Dev Builds » 20210617-1610

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 06:39:51 582436 4000 455 1623 1922 -104.49 ± 5.16 63 1118 745 72 2 -216.6 ± 12.45
ncm-dbt-02 06:39:39 586528 3990 470 1606 1914 -101.73 ± 5.1 45 1134 728 88 0 -213.29 ± 12.62
ncm-dbt-03 06:39:53 586494 4010 459 1625 1926 -104.03 ± 5.17 55 1144 719 86 1 -217.15 ± 12.7
ncm-dbt-04 06:38:06 567902 4000 463 1603 1934 -101.84 ± 5.2 51 1134 720 94 1 -212.37 ± 12.7
ncm-dbt-05 06:40:23 579219 4000 464 1589 1947 -100.42 ± 5.24 56 1110 739 93 2 -207.71 ± 12.53
20000 2311 8046 9643 -102.5 ± 2.31 270 5640 3651 433 6 -213.41 ± 5.63

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
454423 ncm-dbt-03 586139 10 3 5 2 -70.36 ± 79.51 0 2 3 0 0 -147.07 ± 211.27
454422 ncm-dbt-02 587452 490 59 192 239 -96.73 ± 14.31 4 136 94 11 0 -203.37 ± 35.27
454421 ncm-dbt-05 575965 500 65 197 238 -93.95 ± 15.25 8 131 96 15 0 -189.0 ± 34.95
454420 ncm-dbt-01 582027 500 60 197 243 -97.69 ± 13.5 5 133 106 6 0 -204.07 ± 32.73
454419 ncm-dbt-03 586393 500 60 213 227 -109.83 ± 15.58 11 144 82 13 0 -223.94 ± 37.87
454418 ncm-dbt-04 569669 500 47 204 249 -112.91 ± 14.22 6 154 81 9 0 -243.0 ± 38.14
454417 ncm-dbt-02 586901 500 49 205 246 -112.14 ± 14.53 8 149 84 9 0 -236.51 ± 37.42
454416 ncm-dbt-05 578794 500 52 186 262 -95.44 ± 14.84 5 139 91 15 0 -198.34 ± 35.92
454415 ncm-dbt-01 579124 500 60 197 243 -97.69 ± 15.73 11 129 97 12 1 -194.57 ± 34.74
454414 ncm-dbt-04 566651 500 71 205 224 -95.44 ± 14.55 5 137 95 13 0 -198.34 ± 35.12
454413 ncm-dbt-03 586774 500 52 196 252 -102.97 ± 14.34 8 136 98 8 0 -211.87 ± 34.38
454412 ncm-dbt-02 588260 500 56 218 226 -116.77 ± 14.69 8 156 76 10 0 -249.64 ± 39.41
454411 ncm-dbt-05 581402 500 60 196 244 -96.94 ± 15.3 8 135 92 15 0 -196.45 ± 35.72
454410 ncm-dbt-03 588302 500 53 199 248 -104.49 ± 14.04 5 145 91 9 0 -221.9 ± 35.86
454409 ncm-dbt-01 582819 500 59 222 219 -117.55 ± 15.31 10 155 73 12 0 -247.41 ± 40.14
454408 ncm-dbt-04 569151 500 53 194 253 -100.7 ± 14.47 6 140 93 11 0 -209.91 ± 35.49
454407 ncm-dbt-02 583824 500 50 201 249 -108.3 ± 15.28 7 152 76 15 0 -228.08 ± 39.23
454406 ncm-dbt-05 578177 500 56 203 241 -105.25 ± 13.72 4 147 91 8 0 -226.0 ± 35.82
454405 ncm-dbt-03 585464 500 64 209 227 -103.73 ± 13.87 3 149 88 10 0 -223.94 ± 36.53
454404 ncm-dbt-01 584201 500 62 196 242 -95.44 ± 14.1 8 125 110 7 0 -192.71 ± 32.1
454403 ncm-dbt-04 569709 500 63 197 240 -95.44 ± 15.69 9 133 91 17 0 -190.85 ± 35.9
454402 ncm-dbt-02 587707 500 60 195 245 -96.19 ± 14.41 6 134 99 11 0 -198.34 ± 34.31
454401 ncm-dbt-05 578342 500 57 212 231 -111.37 ± 15.0 7 153 79 10 1 -238.66 ± 38.63
454400 ncm-dbt-01 583237 500 48 200 252 -109.07 ± 15.29 12 138 90 10 0 -219.87 ± 36.1
454399 ncm-dbt-04 564801 500 58 213 229 -111.37 ± 14.53 6 153 82 8 1 -240.82 ± 37.9
454398 ncm-dbt-03 583656 500 55 205 240 -107.54 ± 14.21 9 138 97 6 0 -221.9 ± 34.46
454397 ncm-dbt-02 585464 500 71 191 238 -85.04 ± 13.75 2 128 108 12 0 -178.11 ± 32.72
454396 ncm-dbt-05 579992 500 73 191 236 -83.57 ± 15.02 8 117 110 15 0 -164.07 ± 32.48
454395 ncm-dbt-03 588174 500 68 209 223 -100.7 ± 14.92 5 146 84 15 0 -211.87 ± 37.38
454394 ncm-dbt-04 568593 500 58 186 256 -90.96 ± 14.32 5 130 103 12 0 -187.16 ± 33.6
454393 ncm-dbt-01 583321 500 55 196 249 -100.71 ± 15.63 8 141 86 14 1 -207.95 ± 36.95
454392 ncm-dbt-02 586350 500 61 195 244 -95.44 ± 14.1 3 140 95 12 0 -202.15 ± 35.11
454391 ncm-dbt-05 583070 500 54 206 240 -109.07 ± 15.14 9 145 86 9 1 -228.08 ± 36.98
454390 ncm-dbt-03 585717 500 47 205 248 -113.68 ± 14.05 4 159 79 7 1 -251.89 ± 38.63
454389 ncm-dbt-01 582110 500 54 207 239 -109.83 ± 13.56 6 146 93 5 0 -234.38 ± 35.22
454388 ncm-dbt-04 570549 500 52 201 247 -106.77 ± 14.21 5 149 86 10 0 -228.08 ± 36.98
454387 ncm-dbt-02 586266 500 64 209 227 -103.73 ± 14.19 7 139 96 8 0 -215.85 ± 34.78
454386 ncm-dbt-04 564096 500 61 203 236 -101.46 ± 15.36 9 138 89 14 0 -206.01 ± 36.33
454385 ncm-dbt-03 587834 500 57 184 259 -90.22 ± 15.86 10 125 97 18 0 -176.33 ± 34.76
454384 ncm-dbt-01 582652 500 57 208 235 -108.3 ± 13.23 3 151 90 6 0 -236.51 ± 35.94
454383 ncm-dbt-05 578013 500 47 198 255 -108.3 ± 13.89 7 143 94 6 0 -228.08 ± 35.08

Commit

Commit ID 07c84480342ec156b1cbb651966521349ccfa6ee
Author Stéphane Nicolet
Date 2021-06-17 16:10:01 UTC
Revert "Fix for Cygwin's environment build-profile" This reverts commit "Fix for Cygwin's environment build-profile", as it was giving errors for "make clean" on some Windows environments. See comments in https://github.com/official-stockfish/Stockfish/commit/68bf362ea2385a641be9f5ed9ce2acdf55a1ecf1 Possibly somebody can propose a solution that would fix Cygwin builds and not break on other system too, stay tuned! :-) No functional change
Copyright 2011–2026 Next Chess Move LLC