Dev Builds » 20251101-1036

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 06:43:59 581050 4012 1655 436 1921 +109.01 ± 4.75 0 61 688 1234 23 +238.77 ± 12.97
ncm-dbt-02 06:43:14 584851 4000 1667 435 1898 +110.6 ± 4.67 0 51 686 1243 20 +244.1 ± 12.97
ncm-dbt-03 06:45:18 584508 4000 1671 454 1875 +109.16 ± 4.76 1 57 689 1230 23 +239.47 ± 12.95
ncm-dbt-04 06:45:36 565634 3992 1611 476 1905 +101.58 ± 4.85 1 76 723 1179 17 +220.18 ± 12.65
ncm-dbt-05 06:45:19 580762 3996 1655 448 1893 +108.32 ± 4.74 0 66 673 1245 14 +239.25 ± 13.12
20000 8259 2249 9492 +107.73 ± 2.13 2 311 3459 6131 97 +236.25 ± 5.78

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
438882 ncm-dbt-01 580779 12 5 2 5 +88.66 ± 75.75 0 0 3 3 0 +190.73 ± 238.47
438881 ncm-dbt-04 563236 492 199 62 231 +99.37 ± 14.61 1 11 87 144 3 +214.24 ± 36.76
438880 ncm-dbt-05 578794 496 202 56 238 +105.38 ± 13.29 0 7 90 149 2 +230.5 ± 35.98
438879 ncm-dbt-03 583614 500 190 57 253 +94.69 ± 13.62 0 10 99 139 2 +202.15 ± 34.28
438878 ncm-dbt-01 580447 500 200 46 254 +110.6 ± 14.06 0 9 83 153 5 +238.66 ± 37.66
438877 ncm-dbt-02 583572 500 203 57 240 +104.49 ± 12.88 0 7 90 153 0 +232.26 ± 35.99
438876 ncm-dbt-04 567720 500 200 54 246 +104.49 ± 13.55 0 9 88 151 2 +228.08 ± 36.51
438875 ncm-dbt-03 583992 500 203 55 242 +106.01 ± 13.39 0 7 91 149 3 +230.16 ± 35.78
438874 ncm-dbt-05 583656 500 206 45 249 +116.0 ± 12.29 0 4 81 165 0 +265.78 ± 37.95
438873 ncm-dbt-02 583279 500 209 52 239 +112.91 ± 12.86 0 6 82 161 1 +254.16 ± 37.82
438872 ncm-dbt-01 582193 500 216 59 225 +112.91 ± 14.22 0 10 78 157 5 +245.2 ± 38.89
438871 ncm-dbt-04 563197 500 197 53 250 +102.97 ± 13.21 0 8 91 150 1 +226.0 ± 35.82
438870 ncm-dbt-03 582945 500 217 52 231 +119.11 ± 12.99 0 5 78 164 3 +268.17 ± 38.8
438869 ncm-dbt-05 580945 500 213 61 226 +109.07 ± 13.23 0 7 86 155 2 +240.82 ± 36.9
438868 ncm-dbt-01 581569 500 196 60 244 +96.94 ± 13.49 0 10 95 144 1 +209.91 ± 35.06
438867 ncm-dbt-02 587494 500 204 46 250 +113.68 ± 13.38 0 5 87 153 5 +247.41 ± 36.56
438866 ncm-dbt-04 564057 500 203 55 242 +106.01 ± 13.39 0 8 88 152 2 +232.26 ± 36.48
438865 ncm-dbt-03 583824 500 207 57 236 +107.54 ± 13.56 0 9 84 155 2 +236.51 ± 37.42
438864 ncm-dbt-05 578177 500 214 65 221 +106.77 ± 13.56 0 9 85 154 2 +234.38 ± 37.19
438863 ncm-dbt-01 579537 500 211 50 239 +116.0 ± 13.02 0 5 82 160 3 +258.75 ± 37.76
438862 ncm-dbt-02 584243 500 204 50 246 +110.6 ± 13.22 0 5 90 151 4 +240.82 ± 35.87
438861 ncm-dbt-03 586477 500 212 73 215 +99.2 ± 13.51 1 6 98 143 2 +215.85 ± 34.33
438860 ncm-dbt-02 584958 500 212 52 236 +115.22 ± 13.03 0 4 86 156 4 +254.16 ± 36.71
438859 ncm-dbt-04 567720 500 202 60 238 +101.46 ± 14.17 0 13 84 151 2 +219.87 ± 37.42
438858 ncm-dbt-05 585000 500 205 55 240 +107.54 ± 13.89 0 11 80 157 2 +236.51 ± 38.38
438857 ncm-dbt-01 583992 500 208 65 227 +102.22 ± 13.37 0 8 93 147 2 +221.9 ± 35.4
438856 ncm-dbt-04 567997 500 201 70 229 +93.2 ± 13.12 0 8 104 137 1 +200.24 ± 33.24
438855 ncm-dbt-02 585717 500 205 68 227 +97.69 ± 12.84 0 7 99 144 0 +213.85 ± 34.13
438854 ncm-dbt-05 579702 500 200 61 239 +99.2 ± 13.83 0 12 88 149 1 +215.85 ± 36.55
438853 ncm-dbt-01 581402 500 216 52 232 +118.33 ± 12.63 0 6 74 170 0 +273.0 ± 39.95
438852 ncm-dbt-03 584748 500 207 40 253 +120.67 ± 13.15 0 6 74 167 3 +273.0 ± 39.95
438851 ncm-dbt-05 578877 500 209 61 230 +106.01 ± 13.72 0 10 84 154 2 +232.26 ± 37.43
438850 ncm-dbt-04 567720 500 207 57 236 +107.54 ± 13.73 0 8 88 150 4 +232.26 ± 36.48
438849 ncm-dbt-03 584243 500 210 55 235 +111.37 ± 13.39 0 7 84 156 3 +245.2 ± 37.37
438848 ncm-dbt-02 583196 500 208 52 240 +112.14 ± 13.22 0 8 79 162 1 +251.89 ± 38.63
438847 ncm-dbt-01 579001 500 197 55 248 +101.46 ± 13.2 0 6 99 142 3 +217.85 ± 34.06
438846 ncm-dbt-01 580530 500 206 47 247 +114.45 ± 13.55 0 7 81 158 4 +251.89 ± 38.11
438845 ncm-dbt-05 580945 500 206 44 250 +116.77 ± 13.19 0 6 79 162 3 +261.07 ± 38.58
438844 ncm-dbt-02 586350 500 222 58 220 +118.33 ± 14.03 0 9 73 163 5 +261.07 ± 40.24
438843 ncm-dbt-04 563431 500 202 65 233 +97.69 ± 13.82 0 11 93 144 2 +209.91 ± 35.49
438842 ncm-dbt-03 586223 500 225 65 210 +115.22 ± 13.72 0 7 81 157 5 +251.89 ± 38.11

Commit

Commit ID cd7880c030bc941a3014b4b9ea6a455b3a328c59
Author Shawn Xu
Date 2025-11-01 10:36:33 UTC
Simplify Corrhist Bonus Passed Non-regression STC: LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 187776 W: 48687 L: 48631 D: 90458 Ptnml(0-2): 570, 22327, 48090, 22279, 622 https://tests.stockfishchess.org/tests/view/68f58019637acd2a11e72233 Passed Non-regression LTC: LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 159378 W: 41027 L: 40946 D: 77405 Ptnml(0-2): 122, 17645, 44078, 17718, 126 https://tests.stockfishchess.org/tests/view/68fe7492637acd2a11e73090 closes https://github.com/official-stockfish/Stockfish/pull/6385 Bench: 2458738
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