Dev Builds » 20200701-0533

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 06:28:39 582570 3982 79 2547 1356 -251.77 ± 6.58 574 1322 93 2 0 -641.05 ± 35.76
ncm-dbt-02 06:29:23 585863 3994 65 2543 1386 -252.14 ± 6.54 575 1330 90 2 0 -647.17 ± 36.37
ncm-dbt-03 06:29:46 585628 3994 57 2558 1379 -255.41 ± 6.48 582 1337 78 0 0 -680.29 ± 39.16
ncm-dbt-04 06:29:03 568622 4034 65 2593 1376 -255.68 ± 6.64 605 1318 94 0 0 -648.94 ± 35.56
ncm-dbt-05 06:29:39 582019 3996 69 2547 1380 -251.96 ± 6.62 583 1312 103 0 0 -630.98 ± 33.93
20000 335 12788 6877 -253.39 ± 2.94 2919 6619 458 4 0 -648.96 ± 15.95

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
450317 ncm-dbt-04 570869 34 1 18 15 -190.78 ± 38.14 1 15 1 0 0 -607.06 ± 394.07
450316 ncm-dbt-02 585801 494 11 313 170 -247.04 ± 18.81 69 165 12 1 0 -614.05 ± 109.18
450315 ncm-dbt-01 583154 482 14 313 155 -252.08 ± 20.34 74 152 14 1 0 -585.71 ± 99.39
450314 ncm-dbt-03 586054 494 5 315 174 -256.17 ± 17.49 69 172 6 0 0 -764.05 ± 187.99
450313 ncm-dbt-05 582903 496 11 321 164 -254.72 ± 19.75 77 156 15 0 0 -602.4 ± 95.9
450312 ncm-dbt-04 569949 500 8 311 181 -244.09 ± 17.22 64 175 11 0 0 -659.13 ± 116.77
450311 ncm-dbt-02 588047 500 10 311 179 -241.91 ± 17.72 64 174 11 1 0 -629.43 ± 115.29
450310 ncm-dbt-03 584537 500 10 318 172 -249.64 ± 18.21 70 168 12 0 0 -643.67 ± 110.29
450309 ncm-dbt-01 584453 500 9 314 177 -246.3 ± 17.78 67 171 12 0 0 -643.67 ± 110.29
450308 ncm-dbt-05 583028 500 10 305 185 -235.44 ± 17.62 62 171 17 0 0 -581.38 ± 88.96
450307 ncm-dbt-04 567522 500 3 325 172 -265.77 ± 18.25 77 168 5 0 0 -798.18 ± 231.48
450306 ncm-dbt-05 581194 500 8 322 170 -256.44 ± 19.6 78 158 14 0 0 -616.18 ± 100.06
450305 ncm-dbt-03 586350 500 7 330 163 -266.96 ± 18.99 80 163 7 0 0 -739.05 ± 163.27
450304 ncm-dbt-01 581569 500 10 321 169 -253.02 ± 18.91 74 163 13 0 0 -629.41 ± 104.8
450303 ncm-dbt-02 588941 500 7 318 175 -253.02 ± 18.1 71 169 10 0 0 -676.04 ± 124.55
450302 ncm-dbt-04 567086 500 10 322 168 -254.15 ± 20.08 79 154 17 0 0 -581.38 ± 88.96
450301 ncm-dbt-03 584790 500 5 321 174 -258.74 ± 18.82 76 164 10 0 0 -676.04 ± 124.55
450300 ncm-dbt-01 583321 500 8 316 176 -249.64 ± 17.94 69 170 11 0 0 -659.13 ± 116.77
450299 ncm-dbt-02 585928 500 12 316 172 -245.19 ± 18.16 68 168 14 0 0 -616.18 ± 100.06
450298 ncm-dbt-05 580157 500 11 312 177 -241.91 ± 17.46 64 173 13 0 0 -629.41 ± 104.8
450297 ncm-dbt-04 569709 500 10 331 159 -264.59 ± 20.89 86 149 15 0 0 -603.84 ± 95.91
450296 ncm-dbt-03 586477 500 6 320 174 -256.44 ± 18.53 74 166 10 0 0 -676.04 ± 124.55
450295 ncm-dbt-01 583070 500 8 316 176 -249.64 ± 17.11 66 176 8 0 0 -715.51 ± 146.53
450294 ncm-dbt-05 583782 500 6 325 169 -262.24 ± 19.26 79 161 10 0 0 -676.04 ± 124.55
450293 ncm-dbt-02 584748 500 7 320 173 -255.29 ± 18.66 74 165 11 0 0 -659.13 ± 116.77
450292 ncm-dbt-04 568037 500 6 325 169 -262.24 ± 18.98 78 163 9 0 0 -694.7 ± 134.18
450291 ncm-dbt-03 586435 500 8 325 167 -259.9 ± 19.51 79 159 12 0 0 -643.67 ± 110.29
450290 ncm-dbt-05 583363 500 8 319 173 -253.02 ± 18.37 72 167 11 0 0 -659.13 ± 116.77
450289 ncm-dbt-01 582694 500 8 332 160 -268.16 ± 19.99 84 156 10 0 0 -676.04 ± 124.55
450288 ncm-dbt-02 585000 500 5 330 165 -269.36 ± 19.57 83 159 8 0 0 -715.51 ± 146.53
450287 ncm-dbt-04 568593 500 6 313 181 -248.52 ± 17.52 67 173 10 0 0 -676.04 ± 124.55
450286 ncm-dbt-03 586308 500 9 320 171 -253.02 ± 18.37 72 167 11 0 0 -659.13 ± 116.77
450285 ncm-dbt-01 581111 500 11 317 172 -247.41 ± 18.96 71 165 13 1 0 -603.86 ± 103.96
450284 ncm-dbt-02 584076 500 5 320 175 -257.59 ± 19.22 77 161 12 0 0 -643.67 ± 110.29
450283 ncm-dbt-05 582277 500 8 317 175 -250.76 ± 18.88 73 163 14 0 0 -616.18 ± 100.06
450282 ncm-dbt-04 566770 500 15 332 153 -259.9 ± 20.81 84 149 17 0 0 -581.38 ± 88.96
450281 ncm-dbt-01 581194 500 11 318 171 -248.52 ± 18.06 69 169 12 0 0 -643.67 ± 110.29
450280 ncm-dbt-02 584369 500 8 315 177 -248.52 ± 18.06 69 169 12 0 0 -643.67 ± 110.29
450279 ncm-dbt-04 569071 500 6 316 178 -251.89 ± 17.68 69 172 9 0 0 -694.7 ± 134.18
450278 ncm-dbt-03 584076 500 7 309 184 -243.0 ± 16.8 62 178 10 0 0 -676.04 ± 124.55
450277 ncm-dbt-05 579455 500 7 326 167 -262.24 ± 18.98 78 163 9 0 0 -694.7 ± 134.18

Commit

Commit ID 110068808b51344ac59f8c6a0846f5dfdf670392
Author Joost VandeVondele
Date 2020-07-01 05:33:05 UTC
Provide WDL statistics A number of engines, GUIs and tournaments start to report WDL estimates along or instead of scores. This patch enables reporting of those stats in a more or less standard way (http://www.talkchess.com/forum3/viewtopic.php?t=72140) The model this reporting uses is based on data derived from a few million fishtest LTC games, given a score and a game ply, a win rate is provided that matches rather closely, especially in the intermediate range [0.05, 0.95] that data. Some data is shown at https://github.com/glinscott/fishtest/wiki/UsefulData#win-loss-draw-statistics-of-ltc-games-on-fishtest Making the conversion game ply dependent is important for a good fit, and is in line with experience that a +1 score in the early midgame is more likely a win than in the late endgame. Even when enabled, the printing of the info causes no significant overhead. Passed STC: LLR: 2.94 (-2.94,2.94) {-1.50,0.50} Total: 197112 W: 37226 L: 37347 D: 122539 Ptnml(0-2): 2591, 21025, 51464, 20866, 2610 https://tests.stockfishchess.org/tests/view/5ef79ef4f993893290cc146b closes https://github.com/official-stockfish/Stockfish/pull/2778 No functional change
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