Dev Builds » 20250519-0513

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 06:46:37 582649 4000 1633 428 1939 +108.02 ± 4.75 2 58 691 1231 18 +237.85 ± 12.93
ncm-dbt-02 06:46:08 585662 4000 1652 434 1914 +109.26 ± 4.74 0 64 671 1248 17 +241.1 ± 13.14
ncm-dbt-03 06:45:47 585086 4000 1628 442 1930 +106.2 ± 4.65 0 55 718 1213 14 +233.32 ± 12.66
ncm-dbt-04 06:45:37 568272 4000 1609 444 1947 +104.21 ± 4.65 0 56 736 1195 13 +228.08 ± 12.5
ncm-dbt-05 06:47:16 583183 4000 1602 447 1951 +103.26 ± 4.78 0 68 728 1185 19 +223.94 ± 12.59
20000 8124 2195 9681 +106.18 ± 2.11 2 301 3544 6072 81 +232.79 ± 5.7

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
414713 ncm-dbt-05 582694 500 195 56 249 +99.2 ± 13.35 0 7 100 140 3 +211.87 ± 33.93
414712 ncm-dbt-01 583028 500 206 56 238 +107.54 ± 13.23 0 8 85 156 1 +238.66 ± 37.17
414711 ncm-dbt-02 584790 500 209 52 239 +112.91 ± 13.73 0 10 75 163 2 +251.89 ± 39.67
414710 ncm-dbt-03 585759 500 205 54 241 +108.3 ± 12.53 0 4 92 153 1 +240.82 ± 35.35
414709 ncm-dbt-04 567839 500 201 62 237 +99.2 ± 14.15 0 9 99 136 6 +206.01 ± 34.24
414708 ncm-dbt-05 584748 500 202 47 251 +111.37 ± 13.39 0 6 87 153 4 +243.0 ± 36.62
414707 ncm-dbt-02 584201 500 215 54 231 +116.0 ± 13.02 0 5 82 160 3 +258.75 ± 37.76
414706 ncm-dbt-01 585548 500 205 52 243 +109.83 ± 12.88 0 6 86 157 1 +245.2 ± 36.85
414705 ncm-dbt-03 585295 500 209 54 237 +111.37 ± 13.05 0 6 85 157 2 +247.41 ± 37.09
414704 ncm-dbt-04 568951 500 204 58 238 +104.49 ± 12.53 0 5 94 151 0 +232.26 ± 35.0
414703 ncm-dbt-05 581028 500 204 63 233 +100.7 ± 14.47 0 14 84 149 3 +215.85 ± 37.4
414702 ncm-dbt-01 582068 500 203 51 246 +109.07 ± 14.21 1 8 83 154 4 +238.66 ± 37.66
414701 ncm-dbt-03 586520 500 201 46 253 +111.37 ± 12.87 0 5 87 156 2 +247.41 ± 36.56
414700 ncm-dbt-02 585337 500 211 55 234 +112.14 ± 13.04 0 7 81 161 1 +251.89 ± 38.11
414699 ncm-dbt-04 568315 500 205 49 246 +112.14 ± 12.69 0 5 85 159 1 +251.89 ± 37.03
414698 ncm-dbt-05 582778 500 201 63 236 +98.44 ± 13.51 0 9 96 143 2 +211.87 ± 34.83
414697 ncm-dbt-01 582611 500 206 63 231 +102.22 ± 13.04 0 5 100 142 3 +219.87 ± 33.78
414696 ncm-dbt-03 585801 500 209 61 230 +106.01 ± 13.05 0 8 86 156 0 +236.51 ± 36.93
414695 ncm-dbt-02 588387 500 190 70 240 +85.04 ± 13.6 0 13 104 133 0 +181.7 ± 33.45
414694 ncm-dbt-04 568355 500 192 54 254 +98.44 ± 13.67 0 12 88 150 0 +215.85 ± 36.55
414693 ncm-dbt-05 584076 500 196 52 252 +102.97 ± 13.54 0 8 93 146 3 +221.9 ± 35.4
414692 ncm-dbt-01 581693 500 193 58 249 +96.19 ± 13.32 0 9 98 142 1 +207.95 ± 34.43
414691 ncm-dbt-03 583740 500 198 59 243 +99.2 ± 13.67 0 10 93 145 2 +213.85 ± 35.47
414690 ncm-dbt-02 584117 500 200 56 244 +102.97 ± 13.87 0 13 80 157 0 +228.08 ± 38.34
414689 ncm-dbt-04 567086 500 194 54 252 +99.95 ± 13.36 0 9 93 147 1 +217.85 ± 35.44
414688 ncm-dbt-05 584537 500 197 59 244 +98.44 ± 14.14 0 12 91 144 3 +209.91 ± 35.92
414687 ncm-dbt-02 585126 500 205 46 249 +114.45 ± 12.49 0 4 84 161 1 +258.75 ± 37.2
414686 ncm-dbt-01 583237 500 215 51 234 +118.33 ± 13.17 1 4 77 166 2 +270.57 ± 39.07
414685 ncm-dbt-03 583950 500 200 56 244 +102.97 ± 13.21 0 7 94 147 2 +223.94 ± 35.14
414684 ncm-dbt-04 566454 500 213 62 225 +108.3 ± 12.88 0 6 88 155 1 +240.82 ± 36.39
414683 ncm-dbt-01 581319 500 211 50 239 +116.0 ± 13.71 0 8 77 161 4 +256.44 ± 39.15
414682 ncm-dbt-05 584579 500 202 60 238 +101.46 ± 13.37 0 9 91 149 1 +221.9 ± 35.86
414681 ncm-dbt-03 583908 500 201 49 250 +109.07 ± 13.23 0 8 83 158 1 +243.0 ± 37.64
414680 ncm-dbt-02 587664 500 210 48 242 +116.77 ± 13.88 0 7 80 157 6 +254.16 ± 38.36
414679 ncm-dbt-04 569390 500 196 55 249 +100.7 ± 13.36 0 7 98 142 3 +215.85 ± 34.33
414678 ncm-dbt-03 585717 500 205 63 232 +101.46 ± 13.53 0 7 98 141 4 +215.85 ± 34.33
414677 ncm-dbt-04 569789 500 204 50 246 +110.6 ± 12.34 0 3 91 155 1 +247.41 ± 35.47
414676 ncm-dbt-01 581693 500 194 47 259 +105.25 ± 13.72 0 10 85 153 2 +230.16 ± 37.2
414675 ncm-dbt-02 585674 500 212 53 235 +114.45 ± 13.21 0 5 85 156 4 +251.89 ± 37.03
414674 ncm-dbt-05 581028 500 205 47 248 +113.68 ± 12.12 0 3 86 161 0 +258.75 ± 36.62

Commit

Commit ID 6b7e05f0c5287179de25a0722f9eea0f87f64648
Author Shawn Xu
Date 2025-05-19 05:13:39 UTC
Simplify PCM TTMove Bonus Passed Non-regression STC: LLR: 2.97 (-2.94,2.94) <-1.75,0.25> Total: 114048 W: 29597 L: 29459 D: 54992 Ptnml(0-2): 315, 13619, 29045, 13703, 342 https://tests.stockfishchess.org/tests/view/681e83533629b02d74b17701 Passed Non-regression LTC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 61014 W: 15582 L: 15405 D: 30027 Ptnml(0-2): 25, 6485, 17307, 6668, 22 https://tests.stockfishchess.org/tests/view/68226b523629b02d74b17b89 closes https://github.com/official-stockfish/Stockfish/pull/6061 bench 2016566
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