Dev Builds » 20200523-2006

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 06:29:52 584589 4004 57 2599 1348 -260.41 ± 6.78 625 1293 83 1 0 -665.5 ± 37.93
ncm-dbt-02 06:27:48 586806 4000 52 2564 1384 -256.44 ± 6.39 580 1352 68 0 0 -704.84 ± 42.05
ncm-dbt-03 06:30:33 584879 3998 62 2561 1375 -254.76 ± 6.53 584 1332 82 1 0 -667.34 ± 38.17
ncm-dbt-04 06:29:32 568453 4000 59 2575 1366 -257.02 ± 6.6 599 1318 83 0 0 -669.55 ± 37.92
ncm-dbt-05 06:30:02 581559 3998 68 2566 1364 -254.62 ± 6.65 594 1311 93 1 0 -645.47 ± 35.77
20000 298 12865 6837 -256.65 ± 2.95 2982 6606 409 3 0 -669.55 ± 16.89

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
465751 ncm-dbt-01 585421 4 0 3 1 -336.56 ± 527.33 1 1 0 0 0 -1199.83 ± 312.71
465750 ncm-dbt-05 579289 498 8 313 177 -247.66 ± 18.53 69 168 11 1 0 -628.72 ± 115.29
465749 ncm-dbt-03 582819 498 10 320 168 -253.3 ± 18.99 74 162 13 0 0 -628.69 ± 104.79
465748 ncm-dbt-04 569509 500 9 325 166 -258.74 ± 20.15 81 154 15 0 0 -603.84 ± 95.91
465747 ncm-dbt-02 585590 500 2 323 175 -264.59 ± 17.5 74 173 3 0 0 -887.58 ± 222.18
465746 ncm-dbt-01 585843 500 8 339 153 -276.68 ± 21.3 92 147 11 0 0 -659.13 ± 116.77
465745 ncm-dbt-03 585970 500 12 329 159 -259.9 ± 19.51 79 159 12 0 0 -643.67 ± 110.29
465744 ncm-dbt-05 581361 500 6 318 176 -254.15 ± 18.52 73 166 11 0 0 -659.13 ± 116.77
465743 ncm-dbt-04 571110 500 7 321 172 -256.44 ± 18.8 75 164 11 0 0 -659.13 ± 116.77
465742 ncm-dbt-02 588047 500 4 320 176 -258.74 ± 17.39 71 174 5 0 0 -798.18 ± 231.48
465741 ncm-dbt-01 584034 500 13 326 161 -255.29 ± 20.22 80 153 17 0 0 -581.38 ± 88.96
465740 ncm-dbt-03 584201 500 6 331 163 -269.36 ± 19.57 83 159 8 0 0 -715.51 ± 146.53
465739 ncm-dbt-02 586308 500 10 322 168 -254.15 ± 18.78 74 164 12 0 0 -643.67 ± 110.29
465738 ncm-dbt-05 579909 500 12 315 173 -244.09 ± 18.27 68 167 15 0 0 -603.84 ± 95.91
465737 ncm-dbt-04 566770 500 5 323 172 -261.07 ± 18.26 75 168 7 0 0 -739.05 ± 163.27
465736 ncm-dbt-01 585674 500 6 318 176 -254.15 ± 17.68 70 172 8 0 0 -715.51 ± 146.53
465735 ncm-dbt-03 585000 500 10 322 168 -254.15 ± 19.05 75 162 13 0 0 -629.41 ± 104.8
465734 ncm-dbt-02 587155 500 7 330 163 -266.96 ± 19.56 82 159 9 0 0 -694.7 ± 134.18
465733 ncm-dbt-04 569031 500 10 322 168 -254.15 ± 18.78 74 164 12 0 0 -643.67 ± 110.29
465732 ncm-dbt-01 581943 500 7 325 168 -261.07 ± 19.38 79 160 11 0 0 -659.13 ± 116.77
465731 ncm-dbt-05 584201 500 9 322 169 -255.29 ± 18.66 74 165 11 0 0 -659.13 ± 116.77
465730 ncm-dbt-03 585126 500 7 322 171 -257.59 ± 17.83 72 171 7 0 0 -739.05 ± 163.27
465729 ncm-dbt-02 586689 500 8 328 164 -263.41 ± 18.84 78 164 8 0 0 -715.51 ± 146.53
465728 ncm-dbt-01 581652 500 5 319 176 -256.44 ± 18.53 74 166 10 0 0 -676.04 ± 124.55
465727 ncm-dbt-04 567759 500 4 326 170 -265.77 ± 18.55 78 166 6 0 0 -766.17 ± 188.02
465726 ncm-dbt-05 580075 500 10 328 162 -261.07 ± 19.38 79 160 11 0 0 -659.13 ± 116.77
465725 ncm-dbt-02 587197 500 10 324 166 -256.44 ± 20.12 80 154 16 0 0 -592.27 ± 92.24
465724 ncm-dbt-04 567205 500 9 317 174 -249.64 ± 17.67 68 172 10 0 0 -676.04 ± 124.55
465723 ncm-dbt-03 582235 500 5 318 177 -255.29 ± 17.54 70 173 7 0 0 -739.05 ± 163.27
465722 ncm-dbt-01 584076 500 5 326 169 -264.59 ± 19.27 80 161 9 0 0 -694.7 ± 134.18
465721 ncm-dbt-05 584706 500 8 324 168 -258.74 ± 19.63 79 158 13 0 0 -629.41 ± 104.8
465720 ncm-dbt-02 588132 500 4 313 183 -250.76 ± 16.68 65 179 6 0 0 -766.17 ± 188.02
465719 ncm-dbt-04 566691 500 8 320 172 -254.15 ± 18.24 72 168 10 0 0 -676.04 ± 124.55
465718 ncm-dbt-01 587452 500 9 317 174 -249.64 ± 18.99 72 165 12 1 0 -616.2 ± 109.19
465717 ncm-dbt-03 584916 500 8 308 184 -240.82 ± 17.84 64 173 12 1 0 -616.2 ± 109.19
465716 ncm-dbt-05 580116 500 7 318 175 -253.02 ± 17.54 69 173 8 0 0 -715.51 ± 146.53
465715 ncm-dbt-02 585337 500 7 304 189 -237.58 ± 15.8 56 185 9 0 0 -694.7 ± 134.18
465714 ncm-dbt-05 582819 500 8 328 164 -263.41 ± 20.22 83 154 13 0 0 -629.41 ± 104.8
465713 ncm-dbt-04 569549 500 7 321 172 -256.44 ± 19.07 76 162 12 0 0 -643.67 ± 110.29
465712 ncm-dbt-01 585211 500 4 326 170 -265.77 ± 18.25 77 168 5 0 0 -798.18 ± 231.48
465711 ncm-dbt-03 588771 500 4 311 185 -248.52 ± 17.52 67 173 10 0 0 -676.04 ± 124.55

Commit

Commit ID 86575bcdd88f6d211b4f182966e44a40faf1e315
Author FauziAkram
Date 2020-05-23 20:06:26 UTC
Queen Mobility Tweak It's ok to have low mobility values for the Queen in the middlegame, but it's absolutely not ok to have low mobility values for the Queen in the endgame. Decrease penalty for bad mobility in MG and increase it in EG. STC: LLR: 2.93 (-2.94,2.94) {-0.50,1.50} Total: 17264 W: 3424 L: 3206 D: 10634 Ptnml(0-2): 279, 2004, 3893, 2132, 324 https://tests.stockfishchess.org/tests/view/5ec8f9c1526edcbe9091eba1 LTC: LLR: 2.94 (-2.94,2.94) {0.25,1.75} Total: 175016 W: 22071 L: 21404 D: 131541 Ptnml(0-2): 1195, 15796, 52914, 16353, 1250 https://tests.stockfishchess.org/tests/view/5ec9057c404591b2793007df closes https://github.com/official-stockfish/Stockfish/pull/2697 Bench: 4487054
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