Dev Builds » 20221005-2059

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 06:53:47 584053 4016 1124 904 1988 +19.05 ± 5.12 4 341 1097 563 3 +38.39 ± 10.23
ncm-dbt-02 06:53:09 585980 4000 1128 921 1951 +18.0 ± 5.15 2 355 1079 562 2 +36.09 ± 10.33
ncm-dbt-03 06:53:29 585083 4008 1162 934 1912 +19.79 ± 5.3 7 354 1054 582 7 +39.7 ± 10.47
ncm-dbt-04 06:52:49 568818 4000 1123 944 1933 +15.56 ± 5.21 9 351 1098 536 6 +31.7 ± 10.22
ncm-dbt-05 06:54:22 579096 3976 1117 879 1980 +20.82 ± 5.18 5 330 1079 570 4 +41.97 ± 10.31
20000 5654 4582 9764 +18.64 ± 2.32 27 1731 5407 2813 22 +37.56 ± 4.61

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
431862 ncm-dbt-03 587155 8 2 3 3 -43.64 ± 153.21 0 2 1 1 0 -88.74 ± 710.5 ↓
431861 ncm-dbt-01 585084 16 3 3 10 0.0 ± 86.96 0 2 4 2 0 -0.0 ± 186.24 ↓
431860 ncm-dbt-05 577889 476 147 104 225 +31.47 ± 15.08 2 31 127 78 0 +66.49 ± 30.12 ↓
431859 ncm-dbt-04 567165 500 142 109 249 +22.96 ± 15.4 2 42 128 77 1 +47.55 ± 30.15 ↓
431858 ncm-dbt-02 585674 500 150 118 232 +22.27 ± 14.86 0 45 128 77 0 +44.72 ± 30.15 ↓
431857 ncm-dbt-03 584243 500 144 109 247 +24.36 ± 15.13 1 41 132 74 2 +47.55 ± 29.63 ↓
431856 ncm-dbt-01 582318 500 144 119 237 +17.39 ± 15.37 0 52 121 77 0 +34.86 ± 31.03 ↓
431855 ncm-dbt-05 576619 500 141 98 261 +29.95 ± 14.24 2 30 141 77 0 +63.23 ± 28.35 ↓
431854 ncm-dbt-04 569629 500 146 119 235 +18.78 ± 15.47 2 46 125 77 0 +40.48 ± 30.53 ↓
431853 ncm-dbt-02 585717 500 137 114 249 +15.99 ± 13.72 0 39 150 60 1 +30.65 ± 27.24 ↓
431852 ncm-dbt-01 583489 500 148 115 237 +22.97 ± 14.78 1 41 132 76 0 +47.55 ± 29.63 ↓
431851 ncm-dbt-03 583698 500 143 122 235 +14.6 ± 14.14 0 44 141 65 0 +29.25 ± 28.47 ↓
431850 ncm-dbt-05 581236 500 131 114 255 +11.82 ± 14.56 0 49 135 66 0 +23.66 ± 29.27 ↓
431849 ncm-dbt-02 584117 500 135 123 242 +8.34 ± 15.15 1 52 132 64 1 +16.69 ± 29.66 ↓
431848 ncm-dbt-04 570308 500 133 118 249 +10.43 ± 14.7 1 48 136 65 0 +22.27 ± 29.14 ↓
431847 ncm-dbt-01 583824 500 137 102 261 +24.36 ± 14.11 0 38 139 73 0 +48.96 ± 28.69 ↓
431846 ncm-dbt-03 586562 500 139 108 253 +21.57 ± 15.18 1 45 126 78 0 +44.72 ± 30.4 ↓
431845 ncm-dbt-04 568116 500 148 121 231 +18.78 ± 13.81 1 36 148 65 0 +39.08 ± 27.49 ↓
431844 ncm-dbt-02 588472 500 161 118 221 +29.95 ± 15.26 0 44 119 87 0 +60.36 ± 31.3 ↓
431843 ncm-dbt-05 578547 500 134 95 271 +27.15 ± 15.08 0 42 129 77 2 +51.8 ± 30.01 ↓
431842 ncm-dbt-01 583824 500 154 105 241 +34.16 ± 14.13 0 33 135 82 0 +68.99 ± 29.16 ↓
431841 ncm-dbt-03 586012 500 138 116 246 +15.3 ± 15.57 2 48 127 72 1 +32.05 ± 30.28 ↓
431840 ncm-dbt-05 579537 500 135 118 247 +11.82 ± 15.06 0 52 130 67 1 +22.27 ± 29.91 ↓
431839 ncm-dbt-03 582277 500 163 126 211 +25.76 ± 14.21 0 38 137 75 0 +51.8 ± 28.95 ↓
431838 ncm-dbt-04 568593 500 135 116 249 +13.21 ± 14.15 1 41 147 60 1 +26.46 ± 27.67 ↓
431837 ncm-dbt-02 588302 500 136 120 244 +11.12 ± 14.75 0 51 132 67 0 +22.27 ± 29.65 ↓
431836 ncm-dbt-01 584537 500 130 112 258 +12.51 ± 13.96 1 41 147 61 0 +26.46 ± 27.67 ↓
431835 ncm-dbt-03 586097 500 137 114 249 +15.99 ± 15.02 1 46 133 69 1 +32.05 ± 29.52 ↓
431834 ncm-dbt-04 569629 500 128 120 252 +5.56 ± 14.66 1 50 140 58 1 +11.12 ± 28.63 ↓
431833 ncm-dbt-02 587155 500 137 117 246 +13.9 ± 14.08 0 44 142 64 0 +27.85 ± 28.34 ↓
431832 ncm-dbt-01 584832 500 133 123 244 +6.95 ± 14.78 1 50 138 60 1 +13.9 ± 28.89 ↓
431831 ncm-dbt-05 579537 500 150 111 239 +27.16 ± 14.57 1 36 137 75 1 +54.65 ± 28.94 ↓
431830 ncm-dbt-03 584327 500 152 117 231 +24.36 ± 15.01 1 42 128 79 0 +50.38 ± 30.14 ↓
431829 ncm-dbt-01 583531 500 139 122 239 +11.82 ± 14.81 0 50 134 65 1 +22.27 ± 29.4 ↓
431828 ncm-dbt-04 568077 500 136 117 247 +13.21 ± 14.15 0 45 141 64 0 +26.46 ± 28.48 ↓
431827 ncm-dbt-02 583279 500 131 118 251 +9.04 ± 13.79 0 45 147 58 0 +18.08 ± 27.69 ↓
431826 ncm-dbt-05 579372 500 134 119 247 +10.43 ± 14.31 0 48 139 63 0 +20.87 ± 28.75 ↓
431825 ncm-dbt-03 585379 500 144 119 237 +17.39 ± 15.61 1 48 129 69 3 +32.05 ± 30.03 ↓
431824 ncm-dbt-01 585042 500 136 103 261 +22.96 ± 14.0 1 34 147 67 1 +46.13 ± 27.59 ↓
431823 ncm-dbt-04 569031 500 155 124 221 +21.57 ± 15.31 1 43 133 70 3 +40.48 ± 29.51 ↓
431822 ncm-dbt-05 580033 500 145 120 235 +17.39 ± 14.1 0 42 141 67 0 +34.86 ± 28.46 ↓
431821 ncm-dbt-02 585126 500 141 93 266 +33.46 ± 14.74 1 35 129 85 0 +68.99 ± 29.98 ↓

Commit

Commit ID da937e219ee7981966ac29fc11c43470a505ff18
Author Joost VandeVondele
Date 2022-10-05 20:59:05 UTC
Revert "Mix alpha and statScore for reduction" This reverts commit 8bab09749dd00951bfa9c5f89f6e35bded76c8a9. In this form the patch reduces mate finding effectiveness, as the large alpha value has negative influence on the reductions. see also https://github.com/official-stockfish/Stockfish/pull/4183 Bench: 4114228
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