Dev Builds » 20200307-1014

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 06:25:04 584164 4000 53 2596 1351 -260.93 ± 6.71 620 1304 75 1 0 -682.85 ± 39.97
ncm-dbt-02 06:26:57 586563 4010 51 2588 1371 -259.14 ± 6.5 600 1337 68 0 0 -705.28 ± 42.05
ncm-dbt-03 06:27:15 584851 3996 51 2625 1320 -265.87 ± 6.91 651 1273 73 1 0 -687.33 ± 40.53
ncm-dbt-04 06:26:51 566813 3998 61 2588 1349 -258.79 ± 6.62 604 1321 72 2 0 -685.08 ± 40.8
ncm-dbt-05 06:26:25 583031 3996 56 2620 1320 -264.38 ± 6.95 647 1273 76 1 1 -675.9 ± 39.67
20000 272 13017 6711 -261.8 ± 3.01 3122 6508 364 5 1 -687.04 ± 17.9

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
470197 ncm-dbt-02 585843 10 0 6 4 -240.47 ± 101.72 1 4 0 0 0 -1199.83 ± 231.31
470196 ncm-dbt-05 582903 496 9 320 167 -255.87 ± 18.83 74 163 11 0 0 -657.71 ± 116.76
470195 ncm-dbt-03 585759 496 5 320 171 -260.53 ± 19.14 77 161 10 0 0 -674.62 ± 124.54
470194 ncm-dbt-04 568832 498 7 323 168 -260.21 ± 19.05 77 162 10 0 0 -675.33 ± 124.55
470193 ncm-dbt-01 585126 500 3 328 169 -269.36 ± 18.69 80 165 5 0 0 -798.18 ± 231.48
470192 ncm-dbt-02 585759 500 5 332 163 -271.78 ± 19.57 84 159 7 0 0 -739.05 ± 163.27
470191 ncm-dbt-03 584034 500 5 347 148 -290.66 ± 22.11 99 145 5 1 0 -739.1 ± 208.89
470190 ncm-dbt-05 583196 500 6 325 169 -262.24 ± 18.98 78 163 9 0 0 -694.7 ± 134.18
470189 ncm-dbt-01 586604 500 6 340 154 -280.42 ± 20.9 92 150 8 0 0 -715.51 ± 146.53
470188 ncm-dbt-04 564213 500 7 318 175 -253.02 ± 17.82 70 171 9 0 0 -694.7 ± 134.18
470187 ncm-dbt-02 585169 500 7 328 165 -264.59 ± 18.98 79 163 8 0 0 -715.51 ± 146.53
470186 ncm-dbt-05 583196 500 11 324 165 -255.3 ± 19.97 78 158 13 1 0 -603.86 ± 103.96
470185 ncm-dbt-03 585674 500 6 316 178 -251.89 ± 17.11 67 176 7 0 0 -739.05 ± 163.27
470184 ncm-dbt-01 584622 500 7 327 166 -263.41 ± 20.22 83 154 13 0 0 -629.41 ± 104.8
470183 ncm-dbt-04 569230 500 9 324 167 -257.59 ± 18.68 75 165 10 0 0 -676.04 ± 124.55
470182 ncm-dbt-02 586985 500 10 326 164 -258.74 ± 19.09 77 162 11 0 0 -659.13 ± 116.77
470181 ncm-dbt-05 577684 500 6 329 165 -266.97 ± 20.11 81 163 5 0 1 -739.1 ± 208.89
470180 ncm-dbt-03 583028 500 4 334 162 -275.44 ± 19.71 86 158 6 0 0 -766.17 ± 188.02
470179 ncm-dbt-02 587749 500 7 317 176 -251.89 ± 18.23 71 168 11 0 0 -659.13 ± 116.77
470178 ncm-dbt-01 582527 500 3 320 177 -259.9 ± 17.83 73 171 6 0 0 -766.17 ± 188.02
470177 ncm-dbt-04 564331 500 6 315 179 -250.76 ± 16.97 66 177 7 0 0 -739.05 ± 163.27
470176 ncm-dbt-05 583279 500 7 329 164 -265.77 ± 19.97 83 156 11 0 0 -659.13 ± 116.77
470175 ncm-dbt-03 586308 500 7 333 160 -270.57 ± 20.28 86 154 10 0 0 -676.04 ± 124.55
470174 ncm-dbt-04 565115 500 7 327 166 -263.41 ± 19.4 79 163 7 1 0 -694.74 ± 156.93
470173 ncm-dbt-02 585843 500 7 324 169 -259.9 ± 18.41 75 167 8 0 0 -715.51 ± 146.53
470172 ncm-dbt-01 585169 500 11 329 160 -261.07 ± 19.66 80 158 12 0 0 -643.67 ± 110.29
470171 ncm-dbt-05 583824 500 8 327 165 -262.24 ± 19.53 80 159 11 0 0 -659.13 ± 116.77
470170 ncm-dbt-03 581985 500 8 326 166 -261.07 ± 19.11 78 162 10 0 0 -676.04 ± 124.55
470169 ncm-dbt-01 585421 500 7 315 178 -249.64 ± 17.39 67 174 9 0 0 -694.7 ± 134.18
470168 ncm-dbt-04 565037 500 10 326 164 -258.74 ± 19.63 79 158 13 0 0 -629.41 ± 104.8
470167 ncm-dbt-02 587494 500 6 315 179 -250.76 ± 17.53 68 173 9 0 0 -694.7 ± 134.18
470166 ncm-dbt-01 582152 500 8 319 173 -253.02 ± 18.37 72 167 11 0 0 -659.13 ± 116.77
470165 ncm-dbt-05 584076 500 3 332 165 -274.22 ± 20.44 88 153 9 0 0 -694.7 ± 134.18
470164 ncm-dbt-03 585548 500 9 329 162 -263.41 ± 20.22 83 154 13 0 0 -629.41 ± 104.8
470163 ncm-dbt-04 569949 500 7 329 164 -265.77 ± 19.13 80 162 8 0 0 -715.51 ± 146.53
470162 ncm-dbt-02 588260 500 5 322 173 -259.9 ± 17.83 73 171 6 0 0 -766.17 ± 188.02
470161 ncm-dbt-01 581693 500 8 318 174 -251.89 ± 19.02 73 165 11 1 0 -629.43 ± 115.29
470160 ncm-dbt-05 586097 500 6 334 160 -272.99 ± 19.72 85 158 7 0 0 -739.05 ± 163.27
470159 ncm-dbt-04 567799 500 8 326 166 -261.07 ± 19.38 78 163 8 1 0 -676.08 ± 142.43
470158 ncm-dbt-03 586477 500 7 320 173 -255.29 ± 18.93 75 163 12 0 0 -643.67 ± 110.29
470157 ncm-dbt-02 585970 500 4 318 178 -256.44 ± 17.97 72 170 8 0 0 -715.51 ± 146.53

Commit

Commit ID 37e38639279bf58558b92932739da57e7c2e3bdc
Author Gary Heckman
Date 2020-03-07 10:14:27 UTC
Fix ambiguity between clamp implementations There is an ambiguity between global and std clamp implementations when compiling in c++17, and on certain toolchains that are not strictly conforming to c++11. This is solved by putting our clamp implementation in a namespace. closes https://github.com/official-stockfish/Stockfish/pull/2572 No functional change.
Copyright 2011–2026 Next Chess Move LLC