Dev Builds » 20200711-2032

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 06:28:15 583155 3998 63 2539 1396 -251.5 ± 6.48 569 1339 90 1 0 -651.18 ± 36.38
ncm-dbt-02 06:28:48 586214 4000 74 2539 1387 -249.78 ± 6.42 560 1345 95 0 0 -645.56 ± 35.37
ncm-dbt-03 06:29:13 587158 4012 79 2542 1391 -248.47 ± 6.58 570 1325 109 2 0 -615.15 ± 32.97
ncm-dbt-04 06:29:43 566471 3992 68 2533 1391 -250.48 ± 6.46 563 1340 92 1 0 -647.09 ± 35.97
ncm-dbt-05 06:29:44 581609 3998 74 2542 1382 -250.38 ± 6.58 574 1321 103 1 0 -627.64 ± 33.94
20000 358 12695 6947 -250.12 ± 2.91 2836 6670 489 5 0 -636.78 ± 15.43

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
450187 ncm-dbt-03 587070 12 0 7 5 -231.63 ± 82.16 1 5 0 0 0 -1199.83 ± 215.27
450186 ncm-dbt-04 565076 492 7 313 172 -252.99 ± 18.29 70 166 10 0 0 -673.18 ± 124.53
450185 ncm-dbt-05 581319 498 9 307 182 -239.95 ± 17.77 64 170 15 0 0 -603.12 ± 95.9
450184 ncm-dbt-01 582903 498 2 305 191 -245.43 ± 16.02 60 183 6 0 0 -765.47 ± 188.01
450183 ncm-dbt-02 587197 500 8 324 168 -258.74 ± 18.82 76 164 10 0 0 -676.04 ± 124.55
450182 ncm-dbt-03 587834 500 10 322 168 -254.15 ± 18.52 73 166 11 0 0 -659.13 ± 116.77
450181 ncm-dbt-04 565154 500 9 316 175 -248.52 ± 18.06 69 169 12 0 0 -643.67 ± 110.29
450180 ncm-dbt-05 582611 500 7 320 173 -255.3 ± 18.93 74 166 9 1 0 -659.17 ± 131.36
450179 ncm-dbt-01 582736 500 10 312 178 -243.0 ± 18.38 68 166 16 0 0 -592.27 ± 92.24
450178 ncm-dbt-02 586985 500 16 314 170 -238.65 ± 18.55 67 164 19 0 0 -561.34 ± 83.33
450177 ncm-dbt-03 586223 500 12 326 162 -256.44 ± 19.86 79 156 15 0 0 -603.84 ± 95.91
450176 ncm-dbt-05 575965 500 11 317 172 -247.41 ± 18.7 71 164 15 0 0 -603.84 ± 95.91
450175 ncm-dbt-01 583363 500 6 326 168 -263.41 ± 19.12 79 162 9 0 0 -694.7 ± 134.18
450174 ncm-dbt-04 567244 500 9 323 168 -256.44 ± 19.07 76 162 12 0 0 -643.67 ± 110.29
450173 ncm-dbt-02 584916 500 9 315 176 -247.41 ± 17.92 68 170 12 0 0 -643.67 ± 110.29
450172 ncm-dbt-03 585379 500 12 317 171 -246.3 ± 18.04 68 169 13 0 0 -629.41 ± 104.8
450171 ncm-dbt-05 583279 500 10 320 170 -251.89 ± 19.28 75 160 15 0 0 -603.84 ± 95.91
450170 ncm-dbt-01 582819 500 7 310 183 -244.1 ± 17.75 65 174 10 1 0 -643.7 ± 122.54
450169 ncm-dbt-04 565115 500 7 322 171 -257.59 ± 18.68 75 165 10 0 0 -676.04 ± 124.55
450168 ncm-dbt-02 587452 500 10 324 166 -256.44 ± 19.07 76 162 12 0 0 -643.67 ± 110.29
450167 ncm-dbt-03 589069 500 8 307 185 -239.73 ± 17.44 63 173 14 0 0 -616.18 ± 100.06
450166 ncm-dbt-01 583154 500 11 313 176 -243.0 ± 18.13 67 168 15 0 0 -603.84 ± 95.91
450165 ncm-dbt-05 583866 500 10 328 162 -261.07 ± 19.11 78 162 10 0 0 -676.04 ± 124.55
450164 ncm-dbt-02 586731 500 1 323 176 -265.77 ± 17.33 74 174 2 0 0 -958.31 ± 196.57
450163 ncm-dbt-04 566651 500 7 312 181 -246.3 ± 16.68 63 179 8 0 0 -715.51 ± 146.53
450162 ncm-dbt-03 588430 500 8 321 171 -255.29 ± 18.11 72 169 9 0 0 -694.7 ± 134.18
450161 ncm-dbt-01 584916 500 9 335 156 -270.57 ± 20.56 87 152 11 0 0 -659.13 ± 116.77
450160 ncm-dbt-05 581153 500 11 313 176 -243.0 ± 18.38 68 166 16 0 0 -592.27 ± 92.24
450159 ncm-dbt-02 585717 500 9 306 185 -237.58 ± 16.89 60 177 13 0 0 -629.41 ± 104.8
450158 ncm-dbt-04 566849 500 7 306 187 -239.73 ± 16.91 61 177 12 0 0 -643.67 ± 110.29
450157 ncm-dbt-03 586562 500 10 309 181 -239.74 ± 19.4 70 160 19 1 0 -543.25 ± 83.19
450156 ncm-dbt-01 584159 500 4 319 177 -257.59 ± 17.54 71 173 6 0 0 -766.17 ± 188.02
450155 ncm-dbt-02 585379 500 7 319 174 -254.15 ± 18.24 72 168 10 0 0 -676.04 ± 124.55
450154 ncm-dbt-03 584790 500 9 310 181 -241.91 ± 17.98 65 172 12 1 0 -616.2 ± 109.19
450153 ncm-dbt-04 567205 500 11 319 170 -249.64 ± 19.74 75 159 15 1 0 -581.4 ± 95.42
450152 ncm-dbt-05 578753 500 7 319 174 -254.15 ± 19.05 75 162 13 0 0 -629.41 ± 104.8
450151 ncm-dbt-01 581194 500 14 319 167 -246.3 ± 19.06 72 161 17 0 0 -581.38 ± 88.96
450150 ncm-dbt-03 589069 500 10 323 167 -255.29 ± 19.97 79 155 16 0 0 -592.27 ± 92.24
450149 ncm-dbt-02 585337 500 14 314 172 -240.82 ± 18.34 67 166 17 0 0 -581.38 ± 88.96
450148 ncm-dbt-05 585928 500 9 318 173 -250.76 ± 17.81 69 171 10 0 0 -676.04 ± 124.55
450147 ncm-dbt-04 568474 500 11 322 167 -253.02 ± 18.91 74 163 13 0 0 -629.41 ± 104.8

Commit

Commit ID 6c197c3964ca0c637ff1f646dc7e6653b1bb4b45
Author syzygy1
Date 2020-07-11 20:32:34 UTC
Corrects a functional change in a cleanup patch. This corrects a functional change in https://github.com/official-stockfish/Stockfish/commit/ddcbacd04d1c860e808202ce8c1206c8acdca627 changing evaluation of KPPvK. Bench remains unchanged at low depth With this patch, 8/8/5k1p/8/7p/7K/8/8 b - - 1 11 is again correctly evaluated as a draw. closes https://github.com/official-stockfish/Stockfish/pull/2807 Bench: 4366686
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