Dev Builds » 20200809-1507

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 06:31:47 584271 4000 61 2563 1376 -255.01 ± 6.54 587 1328 85 0 0 -665.32 ± 37.46
ncm-dbt-02 06:31:48 585164 4000 74 2585 1341 -256.3 ± 6.85 615 1284 98 3 0 -629.43 ± 34.8
ncm-dbt-03 06:32:34 584731 3994 90 2578 1326 -253.55 ± 6.78 602 1284 111 0 0 -617.53 ± 32.65
ncm-dbt-04 06:32:33 567750 4000 75 2590 1335 -256.87 ± 6.82 617 1281 102 0 0 -632.89 ± 34.1
ncm-dbt-05 06:32:54 583534 4006 85 2596 1325 -255.76 ± 6.88 619 1274 109 1 0 -618.07 ± 32.97
20000 385 12912 6703 -255.5 ± 3.03 3040 6451 505 4 0 -631.85 ± 15.19

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
461918 ncm-dbt-05 584874 6 0 3 3 -190.46 ± 18.51 0 3 0 0 0 -1199.83 ± 276.48
461917 ncm-dbt-03 582485 494 14 308 172 -238.19 ± 17.64 62 170 15 0 0 -601.67 ± 95.9
461916 ncm-dbt-02 584453 500 9 322 169 -255.29 ± 18.66 74 165 11 0 0 -659.13 ± 116.77
461915 ncm-dbt-04 567958 500 7 331 162 -268.16 ± 20.54 86 152 12 0 0 -643.67 ± 110.29
461914 ncm-dbt-01 584537 500 5 320 175 -257.59 ± 18.12 73 169 8 0 0 -715.51 ± 146.53
461913 ncm-dbt-05 581985 500 17 329 154 -254.15 ± 20.81 82 148 20 0 0 -552.07 ± 80.89
461912 ncm-dbt-03 581943 500 8 318 174 -251.89 ± 17.4 68 174 8 0 0 -715.51 ± 146.53
461911 ncm-dbt-02 584748 500 11 317 172 -247.41 ± 18.44 70 166 14 0 0 -616.18 ± 100.06
461910 ncm-dbt-04 567047 500 9 334 157 -269.36 ± 20.41 86 153 11 0 0 -659.13 ± 116.77
461909 ncm-dbt-01 583908 500 6 327 167 -264.59 ± 18.98 79 163 8 0 0 -715.51 ± 146.53
461908 ncm-dbt-05 582485 500 9 325 166 -258.74 ± 18.54 75 166 9 0 0 -694.7 ± 134.18
461907 ncm-dbt-03 585169 500 12 331 157 -262.24 ± 20.59 84 151 15 0 0 -603.84 ± 95.91
461906 ncm-dbt-02 584495 500 7 332 161 -269.36 ± 19.85 84 157 9 0 0 -694.7 ± 134.18
461905 ncm-dbt-04 567720 500 7 308 185 -241.91 ± 17.46 64 173 13 0 0 -629.41 ± 104.8
461904 ncm-dbt-01 585211 500 8 319 173 -253.02 ± 18.37 72 167 11 0 0 -659.13 ± 116.77
461903 ncm-dbt-05 583447 500 11 329 160 -261.07 ± 20.7 84 150 16 0 0 -592.27 ± 92.24
461902 ncm-dbt-02 585674 500 5 324 171 -262.24 ± 19.26 79 161 10 0 0 -676.04 ± 124.55
461901 ncm-dbt-03 584958 500 7 320 173 -255.29 ± 18.39 73 167 10 0 0 -676.04 ± 124.55
461900 ncm-dbt-04 566730 500 13 328 159 -257.59 ± 20.01 80 155 15 0 0 -603.84 ± 95.91
461899 ncm-dbt-01 584537 500 9 325 166 -258.74 ± 19.89 80 156 14 0 0 -616.18 ± 100.06
461898 ncm-dbt-05 581610 500 13 333 154 -263.41 ± 20.74 85 150 15 0 0 -603.84 ± 95.91
461897 ncm-dbt-02 585084 500 11 323 166 -254.16 ± 20.08 78 157 14 1 0 -592.29 ± 99.42
461896 ncm-dbt-03 586689 500 12 331 157 -262.24 ± 21.1 86 147 17 0 0 -581.38 ± 88.96
461895 ncm-dbt-01 582277 500 6 317 177 -253.02 ± 18.1 71 169 10 0 0 -676.04 ± 124.55
461894 ncm-dbt-04 568196 500 9 328 163 -262.24 ± 19.8 81 157 12 0 0 -643.67 ± 110.29
461893 ncm-dbt-05 585379 500 9 322 169 -255.29 ± 19.97 79 155 16 0 0 -592.27 ± 92.24
461892 ncm-dbt-03 586901 500 11 329 160 -261.07 ± 19.92 81 156 13 0 0 -629.41 ± 104.8
461891 ncm-dbt-02 586943 500 13 328 159 -257.59 ± 21.01 82 153 13 2 0 -581.4 ± 101.74
461890 ncm-dbt-05 581777 500 6 318 176 -254.15 ± 17.97 71 170 9 0 0 -694.7 ± 134.18
461889 ncm-dbt-01 585928 500 11 325 164 -256.44 ± 19.6 78 158 14 0 0 -616.18 ± 100.06
461888 ncm-dbt-04 567165 500 10 317 173 -248.52 ± 18.33 70 167 13 0 0 -629.41 ± 104.8
461887 ncm-dbt-02 585970 500 12 317 171 -246.3 ± 19.06 72 161 17 0 0 -581.38 ± 88.96
461886 ncm-dbt-03 584076 500 13 320 167 -248.52 ± 19.1 73 161 16 0 0 -592.27 ± 92.24
461885 ncm-dbt-05 584874 500 10 309 181 -239.74 ± 17.69 63 174 12 1 0 -616.2 ± 109.19
461884 ncm-dbt-04 568037 500 13 330 157 -259.9 ± 20.56 83 151 16 0 0 -592.27 ± 92.24
461883 ncm-dbt-01 583614 500 7 314 179 -248.52 ± 17.52 67 173 10 0 0 -676.04 ± 124.55
461882 ncm-dbt-03 585632 500 13 321 166 -249.64 ± 19.5 75 158 17 0 0 -581.38 ± 88.96
461881 ncm-dbt-02 583950 500 6 322 172 -258.74 ± 18.82 76 164 10 0 0 -676.04 ± 124.55
461880 ncm-dbt-04 569151 500 7 314 179 -248.52 ± 17.52 67 173 10 0 0 -676.04 ± 124.55
461879 ncm-dbt-05 585379 500 10 328 162 -261.07 ± 19.66 80 158 12 0 0 -643.67 ± 110.29
461878 ncm-dbt-01 584159 500 9 316 175 -248.52 ± 17.52 67 173 10 0 0 -676.04 ± 124.55

Commit

Commit ID d7a26899a973536ab9d3ce4771d8276d1a4dc55c
Author Daniel Dugovic
Date 2020-08-09 15:07:45 UTC
Use fallback implementation for C++ aligned_alloc fixes https://github.com/official-stockfish/Stockfish/issues/2921 closes https://github.com/official-stockfish/Stockfish/pull/2927 No functional change
Copyright 2011–2026 Next Chess Move LLC