Dev Builds » 20190923-0654

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 06:24:06 584515 4010 53 2659 1298 -269.29 ± 6.93 668 1270 67 0 0 -707.9 ± 42.37
ncm-dbt-02 06:25:41 591617 3992 53 2617 1322 -264.76 ± 6.76 636 1292 68 0 0 -704.48 ± 42.05
ncm-dbt-03 06:23:53 578262 4000 68 2641 1291 -265.34 ± 7.03 659 1257 82 2 0 -663.25 ± 38.15
ncm-dbt-04 06:24:32 567678 4000 42 2638 1320 -268.76 ± 6.89 661 1274 65 0 0 -712.81 ± 43.05
ncm-dbt-05 06:25:42 604702 3998 64 2674 1260 -271.07 ± 7.26 695 1223 78 3 0 -667.34 ± 39.11
20000 280 13229 6491 -267.84 ± 3.12 3319 6316 360 5 0 -689.89 ± 18.0

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
481237 ncm-dbt-01 585169 10 0 7 3 -300.84 ± 179.63 2 3 0 0 0 -1199.83 ± 231.31
481236 ncm-dbt-02 592288 492 6 321 165 -263.55 ± 18.75 76 163 7 0 0 -736.21 ± 163.24
481235 ncm-dbt-05 599981 498 6 334 158 -274.61 ± 21.66 91 147 10 1 0 -642.98 ± 122.54
481234 ncm-dbt-04 568713 500 8 325 167 -259.9 ± 18.97 77 163 10 0 0 -676.04 ± 124.55
481233 ncm-dbt-03 577233 500 10 332 158 -265.77 ± 20.51 85 152 13 0 0 -629.41 ± 104.8
481232 ncm-dbt-01 584748 500 9 335 156 -270.57 ± 20.28 86 154 10 0 0 -676.04 ± 124.55
481231 ncm-dbt-02 589326 500 6 325 169 -262.24 ± 18.7 77 165 8 0 0 -715.51 ± 146.53
481230 ncm-dbt-04 569509 500 8 327 165 -262.24 ± 19.26 79 161 10 0 0 -676.04 ± 124.55
481229 ncm-dbt-05 598524 500 10 322 168 -254.15 ± 19.31 76 160 14 0 0 -616.18 ± 100.06
481228 ncm-dbt-03 578259 500 10 329 161 -262.24 ± 21.1 85 150 14 1 0 -592.29 ± 99.42
481227 ncm-dbt-01 584453 500 3 331 166 -272.99 ± 18.82 82 164 4 0 0 -837.28 ± 240.94
481226 ncm-dbt-02 591900 500 8 322 170 -256.44 ± 17.97 72 170 8 0 0 -715.51 ± 146.53
481225 ncm-dbt-05 621398 500 5 318 177 -255.3 ± 18.39 72 170 7 1 0 -694.74 ± 156.93
481224 ncm-dbt-04 568395 500 5 327 168 -265.77 ± 19.69 82 158 10 0 0 -676.04 ± 124.55
481223 ncm-dbt-03 579826 500 7 340 153 -279.16 ± 20.45 90 153 7 0 0 -739.05 ± 163.27
481222 ncm-dbt-01 584285 500 7 327 166 -263.41 ± 19.68 81 158 11 0 0 -659.13 ± 116.77
481221 ncm-dbt-02 591254 500 6 328 166 -265.77 ± 18.84 79 164 7 0 0 -739.05 ± 163.27
481220 ncm-dbt-05 604667 500 13 341 146 -273.0 ± 21.94 92 145 12 1 0 -616.2 ± 109.19
481219 ncm-dbt-01 582819 500 6 324 170 -261.07 ± 18.26 75 168 7 0 0 -739.05 ± 163.27
481218 ncm-dbt-04 566809 500 6 338 156 -277.92 ± 20.3 89 154 7 0 0 -739.05 ± 163.27
481217 ncm-dbt-03 579207 500 8 323 169 -257.59 ± 18.4 74 167 9 0 0 -694.7 ± 134.18
481216 ncm-dbt-02 593672 500 5 332 163 -271.78 ± 19.57 84 159 7 0 0 -739.05 ± 163.27
481215 ncm-dbt-05 600424 500 11 338 151 -271.78 ± 21.25 90 147 13 0 0 -629.41 ± 104.8
481214 ncm-dbt-01 584664 500 6 344 150 -285.48 ± 21.2 95 148 7 0 0 -739.05 ± 163.27
481213 ncm-dbt-03 576619 500 8 323 169 -257.59 ± 19.22 76 164 9 1 0 -659.17 ± 131.36
481212 ncm-dbt-04 567007 500 7 330 163 -266.96 ± 19.56 82 159 9 0 0 -694.7 ± 134.18
481211 ncm-dbt-02 592979 500 5 316 179 -253.02 ± 18.1 71 169 10 0 0 -676.04 ± 124.55
481210 ncm-dbt-01 584411 500 7 336 157 -274.22 ± 21.0 90 149 11 0 0 -659.13 ± 116.77
481209 ncm-dbt-03 577233 500 7 327 166 -263.41 ± 19.12 79 162 9 0 0 -694.7 ± 134.18
481208 ncm-dbt-05 601624 500 5 342 153 -284.21 ± 20.75 93 151 6 0 0 -766.17 ± 188.02
481207 ncm-dbt-04 570188 500 5 327 168 -265.77 ± 19.13 80 162 8 0 0 -715.51 ± 146.53
481206 ncm-dbt-02 589924 500 8 345 147 -284.21 ± 21.93 97 143 10 0 0 -676.04 ± 124.55
481205 ncm-dbt-04 562768 500 3 327 170 -268.16 ± 19.13 81 162 7 0 0 -739.05 ± 163.27
481204 ncm-dbt-05 605929 500 7 337 156 -275.44 ± 20.3 88 154 8 0 0 -715.51 ± 146.53
481203 ncm-dbt-03 577028 500 10 329 161 -262.24 ± 19.8 81 157 12 0 0 -643.67 ± 110.29
481202 ncm-dbt-01 585885 500 5 327 168 -265.77 ± 18.84 79 164 7 0 0 -739.05 ± 163.27
481201 ncm-dbt-01 584201 500 10 328 162 -261.07 ± 19.11 78 162 10 0 0 -676.04 ± 124.55
481200 ncm-dbt-02 591599 500 9 328 163 -262.24 ± 19.53 80 159 11 0 0 -659.13 ± 116.77
481199 ncm-dbt-03 580696 500 8 338 154 -275.44 ± 20.59 89 152 9 0 0 -694.7 ± 134.18
481198 ncm-dbt-04 568037 500 0 337 163 -284.21 ± 20.13 91 155 4 0 0 -837.28 ± 240.94
481197 ncm-dbt-05 605072 500 7 342 151 -281.67 ± 21.05 93 149 8 0 0 -715.51 ± 146.53

Commit

Commit ID 7756344d5d2b93970e7cd423f8cbf6fb1da11b74
Author Stéphane Nicolet
Date 2019-09-23 06:54:20 UTC
Clarify the mapping of files to queenside Author: @nickpelling We replace in the code the obscure expressions mapping files ABCDEFGH to ABCDDCBA by an explicite call to an auxiliary function : old: f = min(f, ~f) new: f = map_to_queenside(f) We used the Golbolt web site (https://godbolt.org) to find the optimal code for the auxiliary function. STC: LLR: 2.96 (-2.94,2.94) [-3.00,1.00] Total: 30292 W: 6756 L: 6651 D: 16885 http://tests.stockfishchess.org/tests/view/5d8676720ebc5971531d6aa1 No functional change
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