Dev Builds » 20200405-0639

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 583024 4012 65 2606 1341 -259.53 ± 6.69 617 1307 82 0 0 -672.23 ± 38.16
ncm-dbt-02 06:24:16 585900 4000 61 2616 1323 -262.68 ± 6.8 633 1290 76 1 0 -680.57 ± 39.69
ncm-dbt-03 06:24:44 585924 4000 55 2644 1301 -267.72 ± 7.02 667 1256 76 1 0 -680.57 ± 39.69
ncm-dbt-04 06:26:53 567852 3996 46 2600 1350 -262.91 ± 6.72 626 1303 68 1 0 -699.54 ± 42.05
ncm-dbt-05 06:26:05 582024 3992 41 2621 1330 -267.14 ± 6.77 642 1298 54 2 0 -732.56 ± 47.35
20000 268 13087 6645 -263.98 ± 3.04 3185 6454 356 5 0 -691.81 ± 18.11

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
444877 ncm-dbt-01 582235 12 0 9 3 -337.54 ± 212.51 3 3 0 0 0 -1199.83 ± 215.27
444876 ncm-dbt-05 581153 492 3 332 157 -280.85 ± 19.92 87 155 4 0 0 -834.46 ± 242.36
444875 ncm-dbt-04 566572 496 3 318 175 -260.53 ± 17.69 72 171 5 0 0 -796.78 ± 231.44
444874 ncm-dbt-03 587579 500 8 336 156 -272.99 ± 20.29 87 154 9 0 0 -694.7 ± 134.18
444873 ncm-dbt-01 582068 500 11 330 159 -262.24 ± 20.59 84 151 15 0 0 -603.84 ± 95.91
444872 ncm-dbt-02 587155 500 5 349 146 -293.28 ± 21.5 99 146 5 0 0 -798.18 ± 231.48
444871 ncm-dbt-05 581818 500 8 332 160 -268.16 ± 19.71 83 158 9 0 0 -694.7 ± 134.18
444870 ncm-dbt-04 565941 500 7 331 162 -268.16 ± 20.26 85 154 11 0 0 -659.13 ± 116.77
444869 ncm-dbt-03 584874 500 6 331 163 -269.36 ± 20.68 86 154 9 1 0 -659.17 ± 131.36
444868 ncm-dbt-01 582903 500 11 330 159 -262.24 ± 20.07 82 155 13 0 0 -629.41 ± 104.8
444867 ncm-dbt-02 587579 500 4 332 164 -272.99 ± 20.01 86 156 8 0 0 -715.51 ± 146.53
444866 ncm-dbt-05 581111 500 9 318 173 -250.76 ± 18.08 70 169 11 0 0 -659.13 ± 116.77
444865 ncm-dbt-04 569230 500 3 334 163 -276.68 ± 19.56 86 159 5 0 0 -798.18 ± 231.48
444864 ncm-dbt-03 583363 500 10 323 167 -255.29 ± 18.93 75 163 12 0 0 -643.67 ± 110.29
444863 ncm-dbt-01 581943 500 6 334 160 -272.99 ± 19.42 84 160 6 0 0 -766.17 ± 188.02
444862 ncm-dbt-02 582987 500 8 315 177 -248.52 ± 17.79 68 171 11 0 0 -659.13 ± 116.77
444861 ncm-dbt-05 582819 500 5 338 157 -279.17 ± 20.75 90 154 5 1 0 -739.1 ± 208.89
444860 ncm-dbt-03 587197 500 9 335 156 -270.57 ± 20.28 86 154 10 0 0 -676.04 ± 124.55
444859 ncm-dbt-04 567799 500 8 312 180 -245.19 ± 18.16 68 168 14 0 0 -616.18 ± 100.06
444858 ncm-dbt-01 583489 500 6 320 174 -256.44 ± 18.8 75 164 11 0 0 -659.13 ± 116.77
444857 ncm-dbt-02 585084 500 8 326 166 -261.07 ± 19.11 78 162 10 0 0 -676.04 ± 124.55
444856 ncm-dbt-05 579661 500 7 322 171 -257.59 ± 18.68 75 165 10 0 0 -676.04 ± 124.55
444855 ncm-dbt-03 585717 500 5 335 160 -275.44 ± 21.43 92 146 12 0 0 -643.67 ± 110.29
444854 ncm-dbt-04 567918 500 6 318 176 -254.15 ± 17.4 69 174 7 0 0 -739.05 ± 163.27
444853 ncm-dbt-02 586139 500 5 328 167 -266.96 ± 18.99 80 163 7 0 0 -739.05 ± 163.27
444852 ncm-dbt-01 580199 500 10 323 167 -255.29 ± 18.66 74 165 11 0 0 -659.13 ± 116.77
444851 ncm-dbt-05 583112 500 5 325 170 -263.41 ± 18.26 76 168 6 0 0 -766.17 ± 188.02
444850 ncm-dbt-03 586774 500 7 335 158 -272.99 ± 20.85 89 150 11 0 0 -659.13 ± 116.77
444849 ncm-dbt-04 570509 500 5 322 173 -259.9 ± 18.12 74 169 7 0 0 -739.05 ± 163.27
444848 ncm-dbt-02 584201 500 8 329 163 -264.59 ± 18.98 79 163 8 0 0 -715.51 ± 146.53
444847 ncm-dbt-01 583028 500 9 330 161 -264.59 ± 19.82 82 157 11 0 0 -659.13 ± 116.77
444846 ncm-dbt-03 582778 500 6 320 174 -256.44 ± 17.69 71 172 7 0 0 -739.05 ± 163.27
444845 ncm-dbt-05 582110 500 0 321 179 -264.59 ± 18.41 77 167 6 0 0 -766.17 ± 188.02
444844 ncm-dbt-02 587749 500 12 324 164 -254.15 ± 19.57 77 158 15 0 0 -603.84 ± 95.91
444843 ncm-dbt-01 584076 500 3 313 184 -251.89 ± 15.92 63 184 3 0 0 -887.58 ± 222.18
444842 ncm-dbt-04 568196 500 4 333 163 -274.22 ± 20.72 88 154 7 1 0 -694.74 ± 156.93
444841 ncm-dbt-03 589112 500 4 329 167 -269.36 ± 18.98 81 163 6 0 0 -766.17 ± 188.02
444840 ncm-dbt-05 584411 500 4 333 163 -274.22 ± 19.57 84 162 3 1 0 -798.25 ± 263.18
444839 ncm-dbt-02 586308 500 11 313 176 -243.0 ± 18.13 66 171 12 1 0 -616.2 ± 109.19
444838 ncm-dbt-01 587282 500 9 317 174 -249.64 ± 18.21 70 168 12 0 0 -643.67 ± 110.29
444837 ncm-dbt-04 566651 500 10 332 158 -265.77 ± 20.24 84 154 12 0 0 -643.67 ± 110.29

Commit

Commit ID fbc7a328c67092799547f93e684323e2c1a6226e
Author 31m059
Date 2020-04-05 06:39:00 UTC
Retire candidate passed pawns Before this commit, some pawns were considered "candidate" passed pawns and given half bonus. After this commit, all of these pawns are scored as passed pawns, and they do not receive less bonus. STC: LLR: 2.95 (-2.94,2.94) {-1.50,0.50} Total: 21806 W: 4320 L: 4158 D: 13328 Ptnml(0-2): 367, 2526, 5001, 2596, 413 https://tests.stockfishchess.org/tests/view/5e86b4724411759d9d098639 LTC: LLR: 2.95 (-2.94,2.94) {-1.50,0.50} Total: 12590 W: 1734 L: 1617 D: 9239 Ptnml(0-2): 96, 1187, 3645, 1238, 129 https://tests.stockfishchess.org/tests/view/5e86d2874411759d9d098640 This PR and commit are dedicated to our colleague Stefan Geschwentner (@locutus2), one of the most respected and accomplished members of the Stockfish developer community. Stockfish is a volunteer project and has always thrived because of Stefan's talent, insight, generosity, and dedication. Welcome back, Stefan! closes https://github.com/official-stockfish/Stockfish/pull/2613 Bench: 4831963
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