Dev Builds » 20211024-2017

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 06:52:51 584591 4000 729 1312 1959 -51.0 ± 5.28 16 785 969 226 4 -102.03 ± 10.93
ncm-dbt-02 06:53:02 586326 4000 709 1276 2015 -49.58 ± 5.17 10 776 985 229 0 -99.39 ± 10.83
ncm-dbt-03 06:54:02 587199 4002 727 1297 1978 -49.82 ± 5.2 10 780 986 220 5 -100.84 ± 10.82
ncm-dbt-04 06:52:42 571705 4000 724 1325 1951 -52.6 ± 5.07 6 795 995 202 2 -106.97 ± 10.75
ncm-dbt-05 06:54:17 584115 3998 749 1322 1927 -50.14 ± 5.24 11 786 970 229 3 -100.95 ± 10.92
20000 3638 6532 9830 -50.63 ± 2.32 53 3922 4905 1106 14 -102.03 ± 4.85

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
405826 ncm-dbt-03 586646 2 1 1 0 0.0 ± 34.02 0 0 1 0 0 0.0 ± 30.47
405825 ncm-dbt-05 582235 498 92 161 245 -48.45 ± 15.4 0 103 114 30 2 -101.89 ± 32.0
405824 ncm-dbt-01 584706 500 97 170 233 -51.09 ± 14.98 5 90 128 27 0 -96.94 ± 30.02
405823 ncm-dbt-04 570749 500 90 161 249 -49.67 ± 13.97 0 95 132 22 1 -102.97 ± 29.38
405822 ncm-dbt-02 587070 500 89 152 259 -44.01 ± 14.47 1 91 128 30 0 -88.0 ± 30.06
405821 ncm-dbt-03 587749 500 90 161 249 -49.67 ± 15.42 1 103 113 32 1 -101.46 ± 32.14
405820 ncm-dbt-01 585211 500 98 157 245 -41.19 ± 15.21 0 96 118 35 1 -85.04 ± 31.44
405819 ncm-dbt-04 568951 500 96 154 250 -40.48 ± 14.52 0 91 126 33 0 -82.1 ± 30.36
405818 ncm-dbt-02 586393 500 91 157 252 -46.13 ± 14.85 0 99 118 33 0 -93.95 ± 31.44
405817 ncm-dbt-05 585801 500 96 158 246 -43.3 ± 14.82 0 96 120 34 0 -88.0 ± 31.17
405816 ncm-dbt-03 585295 500 98 167 235 -48.25 ± 14.43 1 94 129 25 1 -98.44 ± 29.86
405815 ncm-dbt-04 571752 500 86 167 247 -56.78 ± 13.62 0 101 129 20 0 -116.78 ± 29.72
405814 ncm-dbt-01 585211 500 78 164 258 -60.36 ± 14.76 2 107 116 25 0 -121.46 ± 31.7
405813 ncm-dbt-05 581818 500 93 159 248 -46.13 ± 14.58 1 94 125 30 0 -92.46 ± 30.47
405812 ncm-dbt-02 585253 500 78 148 274 -48.96 ± 14.61 0 100 120 30 0 -99.95 ± 31.16
405811 ncm-dbt-03 586266 500 90 167 243 -53.93 ± 14.05 2 95 131 22 0 -107.54 ± 29.49
405810 ncm-dbt-04 571070 500 89 167 244 -54.65 ± 14.36 0 104 120 26 0 -112.14 ± 31.13
405809 ncm-dbt-01 585169 500 96 166 238 -48.96 ± 14.74 1 98 121 30 0 -98.44 ± 31.02
405808 ncm-dbt-02 588771 500 106 155 239 -34.16 ± 14.52 1 82 132 35 0 -67.55 ± 29.58
405807 ncm-dbt-05 584622 500 100 178 222 -54.64 ± 14.76 6 89 132 23 0 -102.97 ± 29.38
405806 ncm-dbt-03 586774 500 73 149 278 -53.22 ± 14.15 1 98 127 24 0 -107.54 ± 30.1
405805 ncm-dbt-04 572961 500 86 165 249 -55.36 ± 14.53 2 100 123 25 0 -110.6 ± 30.69
405804 ncm-dbt-01 585421 500 86 169 245 -58.21 ± 15.57 2 111 105 32 0 -116.78 ± 33.3
405803 ncm-dbt-02 586901 500 85 157 258 -50.38 ± 14.0 0 97 128 25 0 -102.97 ± 29.98
405802 ncm-dbt-05 584706 500 92 172 236 -56.07 ± 14.7 1 105 117 27 0 -113.68 ± 31.56
405801 ncm-dbt-03 588643 500 90 167 243 -53.94 ± 14.73 0 105 118 26 1 -112.14 ± 31.42
405800 ncm-dbt-04 573082 500 92 173 235 -56.78 ± 14.73 1 105 119 24 1 -116.78 ± 31.26
405799 ncm-dbt-01 583908 500 89 168 243 -55.36 ± 14.93 2 102 120 25 1 -112.14 ± 31.13
405798 ncm-dbt-02 585295 500 84 170 246 -60.36 ± 14.49 1 108 117 24 0 -123.02 ± 31.54
405797 ncm-dbt-05 583992 500 90 167 243 -53.94 ± 14.99 0 107 114 28 1 -112.14 ± 32.0
405796 ncm-dbt-03 588899 500 89 161 250 -50.38 ± 14.68 2 96 124 28 0 -99.95 ± 30.58
405795 ncm-dbt-04 571511 500 98 175 227 -53.93 ± 13.48 0 97 133 20 0 -110.6 ± 29.15
405794 ncm-dbt-02 584495 500 83 163 254 -56.07 ± 15.09 3 102 117 28 0 -110.6 ± 31.57
405793 ncm-dbt-01 582945 500 90 160 250 -48.96 ± 14.34 2 92 130 26 0 -96.94 ± 29.72
405792 ncm-dbt-05 583614 500 87 166 247 -55.36 ± 14.93 2 103 117 28 0 -110.6 ± 31.57
405791 ncm-dbt-03 588217 500 89 161 250 -50.38 ± 14.55 0 101 120 29 0 -102.97 ± 31.15
405790 ncm-dbt-04 573568 500 87 163 250 -53.22 ± 15.47 3 102 113 32 0 -104.49 ± 32.14
405789 ncm-dbt-02 586435 500 93 174 233 -56.78 ± 14.73 4 97 125 24 0 -110.6 ± 30.39
405788 ncm-dbt-01 584159 500 95 158 247 -44.01 ± 14.86 2 89 131 26 2 -89.48 ± 29.62
405787 ncm-dbt-05 586139 500 99 161 240 -43.3 ± 14.29 1 89 131 29 0 -86.52 ± 29.64
405786 ncm-dbt-03 586308 500 107 163 230 -39.08 ± 15.7 3 88 123 34 2 -77.71 ± 30.77

Commit

Commit ID 2c86ae196df8b2a1197e0de1853a6458e404a976
Author Joost VandeVondele
Date 2021-10-24 20:17:55 UTC
Adjust ButterflyHistory decay parameter passed STC: LLR: 2.98 (-2.94,2.94) <-0.50,2.50> Total: 26680 W: 6807 L: 6593 D: 13280 Ptnml(0-2): 73, 3007, 6989, 3175, 96 https://tests.stockfishchess.org/tests/view/6174094e6ce927be32558441 passed LTC: LLR: 2.98 (-2.94,2.94) <0.50,3.50> Total: 21104 W: 5403 L: 5185 D: 10516 Ptnml(0-2): 8, 2160, 6001, 2372, 11 https://tests.stockfishchess.org/tests/view/61744927351812fe5f969864 closes https://github.com/official-stockfish/Stockfish/pull/3761 Bench: 6334068
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