Dev Builds » 20221202-1906

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 06:57:51 582219 4000 1139 904 1957 +20.44 ± 5.09 5 323 1107 562 3 +41.37 ± 10.16
ncm-dbt-02 06:59:10 584196 4000 1125 898 1977 +19.74 ± 5.16 6 334 1090 567 3 +40.13 ± 10.26
ncm-dbt-03 06:58:24 585902 4000 1178 952 1870 +19.65 ± 5.23 6 342 1081 562 9 +38.9 ± 10.31
ncm-dbt-04 06:58:45 568563 4000 1118 907 1975 +18.34 ± 5.11 4 336 1110 545 5 +36.62 ± 10.15
ncm-dbt-05 06:57:29 584148 4000 1183 918 1899 +23.05 ± 5.15 4 324 1077 593 2 +46.66 ± 10.33
20000 5743 4579 9678 +20.24 ± 2.3 25 1659 5465 2829 22 +40.73 ± 4.58

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
413001 ncm-dbt-03 586435 500 131 115 254 +11.12 ± 14.75 0 49 138 61 2 +19.48 ± 28.88 ↓
413000 ncm-dbt-04 569989 500 136 112 252 +16.69 ± 14.56 0 45 137 67 1 +32.05 ± 29.0 ↓
412999 ncm-dbt-05 581735 500 151 123 226 +19.48 ± 15.4 1 48 123 78 0 +40.48 ± 30.78 ↓
412998 ncm-dbt-02 586054 500 135 107 258 +19.48 ± 14.0 0 40 142 68 0 +39.08 ± 28.31 ↓
412997 ncm-dbt-01 584076 500 136 104 260 +22.27 ± 14.98 0 46 126 78 0 +44.72 ± 30.4 ↓
412996 ncm-dbt-03 586054 500 150 109 241 +28.55 ± 14.79 1 37 133 78 1 +57.5 ± 29.47 ↓
412995 ncm-dbt-05 583866 500 146 123 231 +15.99 ± 13.58 0 38 152 59 1 +30.65 ± 26.96 ↓
412994 ncm-dbt-04 570348 500 138 104 258 +23.66 ± 13.78 1 33 147 69 0 +48.96 ± 27.58 ↓
412993 ncm-dbt-02 583112 500 152 97 251 +38.37 ± 14.26 0 31 134 84 1 +76.25 ± 29.26 ↓
412992 ncm-dbt-01 582402 500 145 120 235 +17.39 ± 14.23 0 43 139 68 0 +34.86 ± 28.73 ↓
412991 ncm-dbt-03 585970 500 154 122 224 +22.27 ± 14.47 1 38 140 70 1 +44.72 ± 28.57 ↓
412990 ncm-dbt-04 568633 500 142 126 232 +11.12 ± 14.37 1 44 144 60 1 +22.27 ± 28.08 ↓
412989 ncm-dbt-05 586012 500 146 102 252 +30.65 ± 15.8 1 45 113 91 0 +63.23 ± 32.06 ↓
412988 ncm-dbt-02 585970 500 153 108 239 +31.36 ± 14.73 1 36 130 83 0 +64.66 ± 29.86 ↓
412987 ncm-dbt-01 581444 500 147 120 233 +18.78 ± 14.21 0 42 139 69 0 +37.67 ± 28.72 ↓
412986 ncm-dbt-05 584285 500 142 107 251 +24.36 ± 14.63 1 39 134 76 0 +50.38 ± 29.35 ↓
412985 ncm-dbt-02 581444 500 134 113 253 +14.6 ± 15.52 1 52 122 75 0 +30.65 ± 30.9 ↓
412984 ncm-dbt-03 585548 500 144 115 241 +20.17 ± 15.2 1 45 129 74 1 +40.48 ± 30.02 ↓
412983 ncm-dbt-04 569470 500 130 107 263 +15.99 ± 14.51 0 45 138 66 1 +30.65 ± 28.87 ↓
412982 ncm-dbt-01 580738 500 146 109 245 +25.76 ± 14.21 0 37 140 72 1 +50.38 ± 28.55 ↓
412981 ncm-dbt-05 580572 500 154 121 225 +22.96 ± 14.4 0 41 135 74 0 +46.13 ± 29.23 ↓
412980 ncm-dbt-03 583950 500 153 118 229 +24.36 ± 14.11 1 34 145 69 1 +48.96 ± 27.86 ↓
412979 ncm-dbt-02 584832 500 142 112 246 +20.87 ± 13.7 0 37 146 67 0 +41.89 ± 27.75 ↓
412978 ncm-dbt-04 565430 500 149 111 240 +26.46 ± 14.65 1 38 133 78 0 +54.65 ± 29.48 ↓
412977 ncm-dbt-01 579372 500 137 111 252 +18.08 ± 14.42 1 41 139 69 0 +37.67 ± 28.72 ↓
412976 ncm-dbt-03 586985 500 145 121 234 +16.69 ± 14.82 0 48 130 72 0 +33.46 ± 29.9 ↓
412975 ncm-dbt-05 579413 500 140 111 249 +20.17 ± 14.7 0 44 134 71 1 +39.08 ± 29.38 ↓
412974 ncm-dbt-04 567165 500 132 114 254 +12.51 ± 14.74 1 46 138 64 1 +25.06 ± 28.88 ↓
412973 ncm-dbt-02 582903 500 143 115 242 +19.48 ± 13.59 0 37 148 65 0 +39.08 ± 27.49 ↓
412972 ncm-dbt-01 582861 500 131 115 254 +11.12 ± 14.24 1 44 143 62 0 +23.66 ± 28.22 ↓
412971 ncm-dbt-03 586223 500 156 131 213 +17.39 ± 15.61 2 45 132 68 3 +33.46 ± 29.64 ↓
412970 ncm-dbt-05 586435 500 146 113 241 +22.97 ± 14.27 1 37 140 72 0 +47.55 ± 28.56 ↓
412969 ncm-dbt-04 567363 500 148 112 240 +25.06 ± 14.55 0 40 135 74 1 +48.96 ± 29.23 ↓
412968 ncm-dbt-02 582569 500 135 119 246 +11.12 ± 15.61 3 48 130 68 1 +25.06 ± 29.91 ↓
412967 ncm-dbt-01 581902 500 152 104 244 +33.46 ± 13.81 0 30 143 76 1 +66.1 ± 28.04 ↓
412966 ncm-dbt-05 590868 500 158 118 224 +27.85 ± 13.55 0 32 146 72 0 +56.07 ± 27.68 ↓
412965 ncm-dbt-03 586054 500 145 121 234 +16.69 ± 14.56 0 46 134 70 0 +33.46 ± 29.39 ↓
412964 ncm-dbt-04 570108 500 143 121 236 +15.3 ± 14.32 0 45 138 67 0 +30.65 ± 28.87 ↓
412963 ncm-dbt-01 584958 500 145 121 234 +16.69 ± 15.07 3 40 138 68 1 +36.26 ± 28.86 ↓
412962 ncm-dbt-02 586689 500 131 127 242 +2.78 ± 14.8 1 53 138 57 1 +5.56 ± 28.89 ↓

Commit

Commit ID d60f5de9670cc84ba7940b5815bc3e128da9423f
Author Joost VandeVondele
Date 2022-12-02 19:06:59 UTC
Fix bestThread selection If multiple threads have the same best move, pick the thread with the largest contribution to the confidence vote. This thread will later be used to display PV, so this patch is about user-friendliness and/or least surprises, it non-functional for playing strenght. closes https://github.com/official-stockfish/Stockfish/pull/4246 No functional change
Copyright 2011–2025 Next Chess Move LLC
Feedback & Support Terms of Service Privacy Policy Desktop Version