Dev Builds » 20200402-1240

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 06:25:31 584560 4000 60 2598 1342 -260.2 ± 6.67 612 1317 68 3 0 -689.89 ± 41.96
ncm-dbt-02 06:27:05 586893 3984 51 2620 1313 -266.27 ± 6.79 641 1287 64 0 0 -714.84 ± 43.39
ncm-dbt-03 06:26:29 584736 4010 47 2590 1373 -260.0 ± 6.6 609 1327 67 2 0 -697.65 ± 42.34
ncm-dbt-04 06:26:16 568246 4006 58 2618 1330 -262.85 ± 6.77 633 1294 76 0 0 -685.43 ± 39.69
ncm-dbt-05 06:24:33 582139 4000 50 2616 1334 -264.3 ± 6.79 637 1293 69 1 0 -697.21 ± 41.73
20000 266 13042 6692 -262.71 ± 3.01 3132 6518 344 6 0 -696.71 ± 18.42

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
467305 ncm-dbt-04 569509 6 0 4 2 -278.86 ± 222.92 1 2 0 0 0 -1199.83 ± 276.48
467303 ncm-dbt-03 583740 10 0 6 4 -240.47 ± 101.72 1 4 0 0 0 -1199.83 ± 231.31
467302 ncm-dbt-02 587664 484 5 316 163 -264.92 ± 19.42 77 157 8 0 0 -709.76 ± 146.48
467301 ncm-dbt-01 585674 500 7 336 157 -274.22 ± 20.15 87 155 8 0 0 -715.51 ± 146.53
467300 ncm-dbt-05 582736 500 6 337 157 -276.68 ± 21.02 90 152 7 1 0 -694.74 ± 156.93
467299 ncm-dbt-04 567799 500 6 337 157 -276.68 ± 19.86 87 157 6 0 0 -766.17 ± 188.02
467298 ncm-dbt-03 582611 500 5 333 162 -273.0 ± 20.01 85 159 5 1 0 -739.1 ± 208.89
467297 ncm-dbt-02 585843 500 7 321 172 -256.44 ± 18.53 74 166 10 0 0 -676.04 ± 124.55
467296 ncm-dbt-01 583824 500 10 328 162 -261.07 ± 19.38 79 160 11 0 0 -659.13 ± 116.77
467295 ncm-dbt-04 566217 500 10 321 169 -253.02 ± 18.91 74 163 13 0 0 -629.41 ± 104.8
467294 ncm-dbt-05 584034 500 4 323 173 -262.24 ± 18.98 78 163 9 0 0 -694.7 ± 134.18
467293 ncm-dbt-03 585379 500 5 311 184 -247.41 ± 17.1 65 176 9 0 0 -694.7 ± 134.18
467292 ncm-dbt-01 585717 500 10 317 173 -248.52 ± 18.59 70 168 11 1 0 -629.43 ± 115.29
467291 ncm-dbt-02 588302 500 8 334 158 -270.57 ± 20.0 85 156 9 0 0 -694.7 ± 134.18
467290 ncm-dbt-03 583531 500 7 325 168 -261.07 ± 19.11 77 165 7 1 0 -694.74 ± 156.93
467289 ncm-dbt-04 569589 500 8 312 180 -245.19 ± 17.9 67 170 13 0 0 -629.41 ± 104.8
467288 ncm-dbt-05 580282 500 9 322 169 -255.29 ± 18.66 74 165 11 0 0 -659.13 ± 116.77
467287 ncm-dbt-01 583656 500 5 320 175 -257.59 ± 17.25 70 175 5 0 0 -798.18 ± 231.48
467286 ncm-dbt-02 584790 500 6 325 169 -262.24 ± 18.41 76 167 7 0 0 -739.05 ± 163.27
467285 ncm-dbt-04 568275 500 7 319 174 -254.15 ± 18.24 72 168 10 0 0 -676.04 ± 124.55
467284 ncm-dbt-05 581319 500 5 333 162 -272.99 ± 20.29 87 154 9 0 0 -694.7 ± 134.18
467283 ncm-dbt-03 587028 500 7 316 177 -250.76 ± 17.81 69 171 10 0 0 -676.04 ± 124.55
467282 ncm-dbt-01 585506 500 7 324 169 -259.9 ± 18.41 75 167 8 0 0 -715.51 ± 146.53
467281 ncm-dbt-03 584201 500 2 321 177 -262.24 ± 17.52 73 173 4 0 0 -837.28 ± 240.94
467280 ncm-dbt-02 586054 500 7 336 157 -274.22 ± 19.86 86 157 7 0 0 -739.05 ± 163.27
467279 ncm-dbt-05 584369 500 3 335 162 -277.92 ± 19.4 86 160 4 0 0 -837.28 ± 240.94
467278 ncm-dbt-04 568156 500 7 340 153 -279.16 ± 21.04 92 149 9 0 0 -694.7 ± 134.18
467277 ncm-dbt-01 584748 500 8 322 170 -256.44 ± 19.34 76 163 10 1 0 -643.7 ± 122.54
467276 ncm-dbt-02 587749 500 5 324 171 -262.24 ± 18.12 75 169 6 0 0 -766.17 ± 188.02
467275 ncm-dbt-03 586181 500 4 317 179 -255.29 ± 18.39 73 167 10 0 0 -676.04 ± 124.55
467274 ncm-dbt-05 581111 500 10 308 182 -238.65 ± 17.03 61 176 13 0 0 -629.41 ± 104.8
467273 ncm-dbt-04 567482 500 5 321 174 -258.74 ± 18.26 74 168 8 0 0 -715.51 ± 146.53
467272 ncm-dbt-02 589069 500 9 332 159 -266.96 ± 20.39 85 153 12 0 0 -643.67 ± 110.29
467271 ncm-dbt-01 582819 500 7 327 166 -263.41 ± 19.4 80 160 10 0 0 -676.04 ± 124.55
467270 ncm-dbt-03 584916 500 10 330 160 -263.41 ± 19.95 82 156 12 0 0 -643.67 ± 110.29
467269 ncm-dbt-05 580240 500 6 328 166 -265.77 ± 18.84 79 164 7 0 0 -739.05 ± 163.27
467268 ncm-dbt-04 570068 500 11 336 153 -269.36 ± 20.68 87 151 12 0 0 -643.67 ± 110.29
467267 ncm-dbt-01 584537 500 6 324 170 -261.07 ± 18.55 75 169 5 1 0 -739.1 ± 208.89
467266 ncm-dbt-05 583028 500 7 330 163 -266.96 ± 19.56 82 159 9 0 0 -694.7 ± 134.18
467265 ncm-dbt-04 567126 500 4 328 168 -268.16 ± 18.54 79 166 5 0 0 -798.18 ± 231.48
467264 ncm-dbt-03 585042 500 7 331 162 -268.16 ± 19.99 84 156 10 0 0 -676.04 ± 124.55
467263 ncm-dbt-02 585674 500 4 332 164 -272.99 ± 19.12 83 162 5 0 0 -798.18 ± 231.48

Commit

Commit ID 0b8ce4b3037c0efcb2c8bf10598ec3f4fd919e1a
Author protonspring
Date 2020-04-02 12:40:03 UTC
Limit array access in Position This is a non-functional code style change that routes all position array accesses to single methods, and adds an assert to check correctness. Passed STC LLR: 2.94 (-2.94,2.94) {-1.50,0.50} Total: 37312 W: 7378 L: 7246 D: 22688 Ptnml(0-2): 606, 4280, 8762, 4392, 616 https://tests.stockfishchess.org/tests/view/5e7c0c69e42a5c3b3ca2eb3d closes https://github.com/official-stockfish/Stockfish/pull/2595 No functional change.
Copyright 2011–2026 Next Chess Move LLC