Dev Builds » 20200414-0601

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 06:25:46 582531 3986 58 2591 1337 -260.77 ± 6.76 620 1294 78 1 0 -675.46 ± 39.16
ncm-dbt-02 06:26:10 585377 4014 57 2573 1384 -255.76 ± 6.49 587 1344 74 2 0 -681.18 ± 40.22
ncm-dbt-03 06:24:32 585348 4000 56 2602 1342 -261.36 ± 6.73 622 1304 72 2 0 -685.17 ± 40.8
ncm-dbt-04 06:26:04 567891 4000 60 2582 1358 -257.88 ± 6.63 604 1314 82 0 0 -671.7 ± 38.16
ncm-dbt-05 06:24:56 582374 4000 64 2597 1339 -259.47 ± 6.7 614 1306 79 1 0 -673.88 ± 38.91
20000 295 12945 6760 -259.04 ± 2.98 3047 6562 385 6 0 -677.41 ± 17.41

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
444834 ncm-dbt-02 584285 14 0 10 4 -310.89 ± 151.57 3 4 0 0 0 -1199.83 ± 201.74
444833 ncm-dbt-04 566888 500 8 321 171 -255.29 ± 18.39 73 167 10 0 0 -676.04 ± 124.55
444832 ncm-dbt-01 581319 486 5 322 159 -270.72 ± 20.08 82 153 8 0 0 -710.49 ± 146.48
444831 ncm-dbt-03 586054 500 5 309 186 -245.19 ± 16.53 62 180 8 0 0 -715.51 ± 146.53
444830 ncm-dbt-05 582402 500 7 323 170 -258.74 ± 18.26 74 168 8 0 0 -715.51 ± 146.53
444829 ncm-dbt-02 585970 500 8 311 181 -244.09 ± 17.22 64 175 11 0 0 -659.13 ± 116.77
444828 ncm-dbt-04 565941 500 7 334 159 -271.78 ± 19.86 85 157 8 0 0 -715.51 ± 146.53
444827 ncm-dbt-01 583447 500 6 316 178 -251.89 ± 17.68 69 172 9 0 0 -694.7 ± 134.18
444826 ncm-dbt-03 587240 500 7 327 166 -263.41 ± 18.84 78 164 8 0 0 -715.51 ± 146.53
444825 ncm-dbt-05 579661 500 14 310 176 -236.51 ± 17.77 63 170 17 0 0 -581.38 ± 88.96
444824 ncm-dbt-02 586097 500 4 303 193 -239.73 ± 15.51 56 187 7 0 0 -739.05 ± 163.27
444823 ncm-dbt-01 582819 500 10 328 162 -261.07 ± 19.38 79 160 11 0 0 -659.13 ± 116.77
444822 ncm-dbt-04 570629 500 5 320 175 -257.59 ± 18.4 74 167 9 0 0 -694.7 ± 134.18
444821 ncm-dbt-03 587962 500 6 338 156 -277.92 ± 20.01 88 156 6 0 0 -766.17 ± 188.02
444820 ncm-dbt-05 585295 500 11 330 159 -262.24 ± 19.53 80 159 11 0 0 -659.13 ± 116.77
444819 ncm-dbt-02 584706 500 9 315 176 -247.41 ± 17.92 68 170 12 0 0 -643.67 ± 110.29
444818 ncm-dbt-01 580240 500 5 327 168 -265.78 ± 19.13 79 165 5 1 0 -739.1 ± 208.89
444817 ncm-dbt-04 565037 500 10 308 182 -238.65 ± 17.29 62 174 14 0 0 -616.18 ± 100.06
444816 ncm-dbt-03 582694 500 9 319 172 -251.89 ± 19.02 73 165 11 1 0 -629.43 ± 115.29
444815 ncm-dbt-05 581111 500 9 321 170 -254.16 ± 19.31 75 163 11 1 0 -629.43 ± 115.29
444814 ncm-dbt-02 586054 500 6 330 164 -268.16 ± 19.7 82 161 6 1 0 -715.55 ± 177.2
444813 ncm-dbt-04 571511 500 7 320 173 -255.29 ± 18.66 74 165 11 0 0 -659.13 ± 116.77
444812 ncm-dbt-01 585042 500 8 310 182 -243.0 ± 17.61 65 172 13 0 0 -629.41 ± 104.8
444811 ncm-dbt-03 582736 500 7 327 166 -263.41 ± 19.95 82 156 12 0 0 -643.67 ± 110.29
444810 ncm-dbt-05 584958 500 6 333 161 -271.78 ± 19.57 84 159 7 0 0 -739.05 ± 163.27
444809 ncm-dbt-02 586139 500 8 330 162 -265.77 ± 19.41 81 160 9 0 0 -694.7 ± 134.18
444808 ncm-dbt-01 582903 500 7 320 173 -255.29 ± 18.66 74 165 11 0 0 -659.13 ± 116.77
444807 ncm-dbt-04 567878 500 5 336 159 -276.68 ± 20.16 88 155 7 0 0 -739.05 ± 163.27
444806 ncm-dbt-03 585632 500 6 319 175 -255.3 ± 18.11 71 172 6 1 0 -715.55 ± 177.2
444805 ncm-dbt-05 582027 500 6 329 165 -266.96 ± 18.99 80 163 7 0 0 -739.05 ± 163.27
444804 ncm-dbt-02 582277 500 9 329 162 -263.41 ± 20.22 83 154 13 0 0 -629.41 ± 104.8
444803 ncm-dbt-01 583740 500 9 323 168 -256.44 ± 19.07 76 162 12 0 0 -643.67 ± 110.29
444802 ncm-dbt-03 583740 500 6 333 161 -271.78 ± 19.57 84 159 7 0 0 -739.05 ± 163.27
444801 ncm-dbt-05 578712 500 8 331 161 -266.96 ± 20.12 84 155 11 0 0 -659.13 ± 116.77
444800 ncm-dbt-04 566612 500 10 329 161 -262.24 ± 20.07 82 155 13 0 0 -629.41 ± 104.8
444799 ncm-dbt-02 586562 500 7 318 175 -253.02 ± 17.82 70 171 9 0 0 -694.7 ± 134.18
444798 ncm-dbt-03 586731 500 10 330 160 -263.41 ± 20.48 84 152 14 0 0 -616.18 ± 100.06
444797 ncm-dbt-01 580738 500 8 345 147 -284.21 ± 21.64 96 145 9 0 0 -694.7 ± 134.18
444796 ncm-dbt-04 568633 500 8 314 178 -247.41 ± 17.38 66 174 10 0 0 -676.04 ± 124.55
444795 ncm-dbt-02 586308 500 6 327 167 -264.59 ± 19.55 80 162 7 1 0 -694.74 ± 156.93
444794 ncm-dbt-05 584832 500 3 320 177 -259.9 ± 18.12 74 169 7 0 0 -739.05 ± 163.27

Commit

Commit ID 5c58f6712667076babe9ebaac1689436721c42be
Author Stefan Geschwentner
Date 2020-04-14 06:01:53 UTC
less bonus for blocked connected pawn Use less bonus for blocked connected pawns so closed positions are less worth. STC: LLR: 2.96 (-2.94,2.94) {-0.50,1.50} Total: 60004 W: 11904 L: 11619 D: 36481 Ptnml(0-2): 1066, 7083, 13535, 7136, 1182 https://tests.stockfishchess.org/tests/view/5e941a8063d105aebbab23e3 LTC: LLR: 2.95 (-2.94,2.94) {0.25,1.75} Total: 36606 W: 4831 L: 4556 D: 27219 Ptnml(0-2): 252, 3353, 10872, 3520, 306 https://tests.stockfishchess.org/tests/view/5e9444b963d105aebbab2427 closes https://github.com/official-stockfish/Stockfish/pull/2629 Bench: 4961260
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