Dev Builds » 20231230-0957

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 06:55:37 582592 4016 1458 662 1896 +69.79 ± 4.96 3 135 944 915 11 +144.07 ± 11.02
ncm-dbt-02 06:54:39 587454 3992 1410 643 1939 +67.59 ± 5.09 3 162 902 923 6 +140.12 ± 11.32
ncm-dbt-03 06:53:50 584687 4000 1415 626 1959 +69.44 ± 4.9 0 137 943 914 6 +143.69 ± 11.02
ncm-dbt-04 06:54:12 567340 3992 1383 657 1952 +63.9 ± 5.07 5 155 957 867 12 +131.03 ± 10.95
ncm-dbt-05 06:54:46 578817 4000 1411 674 1915 +64.75 ± 5.03 2 160 945 885 8 +133.14 ± 11.04
20000 7077 3262 9661 +67.1 ± 2.24 13 749 4691 4504 43 +138.39 ± 4.95

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
421094 ncm-dbt-01 584832 16 6 1 9 +112.26 ± 65.75 0 0 3 5 0 +254.61 ± 287.37
421093 ncm-dbt-02 587409 492 171 77 244 +67.21 ± 13.94 0 18 116 112 0 +139.85 ± 31.56
421092 ncm-dbt-04 567958 492 167 75 250 +65.74 ± 13.73 0 15 126 103 2 +133.29 ± 29.93
421091 ncm-dbt-05 578054 500 176 70 254 +74.79 ± 13.16 0 12 120 118 0 +157.24 ± 30.75
421090 ncm-dbt-03 585464 500 171 85 244 +60.36 ± 13.5 0 17 131 101 1 +123.02 ± 29.33
421089 ncm-dbt-01 581735 500 181 89 230 +64.66 ± 13.83 1 15 126 107 1 +134.15 ± 30.02
421088 ncm-dbt-04 566691 500 171 88 241 +58.21 ± 13.97 1 18 129 101 1 +119.89 ± 29.69
421087 ncm-dbt-02 586646 500 181 78 241 +72.61 ± 15.1 1 22 101 125 1 +152.18 ± 34.03
421086 ncm-dbt-05 578836 500 167 81 252 +60.36 ± 15.15 1 26 110 112 1 +124.6 ± 32.59
421085 ncm-dbt-03 583656 500 180 67 253 +79.9 ± 13.77 0 15 107 128 0 +169.27 ± 32.98
421084 ncm-dbt-01 584453 500 183 76 241 +75.52 ± 14.51 0 18 110 119 3 +153.86 ± 32.54
421083 ncm-dbt-02 586054 500 171 75 254 +67.54 ± 14.51 0 22 111 116 1 +138.99 ± 32.43
421082 ncm-dbt-04 567324 500 174 86 240 +61.79 ± 14.13 1 18 124 106 1 +127.76 ± 30.41
421081 ncm-dbt-03 584790 500 183 84 233 +69.71 ± 14.73 0 22 109 117 2 +142.26 ± 32.74
421080 ncm-dbt-05 584201 500 186 91 223 +66.82 ± 14.06 0 19 118 112 1 +137.37 ± 31.31
421079 ncm-dbt-01 583824 500 189 83 228 +74.79 ± 13.76 0 15 115 119 1 +155.54 ± 31.67
421078 ncm-dbt-02 587282 500 175 80 245 +66.82 ± 13.48 0 16 123 111 0 +138.99 ± 30.46
421077 ncm-dbt-04 567244 500 160 82 258 +54.65 ± 14.63 0 28 116 106 0 +112.14 ± 31.71
421076 ncm-dbt-05 584327 500 184 93 223 +63.94 ± 14.37 0 22 116 111 1 +130.94 ± 31.66
421075 ncm-dbt-03 582903 500 183 76 241 +75.52 ± 13.34 0 13 117 120 0 +158.93 ± 31.27
421074 ncm-dbt-01 583614 500 174 81 245 +65.39 ± 14.14 1 18 118 113 0 +137.37 ± 31.31
421073 ncm-dbt-04 566178 500 179 85 236 +66.1 ± 14.45 0 21 116 111 2 +134.15 ± 31.65
421072 ncm-dbt-02 587113 500 181 79 240 +71.88 ± 14.53 0 19 113 115 3 +145.54 ± 32.08
421071 ncm-dbt-05 575924 500 174 73 253 +71.16 ± 13.64 0 15 120 114 1 +147.19 ± 30.88
421070 ncm-dbt-03 586181 500 181 74 245 +75.52 ± 13.64 0 14 116 119 1 +157.24 ± 31.47
421069 ncm-dbt-01 578877 500 179 78 243 +71.16 ± 15.05 0 24 103 121 2 +145.54 ± 33.69
421068 ncm-dbt-04 567482 500 178 63 259 +81.37 ± 14.25 1 11 114 120 4 +167.53 ± 31.71
421067 ncm-dbt-02 587707 500 173 85 242 +61.79 ± 13.85 0 20 122 108 0 +127.76 ± 30.73
421066 ncm-dbt-05 572759 500 177 82 241 +66.82 ± 14.34 0 20 117 111 2 +135.76 ± 31.48
421065 ncm-dbt-03 583531 500 181 93 226 +61.79 ± 13.71 0 19 124 107 0 +127.76 ± 30.41
421064 ncm-dbt-01 582903 500 177 93 230 +58.93 ± 14.15 1 19 126 103 1 +121.46 ± 30.15
421063 ncm-dbt-04 566296 500 176 90 234 +60.36 ± 14.35 0 23 119 107 1 +123.02 ± 31.23
421062 ncm-dbt-02 587070 500 176 92 232 +58.93 ± 15.73 2 28 105 114 1 +123.02 ± 33.32
421061 ncm-dbt-05 577233 500 173 96 231 +53.93 ± 13.62 0 20 134 95 1 +109.07 ± 29.01
421060 ncm-dbt-01 581652 500 191 82 227 +76.97 ± 13.68 0 13 117 118 2 +158.93 ± 31.27
421059 ncm-dbt-03 584076 500 156 69 275 +61.07 ± 13.82 0 20 123 107 0 +126.18 ± 30.59
421058 ncm-dbt-04 569549 500 178 88 234 +63.23 ± 15.01 2 21 113 113 1 +132.54 ± 32.13
421057 ncm-dbt-02 590353 500 182 77 241 +74.06 ± 13.89 0 17 111 122 0 +155.54 ± 32.36
421056 ncm-dbt-05 579207 500 174 88 238 +60.36 ± 15.15 1 26 110 112 1 +124.6 ± 32.59
421055 ncm-dbt-03 586901 500 180 78 242 +71.88 ± 14.1 0 17 116 115 2 +147.19 ± 31.57
421054 ncm-dbt-01 581444 500 178 79 243 +69.71 ± 13.29 0 13 126 110 1 +143.89 ± 29.88

Commit

Commit ID 3f5adc037e14e40d1e0e1380e3e7c5884ca528ed
Author peregrineshahin
Date 2023-12-30 09:57:48 UTC
Fix wrong mate/tb scores from probCut This fixes returning wrong mated-in scores, or losing a proven mate-in score from probCut after recent tweaks. The issue reported by @cj5716 on discord. Passed non-reg STC: https://tests.stockfishchess.org/tests/view/6583c36b5457644dc9843afe LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 295936 W: 75011 L: 75075 D: 145850 Ptnml(0-2): 978, 33947, 78146, 33955, 942 Passed non-reg LTC: https://tests.stockfishchess.org/tests/view/658513075457644dc98451cd LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 55932 W: 13970 L: 13786 D: 28176 Ptnml(0-2): 33, 5933, 15837, 6143, 20 closes https://github.com/official-stockfish/Stockfish/pull/4933 Bench: 1308739
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