Dev Builds » 20230218-1234

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 06:59:24 583939 4000 1216 882 1902 +29.08 ± 5.09 3 289 1082 623 3 +58.57 ± 10.29
ncm-dbt-02 06:59:44 586226 4000 1169 870 1961 +26.02 ± 5.05 3 296 1103 595 3 +52.33 ± 10.17
ncm-dbt-03 06:59:50 586311 4000 1221 849 1930 +32.41 ± 5.23 5 294 1029 668 4 +65.56 ± 10.59
ncm-dbt-04 06:58:27 570515 4000 1164 831 2005 +28.99 ± 5.17 3 298 1071 619 9 +57.32 ± 10.35
ncm-dbt-05 07:00:18 582901 4000 1220 816 1964 +35.21 ± 5.12 4 265 1059 667 5 +70.98 ± 10.41
20000 5990 4248 9762 +30.34 ± 2.3 18 1442 5344 3172 24 +60.93 ± 4.63

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
394719 ncm-dbt-03 586943 500 144 105 251 +27.16 ± 15.32 1 41 128 78 2 +53.22 ± 30.14 ↓
394718 ncm-dbt-02 585928 500 141 110 249 +21.57 ± 14.42 1 39 138 72 0 +44.72 ± 28.84 ↓
394717 ncm-dbt-05 584958 500 146 95 259 +35.56 ± 14.48 0 35 129 86 0 +71.89 ± 29.97 ↓
394716 ncm-dbt-01 583279 500 158 104 238 +37.67 ± 14.48 1 30 134 84 1 +76.25 ± 29.26 ↓
394715 ncm-dbt-04 571310 500 160 101 239 +41.19 ± 14.43 0 28 139 79 4 +77.71 ± 28.54 ↓
394714 ncm-dbt-02 586901 500 159 116 225 +29.95 ± 13.28 0 29 149 72 0 +60.36 ± 27.22 ↓
394713 ncm-dbt-03 586943 500 153 118 229 +24.36 ± 14.63 1 39 134 76 0 +50.38 ± 29.35 ↓
394712 ncm-dbt-01 581569 500 156 102 242 +37.67 ± 14.74 0 35 127 87 1 +74.79 ± 30.24 ↓
394711 ncm-dbt-04 571431 500 148 108 244 +27.85 ± 14.09 0 34 144 70 2 +53.22 ± 27.98 ↓
394710 ncm-dbt-05 581818 500 147 109 244 +26.45 ± 14.65 0 40 133 76 1 +51.8 ± 29.48 ↓
394709 ncm-dbt-03 585548 500 170 109 221 +42.6 ± 13.98 0 28 133 89 0 +86.52 ± 29.35 ↓
394708 ncm-dbt-02 583363 500 139 109 252 +20.87 ± 14.63 0 44 132 74 0 +41.89 ± 29.63 ↓
394707 ncm-dbt-04 571632 500 135 96 269 +27.15 ± 13.77 0 34 143 73 0 +54.65 ± 28.11 ↓
394706 ncm-dbt-01 585042 500 151 113 236 +26.46 ± 13.44 0 32 148 70 0 +53.22 ± 27.41 ↓
394705 ncm-dbt-05 583908 500 152 102 246 +34.86 ± 15.45 2 36 123 88 1 +71.89 ± 30.78 ↓
394704 ncm-dbt-03 583824 500 154 92 254 +43.3 ± 14.82 0 33 123 93 1 +86.52 ± 30.76 ↓
394703 ncm-dbt-02 588004 500 147 107 246 +27.85 ± 14.62 0 40 130 80 0 +56.07 ± 29.87 ↓
394702 ncm-dbt-05 580862 500 159 96 245 +44.01 ± 15.37 1 34 117 97 1 +89.48 ± 31.58 ↓
394701 ncm-dbt-04 569470 500 150 105 245 +31.36 ± 14.85 2 34 131 83 0 +66.1 ± 29.72 ↓
394700 ncm-dbt-01 584790 500 159 120 221 +27.15 ± 14.31 0 38 135 77 0 +54.65 ± 29.21 ↓
394699 ncm-dbt-03 584916 500 157 107 236 +34.86 ± 14.83 0 38 124 88 0 +70.44 ± 30.65 ↓
394698 ncm-dbt-05 580530 500 154 101 245 +36.97 ± 13.49 0 26 146 77 1 +73.34 ± 27.55 ↓
394697 ncm-dbt-01 586435 500 150 114 236 +25.06 ± 14.02 0 37 140 73 0 +50.38 ± 28.55 ↓
394696 ncm-dbt-02 587622 500 141 103 256 +26.46 ± 14.39 2 33 140 75 0 +56.07 ± 28.52 ↓
394695 ncm-dbt-04 569390 500 140 104 256 +25.06 ± 14.93 0 43 129 77 1 +48.96 ± 30.01 ↓
394694 ncm-dbt-02 585885 500 160 113 227 +32.76 ± 13.76 0 31 141 78 0 +66.1 ± 28.33 ↓
394693 ncm-dbt-03 587367 500 162 104 234 +40.49 ± 14.65 1 31 127 91 0 +83.57 ± 30.21 ↓
394692 ncm-dbt-01 581610 500 141 105 254 +25.06 ± 15.06 2 39 130 79 0 +53.22 ± 29.88 ↓
394691 ncm-dbt-04 570749 500 145 98 257 +32.75 ± 15.44 0 43 118 88 1 +64.66 ± 31.43 ↓
394690 ncm-dbt-05 583447 500 149 111 240 +26.46 ± 14.39 1 36 137 76 0 +54.65 ± 28.94 ↓
394689 ncm-dbt-02 585211 500 134 107 259 +18.78 ± 14.85 0 45 135 68 2 +34.86 ± 29.25 ↓
394688 ncm-dbt-03 587919 500 139 107 254 +22.27 ± 14.35 0 41 136 73 0 +44.72 ± 29.1 ↓
394687 ncm-dbt-04 571471 500 140 112 248 +19.48 ± 14.39 0 43 136 71 0 +39.08 ± 29.11 ↓
394686 ncm-dbt-01 586308 500 144 116 240 +19.48 ± 14.52 0 44 134 72 0 +39.08 ± 29.38 ↓
394685 ncm-dbt-05 583950 500 151 105 244 +32.05 ± 14.12 0 33 139 77 1 +63.23 ± 28.63 ↓
394684 ncm-dbt-03 587028 500 142 107 251 +24.36 ± 15.62 2 43 124 80 1 +50.38 ± 30.66 ↓
394683 ncm-dbt-02 586901 500 148 105 247 +29.95 ± 14.24 0 35 138 76 1 +58.93 ± 28.79 ↓
394682 ncm-dbt-05 583740 500 162 97 241 +45.42 ± 13.73 0 25 135 90 0 +92.46 ± 29.02 ↓
394681 ncm-dbt-01 582485 500 157 108 235 +34.16 ± 14.39 0 34 134 81 1 +67.55 ± 29.3 ↓
394680 ncm-dbt-04 568673 500 146 107 247 +27.16 ± 14.95 1 39 131 78 1 +54.65 ± 29.74 ↓

Commit

Commit ID 085cace4574bf561472d8d3d3afe50c2c536b4e3
Author Dubslow
Date 2023-02-18 12:34:40 UTC
Simplify late countermove bonus condition STC: https://tests.stockfishchess.org/tests/view/63d53ac6a67dd929a555e1e2 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 216096 W: 56862 L: 56839 D: 102395 Ptnml(0-2): 648, 24033, 58650, 24082, 635 LTC: https://tests.stockfishchess.org/tests/view/63d7f9a6a67dd929a5565991 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 808512 W: 214060 L: 214610 D: 379842 Ptnml(0-2): 301, 79448, 245293, 78928, 286 closes https://github.com/official-stockfish/Stockfish/pull/4392 Bench: 4283297
Copyright 2011–2025 Next Chess Move LLC
Feedback & Support Terms of Service Privacy Policy Desktop Version