Dev Builds » 20231105-1853

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 07:00:44 583036 4000 1439 673 1888 +67.37 ± 5.09 3 157 924 903 13 +138.18 ± 11.17
ncm-dbt-02 07:01:38 585755 4000 1426 683 1891 +65.29 ± 5.0 1 153 961 872 13 +133.14 ± 10.92
ncm-dbt-03 07:02:13 583086 4000 1423 639 1938 +68.99 ± 4.97 2 132 964 884 18 +140.62 ± 10.88
ncm-dbt-04 07:02:29 568078 4000 1419 693 1888 +63.77 ± 5.07 2 163 956 865 14 +129.75 ± 10.97
ncm-dbt-05 07:02:49 580399 4000 1397 643 1960 +66.28 ± 4.91 0 142 972 876 10 +135.76 ± 10.84
20000 7104 3331 9565 +66.34 ± 2.24 8 747 4777 4400 68 +135.48 ± 4.9

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
421873 ncm-dbt-05 581402 500 177 77 246 +70.43 ± 14.34 0 19 114 115 2 +143.89 ± 31.92
421872 ncm-dbt-04 567759 500 182 95 223 +61.07 ± 13.68 0 16 134 97 3 +121.46 ± 28.86
421871 ncm-dbt-02 583112 500 175 81 244 +66.1 ± 13.6 0 16 125 108 1 +135.76 ± 30.17
421870 ncm-dbt-01 583070 500 182 92 226 +63.23 ± 14.34 0 22 117 110 1 +129.35 ± 31.52
421869 ncm-dbt-03 581153 500 173 78 249 +66.82 ± 13.48 0 13 132 102 3 +134.15 ± 28.99
421868 ncm-dbt-05 579496 500 172 72 256 +70.44 ± 14.05 0 19 112 119 0 +147.19 ± 32.24
421867 ncm-dbt-04 568951 500 182 81 237 +71.16 ± 14.08 0 18 114 117 1 +147.19 ± 31.9
421866 ncm-dbt-02 586562 500 171 83 246 +61.79 ± 14.41 0 23 117 109 1 +126.18 ± 31.53
421865 ncm-dbt-03 579578 500 182 78 240 +73.34 ± 15.39 1 20 108 116 5 +147.19 ± 32.89
421864 ncm-dbt-01 583782 500 186 74 240 +79.17 ± 14.48 0 19 101 129 1 +165.8 ± 34.05
421863 ncm-dbt-05 580530 500 181 87 232 +66.1 ± 13.74 0 18 120 112 0 +137.37 ± 30.98
421862 ncm-dbt-04 567561 500 177 87 236 +63.23 ± 14.88 0 27 106 117 0 +130.94 ± 33.2
421861 ncm-dbt-03 582235 500 186 82 232 +73.33 ± 15.13 0 23 103 121 3 +148.85 ± 33.7
421860 ncm-dbt-01 581777 500 173 87 240 +60.36 ± 13.93 0 18 131 98 3 +119.89 ± 29.37
421859 ncm-dbt-02 586689 500 181 80 239 +71.16 ± 13.93 0 16 119 113 2 +145.54 ± 31.07
421858 ncm-dbt-04 567799 500 178 84 238 +66.1 ± 14.45 1 15 128 101 5 +130.94 ± 29.72
421857 ncm-dbt-01 585801 500 188 91 221 +68.27 ± 14.67 0 22 111 115 2 +138.99 ± 32.43
421856 ncm-dbt-05 581818 500 177 85 238 +64.66 ± 14.26 0 20 120 108 2 +130.94 ± 31.03
421855 ncm-dbt-03 585295 500 171 77 252 +66.1 ± 13.3 0 15 126 109 0 +137.37 ± 29.98
421854 ncm-dbt-02 584706 500 188 88 224 +70.43 ± 14.05 0 16 121 110 3 +142.26 ± 30.77
421853 ncm-dbt-05 579868 500 176 82 242 +66.1 ± 13.3 0 15 126 109 0 +137.37 ± 29.98
421852 ncm-dbt-01 581693 500 171 88 241 +58.21 ± 14.11 1 19 127 102 1 +119.89 ± 30.01
421851 ncm-dbt-03 584327 500 181 90 229 +63.95 ± 13.8 1 14 130 103 2 +130.94 ± 29.39
421850 ncm-dbt-04 566020 500 168 95 237 +51.09 ± 14.58 0 28 122 99 1 +102.97 ± 30.86
421849 ncm-dbt-02 586012 500 167 86 247 +56.78 ± 14.19 1 19 130 98 2 +115.23 ± 29.58
421848 ncm-dbt-05 581111 500 176 84 240 +64.66 ± 13.54 0 16 127 106 1 +132.54 ± 29.87
421847 ncm-dbt-03 584076 500 171 90 239 +56.78 ± 13.48 0 19 131 100 0 +116.78 ± 29.4
421846 ncm-dbt-02 586054 500 203 101 196 +71.88 ± 13.81 0 14 123 110 3 +145.54 ± 30.38
421845 ncm-dbt-04 570068 500 173 86 241 +61.07 ± 14.52 0 24 116 109 1 +124.6 ± 31.69
421844 ncm-dbt-01 582360 500 180 82 238 +68.99 ± 14.42 0 22 108 120 0 +143.89 ± 32.9
421843 ncm-dbt-05 581860 500 173 77 250 +67.54 ± 13.65 0 15 126 107 2 +137.37 ± 29.98
421842 ncm-dbt-04 568912 500 186 75 239 +78.43 ± 14.02 0 14 114 119 3 +160.64 ± 31.79
421841 ncm-dbt-03 583028 500 188 73 239 +81.36 ± 13.81 0 12 114 121 3 +167.53 ± 31.71
421840 ncm-dbt-02 586181 500 173 85 242 +61.79 ± 14.82 0 26 111 112 1 +126.18 ± 32.44
421839 ncm-dbt-01 582193 500 176 73 251 +72.61 ± 14.69 1 17 113 116 3 +148.85 ± 32.06
421838 ncm-dbt-01 583614 500 183 86 231 +68.27 ± 14.54 1 18 116 113 2 +140.62 ± 31.61
421837 ncm-dbt-05 577110 500 165 79 256 +60.36 ± 14.21 0 20 127 100 3 +119.89 ± 30.01
421836 ncm-dbt-04 567561 500 173 90 237 +58.21 ± 14.25 1 21 122 106 0 +121.46 ± 30.78
421835 ncm-dbt-03 585000 500 171 71 258 +70.43 ± 13.91 0 16 120 112 2 +143.89 ± 30.92
421834 ncm-dbt-02 586731 500 168 79 253 +62.51 ± 14.31 0 23 115 112 0 +129.35 ± 31.83

Commit

Commit ID d4b46ea6db7caf71cad3c36d0ef8c0162a743aba
Author FauziAkram
Date 2023-11-05 18:53:15 UTC
Set reduction to 0 if the move is a TT move The reduction formula currently decreases by 1 if the move is a TT move. This changes this by just setting the reduction to 0 instead. Passed STC: LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 83136 W: 21145 L: 20758 D: 41233 Ptnml(0-2): 279, 9772, 21090, 10137, 290 https://tests.stockfishchess.org/tests/view/653c0fbacc309ae839561584 Passed LTC: LLR: 2.96 (-2.94,2.94) <0.50,2.50> Total: 273150 W: 67987 L: 67171 D: 137992 Ptnml(0-2): 155, 30730, 73966, 31592, 132 https://tests.stockfishchess.org/tests/view/653d9d02cc309ae839562fdf closes https://github.com/official-stockfish/Stockfish/pull/4863 bench: 1110556
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