Dev Builds » 20230412-1838

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 06:57:49 582818 4004 1254 854 1896 +34.83 ± 5.06 3 260 1078 656 5 +70.0 ± 10.3
ncm-dbt-02 06:56:48 586204 4000 1245 790 1965 +39.69 ± 5.14 4 255 1025 714 2 +80.82 ± 10.6
ncm-dbt-03 06:57:24 586855 3980 1227 774 1979 +39.72 ± 5.17 4 247 1041 688 10 +79.4 ± 10.5
ncm-dbt-04 06:58:01 571925 4016 1275 823 1918 +39.27 ± 5.04 6 232 1079 686 5 +79.75 ± 10.28
ncm-dbt-05 06:57:03 584085 4000 1232 770 1998 +40.31 ± 5.03 1 240 1060 694 5 +81.0 ± 10.39
20000 6233 4011 9756 +38.76 ± 2.28 18 1234 5283 3438 27 +78.18 ± 4.66

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
409292 ncm-dbt-01 583656 4 2 1 1 +88.51 ± 137.63 0 0 1 1 0 +190.5 ± 634.21 ↓
409291 ncm-dbt-04 571712 16 5 5 6 0.0 ± 86.96 0 2 4 2 0 -0.0 ± 186.24 ↓
409290 ncm-dbt-03 586308 480 148 104 228 +31.94 ± 15.68 1 38 118 82 1 +64.42 ± 31.43 ↓
409289 ncm-dbt-02 586562 500 148 92 260 +39.08 ± 14.04 0 30 134 86 0 +79.17 ± 29.25 ↓
409288 ncm-dbt-05 586223 500 156 94 250 +43.3 ± 14.29 0 30 128 92 0 +88.0 ± 30.06 ↓
409287 ncm-dbt-01 584537 500 155 118 227 +25.76 ± 15.35 1 43 125 80 1 +51.8 ± 30.53 ↓
409286 ncm-dbt-04 573204 500 154 92 254 +43.3 ± 14.29 0 30 128 92 0 +88.0 ± 30.06 ↓
409285 ncm-dbt-03 584369 500 150 92 258 +40.48 ± 15.42 0 40 112 98 0 +82.1 ± 32.23 ↓
409284 ncm-dbt-02 586774 500 147 100 253 +32.76 ± 14.95 2 34 129 85 0 +68.99 ± 29.98 ↓
409283 ncm-dbt-05 583112 500 158 96 246 +43.3 ± 13.88 0 26 137 86 1 +86.52 ± 28.77 ↓
409282 ncm-dbt-01 581569 500 153 107 240 +32.05 ± 13.43 0 28 149 72 1 +63.23 ± 27.19 ↓
409281 ncm-dbt-04 571110 500 170 108 222 +43.3 ± 13.74 0 26 136 88 0 +88.0 ± 28.9 ↓
409280 ncm-dbt-03 587028 500 162 88 250 +51.8 ± 14.22 0 24 130 94 2 +102.97 ± 29.68 ↓
409279 ncm-dbt-01 581527 500 149 101 250 +33.46 ± 14.48 1 33 133 83 0 +68.99 ± 29.43 ↓
409278 ncm-dbt-05 579951 500 147 107 246 +27.85 ± 14.23 0 37 136 77 0 +56.07 ± 29.07 ↓
409277 ncm-dbt-02 585379 500 162 92 246 +48.96 ± 14.74 0 31 118 101 0 +99.95 ± 31.44 ↓
409276 ncm-dbt-04 569909 500 161 102 237 +41.19 ± 14.57 1 30 128 91 0 +85.04 ± 30.07 ↓
409275 ncm-dbt-03 586816 500 154 105 241 +34.16 ± 13.72 0 28 147 73 2 +66.1 ± 27.46 ↓
409274 ncm-dbt-01 582193 500 155 108 237 +32.75 ± 14.3 0 33 139 76 2 +63.23 ± 28.63 ↓
409273 ncm-dbt-05 587197 500 162 96 242 +46.13 ± 14.45 0 30 124 96 0 +93.95 ± 30.6 ↓
409272 ncm-dbt-02 584664 500 151 99 250 +36.26 ± 13.86 0 30 138 82 0 +73.34 ± 28.71 ↓
409271 ncm-dbt-04 571511 500 150 108 242 +29.25 ± 13.65 0 31 147 71 1 +57.5 ± 27.53 ↓
409270 ncm-dbt-03 588387 500 147 83 270 +44.72 ± 14.37 0 27 135 85 3 +86.52 ± 29.06 ↓
409269 ncm-dbt-01 584159 500 162 109 229 +36.97 ± 14.96 1 34 127 87 1 +74.79 ± 30.24 ↓
409268 ncm-dbt-05 583070 500 156 102 242 +37.67 ± 13.67 0 27 143 79 1 +74.79 ± 27.98 ↓
409267 ncm-dbt-02 588345 500 163 104 233 +41.19 ± 14.3 0 31 129 90 0 +83.57 ± 29.93 ↓
409266 ncm-dbt-04 570469 500 149 107 244 +29.25 ± 13.92 0 34 140 76 0 +58.93 ± 28.51 ↓
409265 ncm-dbt-03 587325 500 149 104 247 +31.35 ± 14.2 1 30 144 73 2 +61.79 ± 27.93 ↓
409264 ncm-dbt-01 584537 500 161 120 219 +28.55 ± 14.14 0 36 137 77 0 +57.5 ± 28.93 ↓
409263 ncm-dbt-05 580116 500 154 94 252 +41.89 ± 13.94 0 28 134 88 0 +85.04 ± 29.21 ↓
409262 ncm-dbt-02 586223 500 155 100 245 +38.37 ± 14.79 1 33 126 90 0 +79.17 ± 30.36 ↓
409261 ncm-dbt-04 571712 500 170 98 232 +50.38 ± 14.41 1 23 131 93 2 +101.46 ± 29.54 ↓
409260 ncm-dbt-03 587877 500 165 96 239 +48.25 ± 14.43 0 29 123 98 0 +98.44 ± 30.73 ↓
409259 ncm-dbt-01 579826 500 165 100 235 +45.42 ± 13.73 0 25 135 90 0 +92.46 ± 29.02 ↓
409258 ncm-dbt-02 585253 500 172 99 229 +51.09 ± 15.11 1 29 117 102 1 +104.49 ± 31.58 ↓
409257 ncm-dbt-05 588600 500 149 95 256 +37.67 ± 14.74 0 34 130 84 2 +73.34 ± 29.83 ↓
409256 ncm-dbt-04 573123 500 161 92 247 +48.25 ± 14.3 2 21 134 92 1 +99.95 ± 29.1 ↓
409255 ncm-dbt-03 586731 500 152 102 246 +34.86 ± 14.7 2 31 132 85 0 +73.34 ± 29.56 ↓
409254 ncm-dbt-02 586435 500 147 104 249 +29.95 ± 14.5 0 37 134 78 1 +58.93 ± 29.33 ↓
409253 ncm-dbt-01 583363 500 152 90 258 +43.3 ± 14.02 0 28 132 90 0 +88.0 ± 29.49 ↓
409252 ncm-dbt-05 584411 500 150 86 264 +44.72 ± 14.64 1 28 128 92 1 +90.97 ± 30.05 ↓
409251 ncm-dbt-04 574581 500 155 111 234 +30.65 ± 15.06 2 35 131 81 1 +63.23 ± 29.72 ↓

Commit

Commit ID 4ad2713e19cbf8db1e588c4d24d1fe4af5c6e917
Author peregrineshahin
Date 2023-04-12 18:38:43 UTC
Fix capturing underpromotions issue Fix underpromotion captures are generated amongst quiets although dealt with as a capture_stage in search, this makes not skipping them when move count pruning kicks-in consistent with updating their histories amongst captures. Passed STC: https://tests.stockfishchess.org/tests/view/6415579f65775d3b539e7537 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 118896 W: 31678 L: 31553 D: 55665 Ptnml(0-2): 356, 12911, 32793, 13028, 360 Passed LTC: https://tests.stockfishchess.org/tests/view/641633b965775d3b539e9e95 LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 126800 W: 34255 L: 34148 D: 58397 Ptnml(0-2): 57, 12216, 38763, 12291, 73 see also discussion in https://github.com/official-stockfish/Stockfish/pull/4436 closes https://github.com/official-stockfish/Stockfish/pull/4452 bench: 3979409
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