Dev Builds » 20221003-0950

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 06:52:26 583820 4000 1120 925 1955 +16.95 ± 5.11 4 345 1106 542 3 +34.16 ± 10.17
ncm-dbt-02 06:52:50 586021 3988 1102 929 1957 +15.08 ± 5.13 6 351 1102 534 1 +31.1 ± 10.19
ncm-dbt-03 06:52:00 583891 4014 1121 957 1936 +14.2 ± 5.35 10 387 1043 563 4 +29.5 ± 10.53
ncm-dbt-04 06:53:03 569272 4016 1128 928 1960 +17.32 ± 5.18 7 347 1100 547 7 +34.72 ± 10.21
ncm-dbt-05 06:52:39 585025 3982 1128 954 1900 +15.19 ± 5.18 6 353 1100 525 7 +30.27 ± 10.2
20000 5599 4693 9708 +15.75 ± 2.32 33 1783 5451 2711 22 +31.95 ± 4.59

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
414857 ncm-dbt-03 584958 14 5 3 6 +49.96 ± 94.42 0 1 3 3 0 +102.11 ± 234.06 ↓
414856 ncm-dbt-04 570428 16 3 3 10 0.0 ± 86.96 0 2 4 2 0 -0.0 ± 186.24 ↓
414855 ncm-dbt-02 585337 488 132 127 229 +3.56 ± 14.84 2 48 137 57 0 +9.97 ± 28.93 ↓
414854 ncm-dbt-01 585590 500 133 112 255 +14.6 ± 14.91 0 49 132 68 1 +27.85 ± 29.65 ↓
414853 ncm-dbt-05 585126 482 137 111 234 +18.76 ± 14.68 1 38 137 64 1 +37.63 ± 28.83 ↓
414852 ncm-dbt-03 584622 500 130 113 257 +11.82 ± 14.81 2 45 137 66 0 +26.46 ± 29.0 ↓
414851 ncm-dbt-04 567244 500 149 113 238 +25.06 ± 14.93 0 43 129 77 1 +48.96 ± 30.01 ↓
414850 ncm-dbt-02 584579 500 129 119 252 +6.95 ± 13.05 0 41 158 51 0 +13.9 ± 26.16 ↓
414849 ncm-dbt-05 583992 500 144 121 235 +15.99 ± 14.89 3 40 138 69 0 +36.26 ± 28.86 ↓
414848 ncm-dbt-01 582819 500 142 117 241 +17.39 ± 14.1 1 39 144 66 0 +36.26 ± 28.05 ↓
414847 ncm-dbt-03 579744 500 140 118 242 +15.3 ± 15.57 1 51 124 73 1 +30.65 ± 30.66 ↓
414846 ncm-dbt-04 569310 500 135 114 251 +14.6 ± 15.28 2 46 132 69 1 +30.65 ± 29.65 ↓
414845 ncm-dbt-02 586520 500 144 111 245 +22.96 ± 13.87 0 37 143 70 0 +46.13 ± 28.15 ↓
414844 ncm-dbt-05 588345 500 138 128 234 +6.95 ± 14.66 1 48 143 56 2 +12.51 ± 28.23 ↓
414843 ncm-dbt-01 585506 500 141 107 252 +23.66 ± 13.92 0 37 142 71 0 +47.55 ± 28.28 ↓
414842 ncm-dbt-04 570789 500 146 103 251 +29.95 ± 15.02 0 40 129 79 2 +57.5 ± 30.0 ↓
414841 ncm-dbt-03 585759 500 136 119 245 +11.82 ± 15.31 2 47 135 64 2 +23.66 ± 29.27 ↓
414840 ncm-dbt-02 585928 500 135 114 251 +14.6 ± 15.28 2 47 129 72 0 +32.05 ± 30.03 ↓
414839 ncm-dbt-05 585843 500 142 129 229 +9.03 ± 15.08 0 54 130 65 1 +16.69 ± 29.91 ↓
414838 ncm-dbt-01 583614 500 142 107 251 +24.36 ± 14.24 0 38 140 71 1 +47.55 ± 28.56 ↓
414837 ncm-dbt-04 567958 500 145 129 226 +11.12 ± 14.75 1 47 138 63 1 +22.27 ± 28.88 ↓
414836 ncm-dbt-03 582945 500 145 123 232 +15.3 ± 15.33 2 47 128 73 0 +33.46 ± 30.16 ↓
414835 ncm-dbt-02 585674 500 145 128 227 +11.82 ± 15.55 1 54 122 73 0 +25.06 ± 30.9 ↓
414834 ncm-dbt-05 585548 500 151 108 241 +29.95 ± 14.5 0 37 134 78 1 +58.93 ± 29.33 ↓
414833 ncm-dbt-04 569470 500 129 104 267 +17.39 ± 13.96 2 35 149 64 0 +37.67 ± 27.35 ↓
414832 ncm-dbt-01 584958 500 150 113 237 +25.76 ± 13.81 0 35 143 72 0 +51.8 ± 28.13 ↓
414831 ncm-dbt-03 583489 500 143 122 235 +14.6 ± 15.4 1 50 127 71 1 +29.25 ± 30.28 ↓
414830 ncm-dbt-02 583908 500 139 108 253 +21.57 ± 13.89 0 38 143 69 0 +43.3 ± 28.16 ↓
414829 ncm-dbt-05 579702 500 139 108 253 +21.57 ± 13.89 0 37 146 66 1 +41.89 ± 27.75 ↓
414828 ncm-dbt-01 580157 500 143 121 236 +15.3 ± 14.84 0 49 130 71 0 +30.65 ± 29.9 ↓
414827 ncm-dbt-04 568912 500 139 122 239 +11.82 ± 14.43 1 45 140 64 0 +25.06 ± 28.61 ↓
414826 ncm-dbt-03 583363 500 141 107 252 +23.66 ± 14.83 0 44 128 78 0 +47.55 ± 30.15 ↓
414825 ncm-dbt-05 586943 500 139 127 234 +8.34 ± 15.27 0 56 127 66 1 +15.3 ± 30.28 ↓
414824 ncm-dbt-02 587622 500 153 112 235 +28.55 ± 14.14 0 35 140 74 1 +56.07 ± 28.52 ↓
414823 ncm-dbt-03 582987 500 147 122 231 +17.39 ± 15.24 2 45 129 74 0 +37.67 ± 30.03 ↓
414822 ncm-dbt-04 569470 500 145 114 241 +21.57 ± 14.68 0 44 131 75 0 +43.3 ± 29.76 ↓
414821 ncm-dbt-01 581610 500 135 122 243 +9.04 ± 15.45 1 55 124 70 0 +19.48 ± 30.66 ↓
414820 ncm-dbt-03 587155 500 134 130 236 +2.78 ± 14.8 0 57 132 61 0 +5.56 ± 29.66 ↓
414819 ncm-dbt-05 584706 500 138 122 240 +11.12 ± 14.11 1 43 145 61 0 +23.66 ± 27.95 ↓
414818 ncm-dbt-04 569869 500 137 126 237 +7.64 ± 14.33 1 45 148 54 2 +13.9 ± 27.56 ↓
414817 ncm-dbt-01 586308 500 134 126 240 +5.56 ± 14.15 2 43 151 53 1 +12.51 ± 27.15 ↓
414816 ncm-dbt-02 588600 500 125 110 265 +10.43 ± 15.07 1 51 130 68 0 +22.27 ± 29.91 ↓

Commit

Commit ID f436bf77ad2eb42228747d9aa58eeb7403e23d49
Author disservin
Date 2022-10-03 09:50:31 UTC
Use less reduction for escaping moves This patch reuses the threatenedPieces variable (which is calculated in movepicker) to reduce less in the search tree the moves which escape a capture. passed STC: LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 314352 W: 84042 L: 83328 D: 146982 Ptnml(0-2): 1105, 35084, 84207, 35552, 1228 https://tests.stockfishchess.org/tests/view/63355f37a004bed9a2e4a17f passed LTC: LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 90752 W: 24556 L: 24147 D: 42049 Ptnml(0-2): 59, 8855, 27123, 9296, 43 https://tests.stockfishchess.org/tests/view/63383a7735f43d649ff5fa8b closes https://github.com/official-stockfish/Stockfish/pull/4181 bench: 4114228
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