Dev Builds » 20211023-1023

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 06:53:21 582593 4000 676 1271 2053 -52.07 ± 5.14 4 807 971 216 2 -106.2 ± 10.91
ncm-dbt-02 06:54:03 586578 4016 725 1341 1950 -53.72 ± 5.2 8 825 952 221 2 -108.98 ± 11.03
ncm-dbt-03 06:53:39 585622 4000 690 1293 2017 -52.78 ± 5.11 10 790 995 203 2 -106.58 ± 10.75
ncm-dbt-04 06:54:01 568906 4012 734 1306 1972 -49.87 ± 5.16 9 780 995 218 4 -100.95 ± 10.77
ncm-dbt-05 06:52:52 580293 3972 724 1343 1905 -54.59 ± 5.09 6 805 980 192 3 -111.43 ± 10.83
20000 3549 6554 9897 -52.6 ± 2.3 37 4007 4893 1050 13 -106.81 ± 4.85

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
435876 ncm-dbt-04 567680 12 3 3 6 -0.0 ± 117.89 0 2 2 2 0 -0.0 ± 271.37
435875 ncm-dbt-02 585295 16 6 5 5 +21.74 ± 96.86 0 2 3 3 0 +43.66 ± 216.48
435874 ncm-dbt-05 582318 472 81 158 233 -57.19 ± 14.52 1 96 118 21 0 -116.01 ± 31.24
435873 ncm-dbt-03 587707 500 89 159 252 -48.96 ± 14.74 2 94 127 26 1 -98.44 ± 30.15
435872 ncm-dbt-01 583908 500 78 153 269 -52.51 ± 13.69 0 97 131 22 0 -107.54 ± 29.49
435871 ncm-dbt-04 566493 500 96 164 240 -47.54 ± 14.53 1 95 125 29 0 -95.44 ± 30.46
435870 ncm-dbt-02 587962 500 88 164 248 -53.22 ± 14.95 0 107 112 31 0 -109.07 ± 32.29
435869 ncm-dbt-05 576292 500 85 167 248 -57.5 ± 14.08 0 105 122 23 0 -118.33 ± 30.8
435868 ncm-dbt-03 582987 500 95 151 254 -39.08 ± 14.96 2 87 126 35 0 -76.25 ± 30.37
435867 ncm-dbt-01 586350 500 74 152 274 -54.64 ± 15.66 1 111 103 35 0 -110.6 ± 33.55
435866 ncm-dbt-02 586139 500 95 161 244 -46.13 ± 14.18 1 90 134 24 1 -93.95 ± 29.15
435865 ncm-dbt-04 567482 500 97 155 248 -40.48 ± 14.78 2 87 128 33 0 -79.17 ± 30.09
435864 ncm-dbt-05 582945 500 95 174 231 -55.36 ± 14.53 1 102 123 23 1 -113.68 ± 30.67
435863 ncm-dbt-03 585084 500 84 172 244 -61.79 ± 13.99 1 106 123 20 0 -126.18 ± 30.59
435862 ncm-dbt-01 581610 500 76 176 248 -70.44 ± 13.62 0 115 121 13 1 -148.85 ± 30.69
435861 ncm-dbt-02 587664 500 82 163 255 -56.78 ± 14.6 1 104 121 23 1 -116.78 ± 30.96
435860 ncm-dbt-04 569310 500 93 160 247 -46.84 ± 13.67 1 88 138 23 0 -93.95 ± 28.55
435859 ncm-dbt-05 579331 500 91 170 239 -55.36 ± 14.26 1 101 124 24 0 -112.14 ± 30.53
435858 ncm-dbt-03 586562 500 82 160 258 -54.64 ± 13.52 1 95 135 19 0 -110.6 ± 28.84
435857 ncm-dbt-01 582068 500 92 166 242 -51.8 ± 14.62 1 100 121 28 0 -104.49 ± 31.0
435856 ncm-dbt-02 588515 500 85 173 242 -61.79 ± 15.34 4 107 112 27 0 -121.46 ± 32.29
435855 ncm-dbt-04 568752 500 73 158 269 -59.64 ± 14.73 2 106 117 25 0 -119.89 ± 31.55
435854 ncm-dbt-05 582945 500 79 161 260 -57.5 ± 14.63 1 106 117 26 0 -116.78 ± 31.56
435853 ncm-dbt-03 584874 500 89 162 249 -51.09 ± 15.61 1 106 109 33 1 -104.49 ± 32.7
435852 ncm-dbt-01 582819 500 94 158 248 -44.72 ± 14.51 1 92 127 30 0 -89.48 ± 30.19
435851 ncm-dbt-02 586477 500 87 174 239 -61.07 ± 13.82 0 107 123 20 0 -126.18 ± 30.59
435850 ncm-dbt-04 568196 500 91 162 247 -49.67 ± 15.42 2 100 116 31 1 -99.95 ± 31.72
435849 ncm-dbt-05 580157 500 96 172 232 -53.22 ± 13.87 1 96 131 22 0 -107.54 ± 29.49
435848 ncm-dbt-01 584159 500 88 163 249 -52.51 ± 15.18 1 105 112 32 0 -106.01 ± 32.28
435847 ncm-dbt-03 584664 500 89 165 246 -53.22 ± 14.15 1 98 127 24 0 -107.54 ± 30.1
435846 ncm-dbt-02 585674 500 91 160 249 -48.25 ± 14.57 0 99 121 30 0 -98.44 ± 31.02
435845 ncm-dbt-04 570549 500 83 159 258 -53.22 ± 14.42 0 101 126 21 2 -112.14 ± 30.22
435844 ncm-dbt-05 576373 500 91 173 236 -57.5 ± 14.08 0 105 122 23 0 -118.33 ± 30.8
435843 ncm-dbt-01 578054 500 82 150 268 -47.55 ± 14.26 0 95 129 25 1 -98.44 ± 29.86
435842 ncm-dbt-03 583992 500 85 166 249 -56.78 ± 13.91 1 100 128 21 0 -115.23 ± 29.89
435841 ncm-dbt-02 585464 500 101 173 226 -50.38 ± 15.7 1 107 105 37 0 -101.46 ± 33.23
435840 ncm-dbt-04 570108 500 95 170 235 -52.51 ± 14.39 1 99 124 26 0 -106.01 ± 30.56
435839 ncm-dbt-05 581985 500 106 168 226 -43.3 ± 15.2 1 94 123 30 2 -89.48 ± 30.76
435838 ncm-dbt-02 586012 500 90 168 242 -54.64 ± 14.49 1 102 121 26 0 -110.6 ± 30.98
435837 ncm-dbt-01 581777 500 92 153 255 -42.6 ± 14.38 0 92 127 31 0 -86.52 ± 30.2
435836 ncm-dbt-04 571592 500 103 175 222 -50.38 ± 14.81 0 102 119 28 1 -104.49 ± 31.29
435835 ncm-dbt-03 589112 500 77 158 265 -56.78 ± 14.46 1 104 120 25 0 -115.23 ± 31.11

Commit

Commit ID 927a84d310fb41222518ea80d398933a0ba3e5b7
Author bmc4
Date 2021-10-23 10:23:29 UTC
Increase TTdepth acceptance some Threads Increase TTdepth acceptance only on half of the Threads STC: LLR: 2.96 (-2.94,2.94) <-0.50,2.50> Total: 19272 W: 4956 L: 4766 D: 9550 Ptnml(0-2): 25, 1989, 5423, 2169, 30 https://tests.stockfishchess.org/tests/view/6172be6238cb9784038af9a7 LTC: LLR: 2.93 (-2.94,2.94) <0.50,3.50> Total: 23688 W: 6111 L: 5897 D: 11680 Ptnml(0-2): 2, 2275, 7081, 2479, 7 https://tests.stockfishchess.org/tests/view/6172e32938cb9784038af9c7 closes https://github.com/official-stockfish/Stockfish/pull/3754 No functional change in the single-threaded case
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