Dev Builds » 20200502-1530

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 06:26:03 584382 4000 76 2601 1323 -258.31 ± 6.84 622 1282 95 1 0 -641.85 ± 35.38
ncm-dbt-02 06:26:46 586181 4000 66 2620 1314 -262.53 ± 6.95 645 1265 89 1 0 -653.21 ± 36.59
ncm-dbt-03 06:25:52 586386 4000 63 2572 1365 -256.01 ± 6.57 592 1326 81 1 0 -669.55 ± 38.41
ncm-dbt-04 06:26:27 568311 4010 64 2610 1336 -260.44 ± 6.75 624 1299 81 1 0 -669.99 ± 38.41
ncm-dbt-05 06:28:04 582845 3990 55 2577 1358 -258.79 ± 6.65 607 1308 80 0 0 -675.63 ± 38.65
20000 324 12980 6696 -259.21 ± 3.02 3090 6480 426 4 0 -661.6 ± 16.54

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
466741 ncm-dbt-04 568156 10 0 6 4 -240.47 ± 101.72 1 4 0 0 0 -1199.83 ± 231.31
466740 ncm-dbt-05 581693 490 4 324 162 -271.21 ± 19.44 81 158 6 0 0 -762.62 ± 187.96
466739 ncm-dbt-02 585506 500 7 322 171 -257.59 ± 18.4 74 167 9 0 0 -694.7 ± 134.18
466738 ncm-dbt-01 583572 500 6 333 161 -271.78 ± 20.15 86 155 9 0 0 -694.7 ± 134.18
466737 ncm-dbt-03 586012 500 8 325 167 -259.9 ± 19.51 79 159 12 0 0 -643.67 ± 110.29
466736 ncm-dbt-04 567284 500 9 320 171 -253.02 ± 18.37 71 170 8 1 0 -676.08 ± 142.43
466735 ncm-dbt-05 579001 500 9 317 174 -249.64 ± 18.99 73 162 15 0 0 -603.84 ± 95.91
466734 ncm-dbt-02 586562 500 9 331 160 -265.78 ± 20.77 85 153 11 1 0 -629.43 ± 115.29
466733 ncm-dbt-01 585506 500 7 307 186 -240.82 ± 17.58 63 175 11 1 0 -629.43 ± 115.29
466732 ncm-dbt-04 567759 500 6 321 173 -257.59 ± 18.12 73 169 8 0 0 -715.51 ± 146.53
466731 ncm-dbt-03 582987 500 8 304 188 -236.51 ± 15.93 56 184 10 0 0 -676.04 ± 124.55
466730 ncm-dbt-02 586731 500 9 331 160 -265.77 ± 20.24 84 154 12 0 0 -643.67 ± 110.29
466729 ncm-dbt-05 581236 500 4 321 175 -259.9 ± 18.97 77 163 10 0 0 -676.04 ± 124.55
466728 ncm-dbt-01 583950 500 14 327 159 -255.29 ± 20.47 81 151 18 0 0 -571.09 ± 86.01
466727 ncm-dbt-04 568713 500 9 318 173 -250.76 ± 18.62 72 165 13 0 0 -629.41 ± 104.8
466726 ncm-dbt-03 587707 500 6 331 163 -269.36 ± 19.85 83 160 6 1 0 -715.55 ± 177.2
466725 ncm-dbt-02 584916 500 5 325 170 -263.41 ± 18.26 76 168 6 0 0 -766.17 ± 188.02
466724 ncm-dbt-01 584958 500 8 325 167 -259.9 ± 18.97 77 163 10 0 0 -676.04 ± 124.55
466723 ncm-dbt-04 569430 500 9 326 165 -259.9 ± 19.24 78 161 11 0 0 -659.13 ± 116.77
466722 ncm-dbt-05 582193 500 6 326 168 -263.41 ± 18.84 78 164 8 0 0 -715.51 ± 146.53
466721 ncm-dbt-03 587113 500 11 315 174 -245.19 ± 18.16 68 168 14 0 0 -616.18 ± 100.06
466720 ncm-dbt-01 582945 500 9 333 158 -268.16 ± 19.99 84 156 10 0 0 -676.04 ± 124.55
466719 ncm-dbt-02 585674 500 6 319 175 -255.29 ± 18.39 73 167 10 0 0 -676.04 ± 124.55
466718 ncm-dbt-04 569270 500 8 334 158 -270.57 ± 20.28 86 154 10 0 0 -676.04 ± 124.55
466717 ncm-dbt-05 584076 500 7 317 176 -251.89 ± 17.95 70 170 10 0 0 -676.04 ± 124.55
466716 ncm-dbt-03 586562 500 7 310 183 -244.09 ± 16.67 62 179 9 0 0 -694.7 ± 134.18
466715 ncm-dbt-04 568912 500 12 330 158 -261.07 ± 20.19 82 154 14 0 0 -616.18 ± 100.06
466714 ncm-dbt-01 583237 500 10 327 163 -259.9 ± 18.97 77 163 10 0 0 -676.04 ± 124.55
466713 ncm-dbt-03 585211 500 6 330 164 -268.16 ± 19.71 83 158 9 0 0 -694.7 ± 134.18
466712 ncm-dbt-02 586985 500 4 333 163 -274.22 ± 20.15 87 155 8 0 0 -715.51 ± 146.53
466711 ncm-dbt-05 588047 500 15 315 170 -240.82 ± 18.09 66 168 16 0 0 -592.27 ± 92.24
466710 ncm-dbt-04 566928 500 6 343 151 -284.21 ± 20.75 93 151 6 0 0 -766.17 ± 188.02
466709 ncm-dbt-02 586435 500 14 341 145 -271.78 ± 21.78 92 143 15 0 0 -603.84 ± 95.91
466708 ncm-dbt-01 584285 500 11 324 165 -255.29 ± 18.93 75 163 12 0 0 -643.67 ± 110.29
466707 ncm-dbt-03 587197 500 9 324 167 -257.59 ± 19.49 78 159 13 0 0 -629.41 ± 104.8
466706 ncm-dbt-05 582569 500 5 333 162 -272.99 ± 19.12 83 162 5 0 0 -798.18 ± 231.48
466705 ncm-dbt-04 568355 500 5 312 183 -248.52 ± 17.79 68 171 11 0 0 -659.13 ± 116.77
466704 ncm-dbt-03 588302 500 8 333 159 -269.36 ± 19.57 83 159 8 0 0 -715.51 ± 146.53
466703 ncm-dbt-02 586646 500 12 318 170 -247.41 ± 19.45 74 158 18 0 0 -571.09 ± 86.01
466702 ncm-dbt-05 583950 500 5 324 171 -262.24 ± 19.26 79 161 10 0 0 -676.04 ± 124.55
466701 ncm-dbt-01 586604 500 11 325 164 -256.44 ± 19.86 79 156 15 0 0 -603.84 ± 95.91

Commit

Commit ID eb4a124b8859a6029b61f403e0a9415fa748e4bd
Author Vizvezdenec
Date 2020-05-02 15:30:22 UTC
Refine scale factor of opposite colored bishops endgames. This patch makes it dependant on the count of passed pawns of the strong side instead of 22/64 in every case. passed STC https://tests.stockfishchess.org/tests/view/5ead60966ffeed51f6e32591 LLR: 2.96 (-2.94,2.94) {-0.50,1.50} Total: 50336 W: 9473 L: 9241 D: 31622 Ptnml(0-2): 570, 5371, 13098, 5515, 614 passed LTC https://tests.stockfishchess.org/tests/view/5ead6d3b6ffeed51f6e325b0 LLR: 2.94 (-2.94,2.94) {0.25,1.75} Total: 21952 W: 2810 L: 2603 D: 16539 Ptnml(0-2): 101, 1791, 7005, 1958, 121 closes https://github.com/official-stockfish/Stockfish/pull/2658 bench 4247490
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