Dev Builds » 20221208-1941

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 07:01:27 584512 4016 1120 941 1955 +15.5 ± 5.19 7 363 1083 554 1 +32.1 ± 10.31
ncm-dbt-02 07:01:40 586857 4016 1144 910 1962 +20.27 ± 5.15 6 335 1088 577 2 +41.37 ± 10.27
ncm-dbt-03 07:00:24 587241 3970 1098 887 1985 +18.48 ± 5.19 4 347 1069 564 1 +37.6 ± 10.37
ncm-dbt-04 07:00:38 571391 4014 1092 922 2000 +14.72 ± 5.2 3 378 1076 546 4 +29.33 ± 10.35
ncm-dbt-05 07:01:40 584362 3984 1121 921 1942 +17.46 ± 5.2 3 359 1067 561 2 +35.18 ± 10.39
20000 5575 4581 9844 +17.28 ± 2.32 23 1782 5383 2802 10 +35.11 ± 4.62

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
395892 ncm-dbt-04 572074 14 3 2 9 +24.82 ± 45.76 0 0 6 1 0 +49.92 ± 94.39 ↓
395891 ncm-dbt-02 586816 16 5 2 9 +65.91 ± 89.0 0 1 3 4 0 +136.97 ± 241.58 ↓
395890 ncm-dbt-01 585674 16 6 3 7 +65.91 ± 89.0 0 1 3 4 0 +136.97 ± 241.58 ↓
395889 ncm-dbt-03 585843 470 136 106 228 +22.21 ± 15.0 0 40 125 70 0 +44.6 ± 30.43 ↓
395888 ncm-dbt-05 584369 484 123 111 250 +8.62 ± 15.26 2 47 130 63 0 +20.12 ± 29.85 ↓
395887 ncm-dbt-02 583196 500 139 124 237 +10.43 ± 13.65 0 43 149 58 0 +20.87 ± 27.41 ↓
395886 ncm-dbt-04 571310 500 109 118 273 -6.26 ± 14.6 0 61 138 50 1 -13.9 ± 28.89 ↓
395885 ncm-dbt-01 586943 500 130 116 254 +9.73 ± 14.51 1 47 139 63 0 +20.87 ± 28.75 ↓
395884 ncm-dbt-03 585970 500 143 121 236 +15.3 ± 14.19 1 41 143 65 0 +32.05 ± 28.2 ↓
395883 ncm-dbt-05 580406 500 140 123 237 +11.82 ± 14.04 0 44 146 59 1 +22.27 ± 27.81 ↓
395882 ncm-dbt-04 572517 500 133 118 249 +10.43 ± 14.44 0 49 137 64 0 +20.87 ± 29.01 ↓
395881 ncm-dbt-01 581943 500 149 121 230 +19.48 ± 14.65 2 39 138 71 0 +41.89 ± 28.84 ↓
395880 ncm-dbt-02 586858 500 139 127 234 +8.34 ± 14.65 0 52 134 64 0 +16.69 ± 29.4 ↓
395879 ncm-dbt-03 586943 500 130 107 263 +15.99 ± 15.14 2 45 131 72 0 +34.86 ± 29.77 ↓
395878 ncm-dbt-05 584453 500 139 116 245 +15.99 ± 15.26 0 51 126 72 1 +30.65 ± 30.41 ↓
395877 ncm-dbt-01 583698 500 145 119 236 +18.08 ± 15.05 1 46 129 74 0 +37.67 ± 30.03 ↓
395876 ncm-dbt-04 571913 500 149 112 239 +25.76 ± 15.95 3 41 124 80 2 +53.22 ± 30.66 ↓
395875 ncm-dbt-02 586139 500 138 114 248 +16.69 ± 14.17 0 43 140 67 0 +33.46 ± 28.6 ↓
395874 ncm-dbt-03 587537 500 138 115 247 +15.99 ± 14.76 0 48 131 71 0 +32.05 ± 29.77 ↓
395873 ncm-dbt-05 585506 500 153 118 229 +24.36 ± 14.63 0 42 131 77 0 +48.96 ± 29.75 ↓
395872 ncm-dbt-01 584453 500 138 110 252 +19.48 ± 15.03 0 48 126 76 0 +39.08 ± 30.41 ↓
395871 ncm-dbt-04 571351 500 135 118 247 +11.82 ± 15.43 0 56 121 73 0 +23.66 ± 31.02 ↓
395870 ncm-dbt-02 586774 500 131 112 257 +13.21 ± 14.8 2 44 137 67 0 +29.25 ± 29.0 ↓
395869 ncm-dbt-03 586985 500 121 106 273 +10.42 ± 14.18 0 46 144 59 1 +19.48 ± 28.09 ↓
395868 ncm-dbt-05 588004 500 140 115 245 +17.39 ± 13.83 0 40 145 65 0 +34.86 ± 27.92 ↓
395867 ncm-dbt-01 585717 500 145 110 245 +24.36 ± 14.88 2 38 133 77 0 +51.8 ± 29.48 ↓
395866 ncm-dbt-04 570869 500 142 112 246 +20.87 ± 13.97 0 39 142 69 0 +41.89 ± 28.3 ↓
395865 ncm-dbt-02 587240 500 158 99 243 +41.19 ± 15.08 0 36 120 93 1 +82.1 ± 31.18 ↓
395864 ncm-dbt-03 587664 500 151 116 233 +24.36 ± 14.76 0 43 129 78 0 +48.96 ± 30.01 ↓
395863 ncm-dbt-05 583279 500 150 110 240 +27.86 ± 15.0 1 40 127 82 0 +57.5 ± 30.27 ↓
395862 ncm-dbt-01 583112 500 133 133 234 -0.0 ± 14.42 0 56 138 56 0 -0.0 ± 28.89 ↓
395861 ncm-dbt-04 571913 500 131 103 266 +19.48 ± 14.26 0 42 138 70 0 +39.08 ± 28.85 ↓
395860 ncm-dbt-02 587664 500 151 125 224 +18.08 ± 14.67 3 37 141 69 0 +40.48 ± 28.44 ↓
395859 ncm-dbt-03 588899 500 141 104 255 +25.76 ± 14.86 1 40 130 79 0 +53.22 ± 29.88 ↓
395858 ncm-dbt-05 582110 500 135 109 256 +18.08 ± 14.29 0 43 138 69 0 +36.26 ± 28.86 ↓
395857 ncm-dbt-04 570749 500 142 123 235 +13.21 ± 15.05 0 51 130 68 1 +25.06 ± 29.91 ↓
395856 ncm-dbt-01 583992 500 138 103 259 +24.36 ± 14.63 1 39 134 76 0 +50.38 ± 29.35 ↓
395855 ncm-dbt-02 588941 500 145 111 244 +23.66 ± 14.58 0 41 135 73 1 +46.13 ± 29.23 ↓
395854 ncm-dbt-03 588089 500 138 112 250 +18.08 ± 14.42 0 44 136 70 0 +36.26 ± 29.12 ↓
395853 ncm-dbt-04 569829 500 148 116 236 +22.27 ± 14.08 0 39 140 71 0 +44.72 ± 28.57 ↓
395852 ncm-dbt-01 585084 500 136 126 238 +6.95 ± 14.27 0 49 143 57 1 +12.51 ± 28.23 ↓
395851 ncm-dbt-02 588089 500 138 96 266 +29.25 ± 14.84 1 38 129 82 0 +60.36 ± 30.0 ↓
395850 ncm-dbt-05 586774 500 141 119 240 +15.3 ± 15.21 0 52 124 74 0 +30.65 ± 30.66 ↓

Commit

Commit ID 98965c139df1483a3d684ee8bc7a60dc4b95efa1
Author FauziAkram
Date 2022-12-08 19:41:45 UTC
doEvenDeeperSearch + tuning Credit for the main idea of doEvenDeeperSearch goes to Vizvezdenec, tuning by FauziAkram: Expansion of existing logic of doDeeperSearch - if value from LMR is really really good do full depth search not 1 ply deeper but rather 2 instead. Passed STC: LLR: 2.93 (-2.94,2.94) <0.00,2.00> Total: 330048 W: 87672 L: 86942 D: 155434 Ptnml(0-2): 1012, 36739, 88912, 37229, 1132 https://tests.stockfishchess.org/tests/view/638a1cadd2b9c924c4c621d2 Passed LTC: LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 216696 W: 57891 L: 57240 D: 101565 Ptnml(0-2): 72, 21221, 65152, 21790, 113 https://tests.stockfishchess.org/tests/view/638c7d52a971f1f096c68fe2 closes https://github.com/official-stockfish/Stockfish/pull/4256 Bench: 3461830
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