Dev Builds » 20240126-1940

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 06:55:11 584316 4000 1475 622 1903 +75.25 ± 4.94 0 127 905 956 12 +155.76 ± 11.27
ncm-dbt-02 06:58:01 586340 4016 1431 590 1995 +73.85 ± 5.0 3 134 900 961 10 +153.58 ± 11.32
ncm-dbt-03 06:56:05 585755 4000 1430 601 1969 +73.06 ± 4.92 2 127 917 948 6 +152.39 ± 11.19
ncm-dbt-04 06:56:17 570800 4000 1412 606 1982 +70.98 ± 4.89 0 130 943 918 9 +146.57 ± 11.01
ncm-dbt-05 06:56:12 585397 3984 1438 597 1949 +74.46 ± 4.98 0 134 894 953 11 +154.14 ± 11.35
20000 7186 3016 9798 +73.52 ± 2.21 5 652 4559 4736 48 +152.48 ± 5.02

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
401291 ncm-dbt-02 588899 16 8 1 7 +162.9 ± 50.11 0 0 1 7 0 +470.09 ± 466.68
401290 ncm-dbt-05 585000 484 169 70 245 +72.08 ± 14.43 0 19 105 118 0 +150.97 ± 33.35
401289 ncm-dbt-03 585801 500 175 82 243 +65.38 ± 13.27 0 15 127 108 0 +135.76 ± 29.83
401288 ncm-dbt-04 572558 500 174 69 257 +74.06 ± 14.46 0 20 106 123 1 +153.86 ± 33.21
401287 ncm-dbt-01 584285 500 190 78 232 +79.17 ± 13.29 0 12 114 124 0 +167.53 ± 31.71
401286 ncm-dbt-02 587409 500 178 71 251 +75.52 ± 14.37 0 17 112 118 3 +153.86 ± 32.2
401285 ncm-dbt-05 586350 500 158 74 268 +58.93 ± 14.69 0 25 118 105 2 +118.33 ± 31.4
401284 ncm-dbt-03 583782 500 193 73 234 +85.04 ± 12.97 0 7 118 123 2 +178.11 ± 30.75
401283 ncm-dbt-04 570388 500 166 80 254 +60.36 ± 13.05 0 15 134 101 0 +124.6 ± 28.81
401282 ncm-dbt-01 585928 500 178 71 251 +75.52 ± 14.51 0 20 104 125 1 +157.24 ± 33.54
401281 ncm-dbt-02 585169 500 179 83 238 +67.55 ± 13.51 0 16 122 112 0 +140.62 ± 30.61
401280 ncm-dbt-05 587707 500 177 70 253 +75.52 ± 14.08 0 16 113 119 2 +155.54 ± 32.01
401279 ncm-dbt-03 585928 500 171 79 250 +64.66 ± 14.26 0 22 114 114 0 +134.15 ± 31.97
401278 ncm-dbt-01 584958 500 189 80 231 +76.97 ± 13.23 0 11 120 118 1 +160.64 ± 30.7
401277 ncm-dbt-04 570428 500 174 88 238 +60.36 ± 13.64 0 18 129 102 1 +123.02 ± 29.65
401276 ncm-dbt-02 589240 500 181 60 259 +85.78 ± 14.79 0 19 93 136 2 +179.9 ± 35.49
401275 ncm-dbt-05 587749 500 177 73 250 +73.33 ± 14.01 0 16 116 116 2 +150.51 ± 31.54
401274 ncm-dbt-03 587325 500 180 69 251 +78.44 ± 13.88 0 16 107 127 0 +165.8 ± 33.0
401273 ncm-dbt-01 580406 500 179 81 240 +68.99 ± 14.14 0 19 115 115 1 +142.26 ± 31.77
401272 ncm-dbt-04 570869 500 194 64 242 +92.45 ± 12.44 0 5 110 135 0 +200.24 ± 31.93
401271 ncm-dbt-02 585000 500 168 71 261 +68.27 ± 14.54 1 19 113 116 1 +142.26 ± 32.1
401270 ncm-dbt-05 585295 500 195 75 230 +85.04 ± 14.35 0 16 100 132 2 +178.11 ± 34.22
401269 ncm-dbt-03 585548 500 180 68 252 +79.17 ± 13.9 0 16 106 128 0 +167.53 ± 33.17
401268 ncm-dbt-01 584748 500 183 76 241 +75.52 ± 13.64 0 13 119 116 2 +155.54 ± 30.96
401267 ncm-dbt-04 569829 500 176 80 244 +67.54 ± 13.95 0 17 122 109 2 +137.37 ± 30.65
401266 ncm-dbt-02 585717 500 187 78 235 +76.98 ± 14.13 1 15 108 126 0 +164.07 ± 32.83
401265 ncm-dbt-05 586604 500 173 86 241 +61.07 ± 13.53 0 18 127 105 0 +126.18 ± 29.94
401264 ncm-dbt-03 585126 500 178 82 240 +67.55 ± 14.23 0 21 112 117 0 +140.62 ± 32.26
401263 ncm-dbt-01 585506 500 184 68 248 +82.1 ± 14.13 0 16 103 130 1 +172.78 ± 33.69
401262 ncm-dbt-04 572114 500 179 71 250 +76.25 ± 14.1 0 18 106 126 0 +160.64 ± 33.2
401261 ncm-dbt-02 586139 500 179 75 246 +73.33 ± 13.42 0 13 121 115 1 +152.18 ± 30.64
401260 ncm-dbt-01 583950 500 182 82 236 +70.43 ± 14.2 0 17 119 111 3 +142.26 ± 31.1
401259 ncm-dbt-03 585759 500 174 76 250 +68.99 ± 14.14 0 18 118 112 2 +140.62 ± 31.28
401258 ncm-dbt-05 582736 500 197 75 228 +86.52 ± 13.78 0 11 109 127 3 +179.9 ± 32.5
401257 ncm-dbt-04 569829 500 166 72 262 +66.1 ± 13.89 0 17 124 107 2 +134.15 ± 30.35
401256 ncm-dbt-02 584369 500 170 76 254 +66.1 ± 14.59 1 19 117 111 2 +135.76 ± 31.48
401255 ncm-dbt-01 584748 500 190 86 224 +73.33 ± 14.58 0 19 111 117 3 +148.85 ± 32.4
401254 ncm-dbt-05 581735 500 192 74 234 +83.57 ± 13.56 0 13 106 131 0 +178.11 ± 33.1
401253 ncm-dbt-03 586774 500 179 72 249 +75.52 ± 14.37 2 12 115 119 2 +158.93 ± 31.63
401252 ncm-dbt-04 570388 500 183 82 235 +71.16 ± 14.64 0 20 112 115 3 +143.89 ± 32.25
401251 ncm-dbt-02 585126 500 181 75 244 +74.79 ± 13.91 0 16 113 120 1 +155.54 ± 32.01

Commit

Commit ID 2b62c4452db5a02c5ed7d4a2b4c4cb1529fb82b7
Author FauziAkram
Date 2024-01-26 19:40:22 UTC
Remove redundant max operation on lmrDepth Removed a restriction that prohibited history heuristics sum in futility pruning to exceed some negative value. Passed STC: LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 279040 W: 71095 L: 71143 D: 136802 Ptnml(0-2): 949, 33574, 70474, 33622, 901 https://tests.stockfishchess.org/tests/view/65aaef4c79aa8af82b977631 Passed LTC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 75156 W: 18884 L: 18715 D: 37557 Ptnml(0-2): 52, 8445, 20408, 8628, 45 https://tests.stockfishchess.org/tests/view/65ae7ef3c865510db026abf5 closes https://github.com/official-stockfish/Stockfish/pull/5004 Bench: 1566543
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