Dev Builds » 20200517-0810

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 06:27:51 584903 4000 57 2606 1337 -261.8 ± 6.7 622 1306 71 1 0 -692.3 ± 41.12
ncm-dbt-02 06:29:26 585419 3996 68 2575 1353 -256.09 ± 6.77 606 1298 91 3 0 -641.67 ± 36.14
ncm-dbt-03 06:28:05 585374 4000 63 2631 1306 -264.6 ± 7.03 657 1256 85 2 0 -657.16 ± 37.45
ncm-dbt-04 06:28:59 568980 4004 65 2614 1325 -261.43 ± 6.77 627 1296 78 1 0 -676.26 ± 39.16
ncm-dbt-05 06:29:39 582754 4000 82 2601 1317 -257.45 ± 6.95 628 1265 105 2 0 -621.05 ± 33.61
20000 335 13027 6638 -260.26 ± 3.06 3140 6421 430 9 0 -655.97 ± 16.46

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
466486 ncm-dbt-04 570469 4 1 3 0 -190.27 ± 634.3 1 0 1 0 0 -190.5 ± 634.21
466485 ncm-dbt-03 587452 500 3 333 164 -275.44 ± 19.71 86 158 6 0 0 -766.17 ± 188.02
466484 ncm-dbt-02 586308 496 12 311 173 -242.36 ± 19.87 71 159 16 2 0 -550.63 ± 90.59
466483 ncm-dbt-05 583908 500 10 328 162 -261.07 ± 20.45 83 152 15 0 0 -603.84 ± 95.91
466482 ncm-dbt-01 584201 500 6 338 156 -277.92 ± 20.89 91 150 9 0 0 -694.7 ± 134.18
466481 ncm-dbt-04 568514 500 6 333 161 -271.78 ± 19.28 83 161 6 0 0 -766.17 ± 188.02
466480 ncm-dbt-02 585169 500 14 321 165 -248.52 ± 19.35 74 159 17 0 0 -581.38 ± 88.96
466479 ncm-dbt-03 580075 500 7 324 169 -259.9 ± 19.78 80 157 13 0 0 -629.41 ± 104.8
466478 ncm-dbt-05 582235 500 11 328 161 -259.9 ± 19.51 79 159 12 0 0 -643.67 ± 110.29
466477 ncm-dbt-04 571070 500 10 343 147 -279.16 ± 21.61 94 145 11 0 0 -659.13 ± 116.77
466476 ncm-dbt-01 584411 500 6 322 172 -258.74 ± 17.98 73 170 7 0 0 -739.05 ± 163.27
466475 ncm-dbt-03 586943 500 10 328 162 -261.07 ± 19.92 81 156 13 0 0 -629.41 ± 104.8
466474 ncm-dbt-02 586223 500 9 315 176 -247.41 ± 18.18 69 168 13 0 0 -629.41 ± 104.8
466473 ncm-dbt-05 580738 500 10 325 165 -257.59 ± 19.75 78 160 11 1 0 -629.43 ± 115.29
466472 ncm-dbt-04 568116 500 11 341 148 -275.44 ± 21.43 92 146 12 0 0 -643.67 ± 110.29
466471 ncm-dbt-01 587494 500 8 331 161 -266.96 ± 19.56 82 159 9 0 0 -694.7 ± 134.18
466470 ncm-dbt-02 584453 500 5 330 165 -269.36 ± 20.41 86 153 11 0 0 -659.13 ± 116.77
466469 ncm-dbt-03 582819 500 9 339 152 -275.44 ± 21.15 91 148 11 0 0 -659.13 ± 116.77
466468 ncm-dbt-05 581402 500 8 334 158 -270.57 ± 20.28 86 154 10 0 0 -676.04 ± 124.55
466467 ncm-dbt-04 567126 500 6 323 171 -259.9 ± 18.69 76 165 9 0 0 -694.7 ± 134.18
466466 ncm-dbt-01 585928 500 6 308 186 -243.0 ± 16.52 61 180 9 0 0 -694.7 ± 134.18
466465 ncm-dbt-02 587282 500 4 316 180 -254.16 ± 17.97 70 173 6 1 0 -715.55 ± 177.2
466464 ncm-dbt-03 587579 500 4 321 175 -259.9 ± 18.69 76 165 9 0 0 -694.7 ± 134.18
466463 ncm-dbt-05 583363 500 8 329 163 -264.59 ± 19.82 82 157 11 0 0 -659.13 ± 116.77
466462 ncm-dbt-04 568156 500 8 315 177 -248.52 ± 17.52 67 173 10 0 0 -676.04 ± 124.55
466461 ncm-dbt-01 585801 500 7 326 167 -262.24 ± 19.26 78 164 7 1 0 -694.74 ± 156.93
466460 ncm-dbt-03 587155 500 9 322 169 -255.3 ± 19.46 76 162 11 1 0 -629.43 ± 115.29
466459 ncm-dbt-05 583321 500 16 316 168 -240.82 ± 20.24 74 153 22 1 0 -518.96 ± 76.57
466458 ncm-dbt-02 583950 500 10 322 168 -254.15 ± 18.78 74 164 12 0 0 -643.67 ± 110.29
466457 ncm-dbt-04 568912 500 5 314 181 -250.76 ± 17.53 68 173 9 0 0 -694.7 ± 134.18
466456 ncm-dbt-01 585126 500 6 320 174 -256.44 ± 18.25 73 168 9 0 0 -694.7 ± 134.18
466455 ncm-dbt-03 584495 500 15 325 160 -251.89 ± 19.79 77 156 17 0 0 -581.38 ± 88.96
466454 ncm-dbt-05 582193 500 7 323 170 -258.74 ± 18.82 76 164 10 0 0 -676.04 ± 124.55
466453 ncm-dbt-02 582945 500 5 327 168 -265.77 ± 18.84 79 164 7 0 0 -739.05 ± 163.27
466452 ncm-dbt-04 568554 500 8 319 173 -253.02 ± 18.1 71 169 10 0 0 -676.04 ± 124.55
466451 ncm-dbt-01 582193 500 13 335 152 -265.77 ± 20.77 86 150 14 0 0 -616.18 ± 100.06
466450 ncm-dbt-03 586477 500 6 339 155 -279.17 ± 20.75 90 154 5 1 0 -739.1 ± 208.89
466449 ncm-dbt-02 587028 500 9 333 158 -268.16 ± 19.71 83 158 9 0 0 -694.7 ± 134.18
466448 ncm-dbt-04 569909 500 10 323 167 -255.3 ± 19.19 75 164 10 1 0 -643.7 ± 122.54
466447 ncm-dbt-01 584076 500 5 326 169 -264.59 ± 18.7 78 165 7 0 0 -739.05 ± 163.27
466446 ncm-dbt-05 584874 500 12 318 170 -247.41 ± 18.44 70 166 14 0 0 -616.18 ± 100.06

Commit

Commit ID 83c9e5911ef7fe6ff71dc116856fac85bb9076eb
Author protonspring
Date 2020-05-17 08:10:28 UTC
Don't adjust MoveOverhead by increment This is a change to address a potential timing issue for slow networks. Move Overhead was limited by TC increment, which might be problematic if small increments (or sudden death) on slow networks (needing high Move Overhead) are used. STC, sudden death. LLR: 2.94 (-2.94,2.94) {-1.50,0.50} Total: 169368 W: 38023 L: 38054 D: 93291 Ptnml(0-2): 3767, 20250, 36595, 20391, 3681 https://tests.stockfishchess.org/tests/view/5ebf25efe9d85f94dc42986f STC, 10+0.1 LLR: 2.94 (-2.94,2.94) {-1.50,0.50} Total: 83896 W: 16092 L: 16026 D: 51778 Ptnml(0-2): 1401, 9697, 19670, 9795, 1385 https://tests.stockfishchess.org/tests/view/5ec0239de9d85f94dc42991e closes https://github.com/official-stockfish/Stockfish/pull/2684 No functional change.
Copyright 2011–2026 Next Chess Move LLC