Dev Builds » 20211023-1022

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 06:52:45 584561 4000 690 1351 1959 -57.95 ± 5.14 12 833 961 192 2 -117.36 ± 10.96
ncm-dbt-02 06:54:17 584374 3986 728 1313 1945 -51.36 ± 5.11 10 772 1009 197 5 -104.12 ± 10.66
ncm-dbt-03 06:54:53 586785 4016 692 1312 2012 -54.07 ± 4.98 5 801 1012 189 1 -110.13 ± 10.64
ncm-dbt-04 06:53:08 570940 4000 719 1363 1918 -56.43 ± 5.2 11 835 942 211 1 -114.07 ± 11.09
ncm-dbt-05 06:55:25 586183 3998 692 1344 1962 -57.17 ± 5.06 12 811 996 177 3 -115.87 ± 10.73
20000 3521 6683 9796 -55.39 ± 2.28 50 4052 4920 966 12 -112.29 ± 4.83

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
405870 ncm-dbt-03 587877 16 3 7 6 -88.72 ± 93.48 0 5 2 1 0 -190.85 ± 457.95
405869 ncm-dbt-02 583866 486 85 160 241 -54.05 ± 14.92 2 96 121 23 1 -109.27 ± 30.91
405868 ncm-dbt-05 584748 498 84 165 249 -57.02 ± 13.53 0 100 130 19 0 -117.28 ± 29.53
405867 ncm-dbt-04 569390 500 72 175 253 -72.61 ± 13.69 1 116 118 15 0 -150.51 ± 31.19
405866 ncm-dbt-01 583531 500 78 162 260 -58.93 ± 14.15 2 101 126 21 0 -118.33 ± 30.18
405865 ncm-dbt-03 587452 500 86 171 243 -59.64 ± 13.9 1 103 126 20 0 -121.46 ± 30.15
405864 ncm-dbt-02 586054 500 97 176 227 -55.36 ± 14.39 3 96 128 23 0 -109.07 ± 29.94
405863 ncm-dbt-05 586985 500 85 167 248 -57.5 ± 15.16 2 107 112 29 0 -115.23 ± 32.29
405862 ncm-dbt-04 570669 500 92 165 243 -51.09 ± 15.49 2 102 114 31 1 -102.97 ± 32.0
405861 ncm-dbt-01 583405 500 103 170 227 -46.84 ± 15.64 1 102 111 35 1 -95.44 ± 32.4
405860 ncm-dbt-03 587877 500 87 159 254 -50.38 ± 13.58 0 94 134 22 0 -102.97 ± 29.07
405859 ncm-dbt-02 584285 500 99 163 238 -44.72 ± 14.9 2 91 127 29 1 -89.48 ± 30.19
405858 ncm-dbt-05 583992 500 101 169 230 -47.55 ± 14.92 2 94 125 28 1 -95.44 ± 30.46
405857 ncm-dbt-04 570789 500 105 177 218 -50.38 ± 15.07 0 105 112 33 0 -102.97 ± 32.28
405856 ncm-dbt-01 583992 500 87 155 258 -47.55 ± 14.26 0 95 129 25 1 -98.44 ± 29.86
405855 ncm-dbt-03 585548 500 101 163 236 -43.3 ± 13.88 0 89 134 27 0 -88.0 ± 29.2
405854 ncm-dbt-02 581444 500 96 167 237 -49.67 ± 13.83 1 92 134 23 0 -99.95 ± 29.1
405853 ncm-dbt-05 586816 500 96 165 239 -48.25 ± 13.46 1 88 140 21 0 -96.94 ± 28.21
405852 ncm-dbt-04 570789 500 83 167 250 -58.93 ± 15.09 0 114 106 30 0 -121.46 ± 33.17
405851 ncm-dbt-03 586943 500 96 168 236 -50.38 ± 14.94 1 100 120 28 1 -102.97 ± 31.15
405850 ncm-dbt-01 587622 500 80 170 250 -63.23 ± 14.34 1 110 117 22 0 -129.35 ± 31.52
405849 ncm-dbt-04 571551 500 108 175 217 -46.84 ± 15.01 3 92 124 31 0 -90.97 ± 30.61
405848 ncm-dbt-02 587494 500 99 164 237 -45.42 ± 14.94 1 95 123 30 1 -92.46 ± 30.75
405847 ncm-dbt-05 586562 500 87 165 248 -54.65 ± 14.36 2 97 129 21 1 -110.6 ± 29.78
405846 ncm-dbt-03 585295 500 80 168 252 -61.79 ± 14.27 2 105 122 21 0 -124.6 ± 30.76
405845 ncm-dbt-01 583405 500 95 171 234 -53.22 ± 15.08 3 99 119 29 0 -104.49 ± 31.29
405844 ncm-dbt-04 572316 500 84 151 265 -46.84 ± 13.81 1 89 136 24 0 -93.95 ± 28.85
405843 ncm-dbt-02 583363 500 82 160 258 -54.65 ± 13.94 0 101 126 23 0 -112.14 ± 30.22
405842 ncm-dbt-05 586477 500 75 167 258 -64.66 ± 13.69 1 107 125 17 0 -132.54 ± 30.2
405841 ncm-dbt-03 586181 500 81 158 261 -53.93 ± 14.46 0 104 119 27 0 -110.6 ± 31.28
405840 ncm-dbt-01 585000 500 78 173 249 -66.82 ± 14.62 2 113 113 22 0 -135.76 ± 32.12
405839 ncm-dbt-04 570388 500 88 178 234 -63.23 ± 14.75 3 107 117 23 0 -126.18 ± 31.53
405838 ncm-dbt-02 584327 500 87 166 247 -55.36 ± 14.66 0 106 118 25 1 -115.23 ± 31.41
405837 ncm-dbt-05 586943 500 90 163 247 -51.09 ± 14.58 3 93 128 26 0 -99.95 ± 30.0
405836 ncm-dbt-01 585169 500 84 167 249 -58.21 ± 14.11 2 100 127 21 0 -116.78 ± 30.03
405835 ncm-dbt-03 585337 500 79 152 269 -51.09 ± 13.9 1 94 132 23 0 -102.97 ± 29.38
405834 ncm-dbt-04 571632 500 87 175 238 -61.79 ± 14.55 1 110 115 24 0 -126.18 ± 31.84
405833 ncm-dbt-02 584159 500 83 157 260 -51.8 ± 14.08 1 95 132 21 1 -106.01 ± 29.35
405832 ncm-dbt-01 584369 500 85 183 232 -68.99 ± 13.86 1 113 119 17 0 -142.26 ± 31.1
405831 ncm-dbt-05 586943 500 74 183 243 -76.98 ± 14.41 1 125 107 16 1 -162.35 ± 33.02
405830 ncm-dbt-03 588558 500 79 166 255 -61.07 ± 13.82 0 107 123 20 0 -126.18 ± 30.59

Commit

Commit ID 2214fcecf7ae5d1d4165596bcd238b6e6bc909c1
Author Stefano Cardanobile
Date 2021-10-23 10:22:02 UTC
Rewrite NNUE evaluation adjustments Make the eval code in the evaluate_nnue.cpp more similar to the rest of the codebase: * remove multiple variable assignment * make if conditions explicit and indent on multiple lines passed STC LLR: 2.93 (-2.94,2.94) <-2.50,0.50> Total: 59032 W: 14834 L: 14751 D: 29447 Ptnml(0-2): 176, 6310, 16459, 6397, 174 https://tests.stockfishchess.org/tests/view/616f250540f619782fd4f76d closes https://github.com/official-stockfish/Stockfish/pull/3753 No functional change
Copyright 2011–2025 Next Chess Move LLC