Dev Builds » 20190221-1836

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 06:28:05 584755 4000 50 2703 1247 -277.46 ± 7.28 720 1213 67 0 0 -707.45 ± 42.37
ncm-dbt-02 06:29:54 592512 3996 43 2749 1204 -286.25 ± 7.46 759 1189 49 1 0 -755.39 ± 49.9
ncm-dbt-03 06:30:17 579754 4002 38 2763 1201 -288.65 ± 7.54 775 1175 51 0 0 -755.65 ± 48.88
ncm-dbt-04 06:30:38 568444 4002 49 2749 1204 -284.64 ± 7.49 759 1182 60 0 0 -727.02 ± 44.88
ncm-dbt-05 06:29:53 605359 4000 38 2768 1194 -289.68 ± 7.55 779 1172 49 0 0 -762.6 ± 49.92
20000 218 13732 6050 -285.3 ± 3.34 3792 5931 276 1 0 -740.36 ± 20.59

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
482189 ncm-dbt-04 567918 2 0 1 1 -189.7 ± 55.98 0 1 0 0 0 -1129.65 ± 376.02
482188 ncm-dbt-03 579661 2 0 1 1 -189.7 ± 55.98 0 1 0 0 0 -1129.65 ± 376.02
482187 ncm-dbt-02 593846 496 7 334 155 -275.0 ± 20.05 86 155 7 0 0 -737.63 ± 163.25
482186 ncm-dbt-01 584916 500 7 345 148 -285.48 ± 21.79 97 144 9 0 0 -694.7 ± 134.18
482185 ncm-dbt-05 602918 500 5 348 147 -291.96 ± 21.65 99 145 6 0 0 -766.17 ± 188.02
482184 ncm-dbt-04 567759 500 12 351 137 -286.77 ± 23.37 103 133 14 0 0 -616.18 ± 100.06
482183 ncm-dbt-03 579207 500 7 324 169 -259.9 ± 19.24 78 161 11 0 0 -659.13 ± 116.77
482182 ncm-dbt-02 590825 500 4 355 141 -302.69 ± 22.58 106 139 5 0 0 -798.18 ± 231.48
482181 ncm-dbt-01 584201 500 7 339 154 -277.92 ± 21.45 93 146 11 0 0 -659.13 ± 116.77
482180 ncm-dbt-05 622635 500 3 343 154 -288.06 ± 20.58 94 152 4 0 0 -837.28 ± 240.94
482179 ncm-dbt-04 567522 500 3 341 156 -285.48 ± 19.96 91 156 3 0 0 -887.58 ± 222.18
482178 ncm-dbt-03 578836 500 3 364 133 -316.79 ± 23.5 114 133 3 0 0 -887.58 ± 222.18
482177 ncm-dbt-02 594019 500 8 354 138 -295.93 ± 23.04 105 136 9 0 0 -694.7 ± 134.18
482176 ncm-dbt-01 585590 500 6 345 149 -286.77 ± 21.35 96 147 7 0 0 -739.05 ± 163.27
482175 ncm-dbt-05 601046 500 5 340 155 -281.67 ± 20.75 92 151 7 0 0 -739.05 ± 163.27
482174 ncm-dbt-03 577807 500 4 356 140 -304.06 ± 22.74 107 138 5 0 0 -798.18 ± 231.48
482173 ncm-dbt-04 568077 500 5 342 153 -284.21 ± 20.75 93 151 6 0 0 -766.17 ± 188.02
482172 ncm-dbt-02 590739 500 3 340 157 -284.21 ± 19.82 90 157 3 0 0 -887.58 ± 222.18
482171 ncm-dbt-01 584706 500 1 335 164 -280.42 ± 19.38 87 160 3 0 0 -887.58 ± 222.18
482170 ncm-dbt-05 602114 500 4 352 144 -298.61 ± 22.74 105 138 7 0 0 -739.05 ± 163.27
482169 ncm-dbt-03 580365 500 5 340 155 -281.67 ± 20.75 92 151 7 0 0 -739.05 ± 163.27
482168 ncm-dbt-04 567680 500 8 355 137 -297.27 ± 22.89 105 137 8 0 0 -715.51 ± 146.53
482167 ncm-dbt-01 586308 500 6 336 158 -275.44 ± 20.87 90 150 10 0 0 -676.04 ± 124.55
482166 ncm-dbt-02 592418 500 5 344 151 -286.77 ± 21.35 96 147 7 0 0 -739.05 ± 163.27
482165 ncm-dbt-03 581194 500 3 342 155 -286.77 ± 20.11 92 155 3 0 0 -887.58 ± 222.18
482164 ncm-dbt-05 601981 500 4 360 136 -309.64 ± 23.04 110 136 4 0 0 -837.28 ± 240.94
482163 ncm-dbt-04 569949 500 5 340 155 -281.67 ± 20.45 91 153 6 0 0 -766.17 ± 188.02
482162 ncm-dbt-01 585590 500 7 328 165 -264.59 ± 19.55 81 159 10 0 0 -676.04 ± 124.55
482161 ncm-dbt-03 580613 500 8 344 148 -282.94 ± 21.78 96 144 10 0 0 -676.04 ± 124.55
482160 ncm-dbt-02 593326 500 4 343 153 -286.77 ± 20.74 94 151 5 0 0 -798.18 ± 231.48
482159 ncm-dbt-05 601357 500 7 355 138 -298.61 ± 23.35 107 134 9 0 0 -694.7 ± 134.18
482158 ncm-dbt-04 568434 500 2 339 159 -284.21 ± 20.13 91 155 4 0 0 -837.28 ± 240.94
482157 ncm-dbt-01 585000 500 9 337 154 -272.99 ± 20.29 87 154 9 0 0 -694.7 ± 134.18
482156 ncm-dbt-02 593456 500 5 338 157 -279.17 ± 20.75 90 154 5 1 0 -739.1 ± 208.89
482155 ncm-dbt-05 603859 500 5 341 154 -282.94 ± 20.6 92 152 6 0 0 -766.17 ± 188.02
482154 ncm-dbt-04 569829 500 6 342 152 -282.94 ± 21.2 94 148 8 0 0 -715.51 ± 146.53
482153 ncm-dbt-03 579372 500 3 347 150 -293.28 ± 21.5 99 146 5 0 0 -798.18 ± 231.48
482152 ncm-dbt-01 581735 500 7 338 155 -276.68 ± 20.45 89 153 8 0 0 -715.51 ± 146.53
482151 ncm-dbt-02 591469 500 7 341 152 -280.42 ± 20.9 92 150 8 0 0 -715.51 ± 146.53
482150 ncm-dbt-03 580738 500 5 345 150 -288.06 ± 21.5 97 146 7 0 0 -739.05 ± 163.27
482149 ncm-dbt-04 568832 500 8 338 154 -275.44 ± 21.15 91 148 11 0 0 -659.13 ± 116.77
482148 ncm-dbt-05 606969 500 5 329 166 -268.16 ± 18.84 80 164 6 0 0 -766.17 ± 188.02

Commit

Commit ID e51244cb27151075ac7a05282d0ec615cf93f290
Author MJZ1977
Date 2019-02-21 18:36:48 UTC
ProbCutCount limit dependancy to cutNode Use the ProbCutCount limit `2 + 2 * cutNode` instead of constant 3. STC LLR: -2.95 (-2.94,2.94) [0.50,4.50] Total: 61812 W: 13599 L: 13459 D: 34754 http://tests.stockfishchess.org/tests/view/5c6d19240ebc5925cffca07a LTC LLR: 2.96 (-2.94,2.94) [0.00,3.50] Total: 27549 W: 4614 L: 4363 D: 18572 http://tests.stockfishchess.org/tests/view/5c6d45c10ebc5925cffca7a6 Closes https://github.com/official-stockfish/Stockfish/pull/2015 Bench: 3368889
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