Dev Builds » 20230109-1915

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 07:01:32 583998 4002 1199 836 1967 +31.6 ± 5.24 5 294 1044 649 9 +63.02 ± 10.51
ncm-dbt-02 07:00:18 585586 4000 1166 885 1949 +24.45 ± 5.1 4 304 1106 579 7 +48.61 ± 10.16
ncm-dbt-03 07:01:40 584626 4000 1172 862 1966 +26.98 ± 5.13 4 301 1081 609 5 +54.11 ± 10.3
ncm-dbt-04 06:59:38 569016 4000 1225 854 1921 +32.32 ± 5.13 7 266 1084 635 8 +65.02 ± 10.27
ncm-dbt-05 07:02:05 577732 3998 1137 888 1973 +21.67 ± 5.15 2 334 1081 577 5 +42.97 ± 10.31
20000 5899 4325 9776 +27.4 ± 2.3 22 1499 5396 3049 34 +54.72 ± 4.61

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
430867 ncm-dbt-01 585506 2 1 1 0 0.0 ± 34.02 0 0 1 0 0 0.0 ± 30.47
430866 ncm-dbt-03 581070 500 157 116 227 +28.56 ± 14.67 1 37 132 80 0 +58.93 ± 29.6
430865 ncm-dbt-05 580655 498 140 115 243 +17.45 ± 14.29 0 42 141 65 1 +33.59 ± 28.44
430864 ncm-dbt-02 589069 500 150 106 244 +30.65 ± 14.68 0 37 134 77 2 +58.93 ± 29.33
430863 ncm-dbt-04 569669 500 147 117 236 +20.87 ± 15.86 2 46 124 76 2 +41.89 ± 30.66
430862 ncm-dbt-01 583279 500 146 94 260 +36.26 ± 15.04 1 34 129 84 2 +71.89 ± 29.97
430861 ncm-dbt-02 584285 500 140 116 244 +16.69 ± 14.82 0 48 130 72 0 +33.46 ± 29.9
430860 ncm-dbt-03 584034 500 151 93 256 +40.49 ± 15.66 2 36 114 98 0 +85.04 ± 31.98
430859 ncm-dbt-04 568196 500 152 103 245 +34.16 ± 14.52 0 36 129 85 0 +68.99 ± 29.98
430858 ncm-dbt-05 579661 500 157 111 232 +32.06 ± 15.03 1 38 125 86 0 +66.1 ± 30.52
430857 ncm-dbt-01 585211 500 149 95 256 +37.67 ± 13.95 0 30 136 84 0 +76.25 ± 28.98
430856 ncm-dbt-02 588089 500 146 113 241 +22.96 ± 13.45 0 34 149 67 0 +46.13 ± 27.31
430855 ncm-dbt-03 586477 500 148 118 234 +20.87 ± 14.88 0 45 131 73 1 +40.48 ± 29.77
430854 ncm-dbt-05 576660 500 131 117 252 +9.73 ± 14.25 0 46 146 56 2 +16.69 ± 27.82
430853 ncm-dbt-04 569151 500 143 104 253 +27.16 ± 14.7 1 37 135 76 1 +54.65 ± 29.21
430852 ncm-dbt-01 582277 500 152 109 239 +29.95 ± 16.11 2 43 117 86 2 +60.36 ± 31.55
430851 ncm-dbt-02 585928 500 152 107 241 +31.35 ± 14.47 0 35 137 76 2 +60.36 ± 28.92
430850 ncm-dbt-03 585928 500 145 110 245 +24.36 ± 14.24 0 38 140 71 1 +47.55 ± 28.56
430849 ncm-dbt-05 573891 500 147 98 255 +34.16 ± 13.99 0 32 137 81 0 +68.99 ± 28.88
430848 ncm-dbt-04 569071 500 165 120 215 +31.35 ± 14.85 2 33 134 80 1 +64.66 ± 29.31
430847 ncm-dbt-01 583070 500 149 105 246 +30.65 ± 13.89 0 33 140 77 0 +61.79 ± 28.49
430846 ncm-dbt-02 585253 500 146 103 251 +29.95 ± 14.11 1 32 140 77 0 +61.79 ± 28.49
430845 ncm-dbt-04 566967 500 154 106 240 +33.46 ± 13.81 2 25 146 77 0 +70.44 ± 27.57
430844 ncm-dbt-03 586350 500 139 104 257 +24.36 ± 15.01 0 44 128 77 1 +47.55 ± 30.15
430843 ncm-dbt-05 572155 500 143 104 253 +27.15 ± 14.44 0 39 133 78 0 +54.65 ± 29.48
430842 ncm-dbt-01 584453 500 150 117 233 +22.96 ± 14.78 1 39 138 70 2 +44.72 ± 28.84
430841 ncm-dbt-02 584159 500 134 118 248 +11.12 ± 14.75 1 47 138 63 1 +22.27 ± 28.88
430840 ncm-dbt-05 580282 500 152 118 230 +23.66 ± 15.21 1 43 128 77 1 +47.55 ± 30.15
430839 ncm-dbt-03 583782 500 144 105 251 +27.16 ± 14.31 1 35 138 76 0 +56.07 ± 28.8
430838 ncm-dbt-01 584706 500 150 113 237 +25.76 ± 14.47 0 40 133 77 0 +51.8 ± 29.48
430837 ncm-dbt-04 570949 500 145 102 253 +29.95 ± 13.84 0 33 141 76 0 +60.36 ± 28.36
430836 ncm-dbt-02 585464 500 136 107 257 +20.17 ± 14.58 2 36 145 65 2 +40.48 ± 27.9
430835 ncm-dbt-04 566414 500 165 90 245 +52.51 ± 13.69 0 21 134 94 1 +106.01 ± 29.04
430834 ncm-dbt-01 584117 500 154 104 242 +34.86 ± 15.7 1 40 119 88 2 +68.99 ± 31.3
430833 ncm-dbt-05 576782 500 132 106 262 +18.08 ± 14.8 0 47 130 73 0 +36.26 ± 29.9
430832 ncm-dbt-03 584243 500 143 106 251 +25.76 ± 13.25 0 30 154 65 1 +50.38 ± 26.56
430831 ncm-dbt-02 582444 500 162 115 223 +32.76 ± 14.3 0 35 133 82 0 +66.1 ± 29.44
430830 ncm-dbt-04 571712 500 154 112 234 +29.25 ± 14.46 0 35 141 71 3 +54.65 ± 28.39
430829 ncm-dbt-03 585126 500 145 110 245 +24.36 ± 13.97 0 36 144 69 1 +47.55 ± 28.01
430828 ncm-dbt-01 583363 500 148 98 254 +34.86 ± 14.57 0 35 131 83 1 +68.99 ± 29.71
430827 ncm-dbt-05 581777 500 135 119 246 +11.12 ± 14.37 0 47 141 61 1 +20.87 ± 28.49

Commit

Commit ID 4101893a28b4d34262ed1fba10f2365e964b6537
Author candirufish
Date 2023-01-09 19:15:08 UTC
On step 18 increase reduction by 2 if not ttmove and cutnode stc: https://tests.stockfishchess.org/tests/view/63babc9fcd3db0c8d399f723 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 43104 W: 11711 L: 11389 D: 20004 Ptnml(0-2): 211, 4518, 11793, 4798, 232 ltc: https://tests.stockfishchess.org/tests/view/63bb1857cd3db0c8d39a0661 LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 127104 W: 33810 L: 33339 D: 59955 Ptnml(0-2): 39, 12155, 38702, 12608, 48 closes https://github.com/official-stockfish/Stockfish/pull/4334 Bench: 4035725
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