0 +98.44 ± 29.86
393799 ncm-dbt-02 585674 500 161 105 234 +39.08 ± 14.96 0 36 123 90 1 +77.71 ± 30.77
393798 ncm-dbt-03 589582 500 164 108 228 +39.08 ± 14.17 0 31 132 87 0 +79.17 ± 29.53
393797 ncm-dbt-04 570669 500 158 102 240 +39.08 ± 14.83 1 31 131 85 2 +77.71 ± 29.68
393796 ncm-dbt-05 582987 500 152 90 258 +43.3 ± 14.69 0 33 122 95 0 +88.0 ± 30.9
393795 ncm-dbt-01 582945 500 165 110 225 +38.37 ± 15.17 1 33 129 84 3 +74.79 ± 29.96
393794 ncm-dbt-02 585801 500 158 88 254 +48.96 ± 14.07 0 25 131 93 1 +98.44 ± 29.57
393793 ncm-dbt-03 585590 500 172 104 224 +47.54 ± 14.26 0 27 129 93 1 +95.44 ± 29.88
393792 ncm-dbt-04 572034 500 159 94 247 +45.42 ± 14.01 0 27 131 92 0 +92.46 ± 29.6
393791 ncm-dbt-02 588472 500 165 113 222 +36.26 ± 14.53 0 34 131 84 1 +71.89 ± 29.7
393790 ncm-dbt-05 584664 500 164 91 245 +51.09 ± 13.9 0 22 135 91 2 +101.46 ± 28.94
393789 ncm-dbt-01 583405 500 164 90 246 +51.8 ± 13.8 0 23 130 97 0 +106.01 ± 29.66
393788 ncm-dbt-03 587834 500 162 99 239 +44.01 ± 14.73 0 33 121 96 0 +89.48 ± 31.03
393787 ncm-dbt-01 586054 500 151 98 251 +36.97 ± 15.08 1 36 122 91 0 +76.25 ± 30.91
393786 ncm-dbt-04 569949 500 167 107 226 +41.89 ± 14.07 0 28 135 86 1 +83.57 ± 29.08
393785 ncm-dbt-02 587240 500 158 96 246 +43.3 ± 14.42 0 30 129 90 1 +86.52 ± 29.92
393784 ncm-dbt-05 583363 500 164 101 235 +44.01 ± 13.65 0 24 140 85 1 +88.0 ± 28.31
393783 ncm-dbt-03 587155 500 153 107 240 +32.05 ± 14.38 0 36 132 82 0 +64.66 ± 29.59
393782 ncm-dbt-02 588515 500 162 113 225 +34.16 ± 14.52 0 35 132 82 1 +67.55 ± 29.58
393781 ncm-dbt-04 570029 500 158 90 252 +47.54 ± 15.31 0 33 119 95 3 +92.46 ± 31.31
393780 ncm-dbt-01 581028 500 158 92 250 +46.13 ± 14.45 0 30 124 96 0 +93.95 ± 30.6
393779 ncm-dbt-03 586858 500 160 101 239 +41.19 ± 14.3 0 30 132 87 1 +82.1 ± 29.52
393778 ncm-dbt-05 581527 500 152 101 247 +35.56 ± 13.67 0 29 141 80 0 +71.89 ± 28.29
393777 ncm-dbt-01 584117 500 164 95 241 +48.25 ± 14.83 0 31 120 98 1 +96.94 ± 31.16
393776 ncm-dbt-04 572235 500 171 102 227 +48.25 ± 14.43 0 27 129 92 2 +95.44 ± 29.88
393775 ncm-dbt-02 587325 500 159 106 235 +36.97 ± 13.2 0 25 147 78 0 +74.79 ± 27.38
393774 ncm-dbt-05 584664 500 167 98 235 +48.25 ± 14.57 1 24 133 89 3 +95.44 ± 29.29
393773 ncm-dbt-03 589240 500 151 102 247 +34.16 ± 13.99 0 32 137 81 0 +68.99 ± 28.88

Commit

Commit ID d7e72d801fd68f2ee3c7d6b814bbc82916c30041
Author candirufish
Date 2023-05-25 18:35:13 UTC
More Depth Reduction Reduce more for depth > 3 and depth < 12 LTC: https://tests.stockfishchess.org/tests/view/646c5abbd1f14fd69a6f2fab LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 197280 W: 53405 L: 52797 D: 91078 Ptnml(0-2): 62, 19025, 59886, 19577, 90 STC: https://tests.stockfishchess.org/tests/view/646bee71d1f14fd69a6f259d LLR: 2.95 (-2.94,2.94) <0.00,2.00> Total: 100832 W: 26861 L: 26466 D: 47505 Ptnml(0-2): 240, 10985, 27622, 11278, 291 https://github.com/official-stockfish/Stockfish/pull/4585 bench: 2276617
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