Dev Builds » 20221219-1946

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 06:58:41 584455 4000 1140 912 1948 +19.83 ± 5.19 3 346 1077 568 6 +39.25 ± 10.34
ncm-dbt-02 06:59:02 585632 4000 1174 936 1890 +20.7 ± 5.29 6 352 1045 592 5 +41.72 ± 10.52
ncm-dbt-03 06:59:19 586933 3996 1153 919 1924 +20.37 ± 5.13 3 334 1091 566 4 +40.7 ± 10.25
ncm-dbt-04 06:58:54 570870 4008 1151 896 1961 +22.13 ± 5.1 4 314 1118 559 9 +43.57 ± 10.09
ncm-dbt-05 06:59:34 583821 3996 1155 900 1941 +22.2 ± 5.3 6 342 1049 593 8 +44.23 ± 10.49
20000 5773 4563 9664 +21.05 ± 2.33 22 1688 5380 2878 32 +41.89 ± 4.62

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
395065 ncm-dbt-04 569669 8 1 0 7 +43.58 ± 76.58 0 0 3 1 0 +88.62 ± 172.94 ↓
395064 ncm-dbt-05 578177 496 141 115 240 +18.23 ± 15.3 1 47 125 75 0 +37.98 ± 30.53 ↓
395063 ncm-dbt-03 586350 496 138 120 238 +12.62 ± 14.6 1 45 137 65 0 +26.67 ± 28.98 ↓
395062 ncm-dbt-01 585000 500 144 113 243 +21.57 ± 14.81 0 45 129 76 0 +43.3 ± 30.02 ↓
395061 ncm-dbt-02 586223 500 133 116 251 +11.82 ± 14.94 1 48 135 65 1 +23.66 ± 29.27 ↓
395060 ncm-dbt-04 570068 500 146 112 242 +23.66 ± 14.32 1 36 142 70 1 +47.55 ± 28.28 ↓
395059 ncm-dbt-03 586604 500 151 119 230 +22.27 ± 13.81 0 37 144 69 0 +44.72 ± 28.02 ↓
395058 ncm-dbt-05 585885 500 132 119 249 +9.04 ± 15.21 0 56 125 69 0 +18.08 ± 30.53 ↓
395057 ncm-dbt-02 587282 500 158 119 223 +27.16 ± 14.7 1 38 132 79 0 +56.07 ± 29.61 ↓
395056 ncm-dbt-01 585548 500 139 108 253 +21.57 ± 14.93 1 40 139 67 3 +40.48 ± 28.71 ↓
395055 ncm-dbt-04 572074 500 140 128 232 +8.34 ± 14.13 0 48 142 60 0 +16.69 ± 28.36 ↓
395054 ncm-dbt-01 586139 500 144 124 232 +13.9 ± 14.6 0 47 137 65 1 +26.46 ± 29.0 ↓
395053 ncm-dbt-05 586604 500 151 108 241 +29.95 ± 14.76 0 39 130 80 1 +58.93 ± 29.87 ↓
395052 ncm-dbt-02 585928 500 146 117 237 +20.18 ± 15.33 2 44 127 77 0 +43.3 ± 30.28 ↓
395051 ncm-dbt-03 587240 500 142 109 249 +22.96 ± 14.4 0 41 135 74 0 +46.13 ± 29.23 ↓
395050 ncm-dbt-04 571833 500 156 111 233 +31.35 ± 13.94 0 32 142 75 1 +61.79 ± 28.21 ↓
395049 ncm-dbt-01 583112 500 143 116 241 +18.78 ± 13.67 0 38 147 65 0 +37.67 ± 27.63 ↓
395048 ncm-dbt-03 588260 500 151 114 235 +25.76 ± 14.08 0 37 139 74 0 +51.8 ± 28.68 ↓
395047 ncm-dbt-05 582903 500 159 128 213 +21.57 ± 15.67 2 45 124 78 1 +44.72 ± 30.66 ↓
395046 ncm-dbt-04 571953 500 155 114 231 +28.55 ± 14.54 0 37 137 74 2 +54.65 ± 28.94 ↓
395045 ncm-dbt-02 581070 500 147 122 231 +17.38 ± 15.12 0 49 128 72 1 +33.46 ± 30.16 ↓
395044 ncm-dbt-01 583028 500 140 115 245 +17.38 ± 14.87 0 47 132 70 1 +33.46 ± 29.64 ↓
395043 ncm-dbt-03 587664 500 137 116 247 +14.6 ± 14.65 0 47 136 66 1 +27.85 ± 29.13 ↓
395042 ncm-dbt-04 570029 500 135 109 256 +18.08 ± 14.42 0 41 145 61 3 +32.05 ± 27.93 ↓
395041 ncm-dbt-02 586689 500 148 116 236 +22.26 ± 15.11 0 45 130 73 2 +41.89 ± 29.89 ↓
395040 ncm-dbt-05 581111 500 142 102 256 +27.85 ± 14.87 0 40 132 76 2 +53.22 ± 29.61 ↓
395039 ncm-dbt-01 583572 500 148 114 238 +23.66 ± 15.69 2 45 120 83 0 +50.38 ± 31.16 ↓
395038 ncm-dbt-03 587622 500 146 114 240 +22.27 ± 14.47 1 37 143 67 2 +43.3 ± 28.16 ↓
395037 ncm-dbt-04 571150 500 141 99 260 +29.25 ± 15.09 2 35 134 77 2 +58.93 ± 29.33 ↓
395036 ncm-dbt-05 586477 500 142 105 253 +25.76 ± 13.81 1 30 152 65 2 +50.38 ± 26.85 ↓
395035 ncm-dbt-02 586393 500 149 118 233 +21.57 ± 16.14 1 52 113 83 1 +43.3 ± 32.02 ↓
395034 ncm-dbt-03 586054 500 137 116 247 +14.6 ± 15.4 1 50 127 71 1 +29.25 ± 30.28 ↓
395033 ncm-dbt-01 583740 500 147 106 247 +28.55 ± 14.28 0 37 135 78 0 +57.5 ± 29.2 ↓
395032 ncm-dbt-04 570789 500 133 124 243 +6.26 ± 15.1 1 54 130 65 0 +13.9 ± 29.91 ↓
395031 ncm-dbt-02 585337 500 146 118 236 +19.48 ± 13.59 1 34 151 64 0 +40.48 ± 27.06 ↓
395030 ncm-dbt-05 585632 500 141 110 249 +21.57 ± 15.18 1 45 126 78 0 +44.72 ± 30.4 ↓
395029 ncm-dbt-03 585674 500 151 111 238 +27.85 ± 14.62 0 40 130 80 0 +56.07 ± 29.87 ↓
395028 ncm-dbt-04 570268 500 144 99 257 +31.35 ± 13.66 0 31 143 76 0 +63.23 ± 28.06 ↓
395027 ncm-dbt-05 583782 500 147 113 240 +23.66 ± 14.96 1 40 135 72 2 +46.13 ± 29.23 ↓
395026 ncm-dbt-02 586139 500 147 110 243 +25.76 ± 14.73 0 42 129 79 0 +51.8 ± 30.01 ↓
395025 ncm-dbt-01 585506 500 135 116 249 +13.21 ± 14.54 0 47 138 64 1 +25.06 ± 28.88 ↓

Commit

Commit ID c2d507005c51145211a7963af7c41026bd759d08
Author Alfredo Menezes
Date 2022-12-19 19:46:04 UTC
Sometimes do a reduced search if LMR is skipped If the node doesn't go through LMR and r is too big, reduce search depth by one ply. STC: LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 664888 W: 176375 L: 175169 D: 313344 Ptnml(0-2): 1965, 73754, 179851, 74858, 2016 https://tests.stockfishchess.org/tests/view/6399414c93ed41c57ede8fb8 LTC: LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 150784 W: 40553 L: 40031 D: 70200 Ptnml(0-2): 76, 14668, 45387, 15180, 81 https://tests.stockfishchess.org/tests/view/639dee6e11c576d919dc2b38 closes https://github.com/official-stockfish/Stockfish/pull/4290 Bench: 3727508
Copyright 2011–2025 Next Chess Move LLC
Feedback & Support Terms of Service Privacy Policy Desktop Version