Dev Builds » 20200511-1841

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 06:25:26 583894 4000 61 2582 1357 -257.74 ± 6.57 599 1323 78 0 0 -680.56 ± 39.16
ncm-dbt-02 06:26:23 586859 4016 56 2636 1324 -264.85 ± 6.97 658 1265 84 1 0 -663.96 ± 37.69
ncm-dbt-03 06:25:15 583954 3992 62 2605 1325 -261.67 ± 6.84 631 1282 82 1 0 -667.07 ± 38.17
ncm-dbt-04 06:26:16 568347 3996 60 2606 1330 -261.74 ± 6.82 632 1282 84 0 0 -667.24 ± 37.69
ncm-dbt-05 06:26:57 584278 3996 59 2578 1359 -257.81 ± 6.75 611 1299 86 2 0 -655.0 ± 37.23
20000 298 13007 6695 -260.75 ± 3.04 3131 6451 414 4 0 -666.58 ± 16.78

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
466659 ncm-dbt-02 587792 16 0 11 5 -292.66 ± 121.99 3 5 0 0 0 -1199.83 ± 190.04
466658 ncm-dbt-01 585295 500 7 329 164 -265.77 ± 19.69 82 158 10 0 0 -676.04 ± 124.55
466657 ncm-dbt-04 570989 496 6 327 163 -267.67 ± 19.75 82 157 9 0 0 -693.28 ± 134.17
466656 ncm-dbt-03 585506 492 7 326 159 -268.38 ± 19.94 82 155 9 0 0 -691.84 ± 134.16
466655 ncm-dbt-05 580821 496 5 320 171 -260.53 ± 19.69 79 157 12 0 0 -642.24 ± 110.28
466654 ncm-dbt-02 586393 500 3 318 179 -257.59 ± 17.54 71 173 6 0 0 -766.17 ± 188.02
466653 ncm-dbt-04 567442 500 11 332 157 -264.59 ± 21.4 88 145 17 0 0 -581.38 ± 88.96
466652 ncm-dbt-03 586901 500 9 325 166 -258.74 ± 20.15 81 154 15 0 0 -603.84 ± 95.91
466651 ncm-dbt-05 584201 500 1 324 175 -266.96 ± 17.16 74 175 1 0 0 -1078.89 ± 154.95
466650 ncm-dbt-01 585126 500 7 316 177 -250.76 ± 18.08 70 169 11 0 0 -659.13 ± 116.77
466649 ncm-dbt-02 588302 500 10 330 160 -263.41 ± 20.48 84 152 14 0 0 -616.18 ± 100.06
466648 ncm-dbt-04 567997 500 8 320 172 -254.15 ± 18.52 73 166 11 0 0 -659.13 ± 116.77
466647 ncm-dbt-03 583405 500 11 332 157 -264.59 ± 20.09 83 155 12 0 0 -643.67 ± 110.29
466646 ncm-dbt-01 586901 500 11 318 171 -248.52 ± 18.06 69 169 12 0 0 -643.67 ± 110.29
466645 ncm-dbt-05 585717 500 7 311 182 -245.2 ± 18.41 68 169 12 1 0 -616.2 ± 109.19
466644 ncm-dbt-02 585379 500 11 327 162 -258.74 ± 20.41 82 152 16 0 0 -592.27 ± 92.24
466643 ncm-dbt-01 584034 500 5 309 186 -245.19 ± 15.95 60 184 6 0 0 -766.17 ± 188.02
466642 ncm-dbt-03 582402 500 8 325 167 -259.9 ± 19.51 79 159 12 0 0 -643.67 ± 110.29
466641 ncm-dbt-04 568474 500 7 327 166 -263.41 ± 20.22 83 154 13 0 0 -629.41 ± 104.8
466640 ncm-dbt-05 583950 500 6 330 164 -268.16 ± 19.71 83 158 9 0 0 -694.7 ± 134.18
466639 ncm-dbt-02 586816 500 6 334 160 -273.0 ± 20.85 88 153 8 1 0 -676.08 ± 142.43
466638 ncm-dbt-03 586181 500 5 318 177 -255.29 ± 17.25 69 175 6 0 0 -766.17 ± 188.02
466637 ncm-dbt-01 583698 500 9 331 160 -265.77 ± 20.51 85 152 13 0 0 -629.41 ± 104.8
466636 ncm-dbt-04 565076 500 2 326 172 -268.16 ± 17.62 76 172 2 0 0 -958.31 ± 196.57
466635 ncm-dbt-05 582277 500 8 319 173 -253.02 ± 18.1 71 169 10 0 0 -676.04 ± 124.55
466634 ncm-dbt-02 587113 500 3 323 174 -263.41 ± 19.12 79 162 9 0 0 -694.7 ± 134.18
466633 ncm-dbt-04 566651 500 10 324 166 -256.44 ± 19.6 78 158 14 0 0 -616.18 ± 100.06
466632 ncm-dbt-03 578753 500 7 319 174 -254.15 ± 18.24 72 168 10 0 0 -676.04 ± 124.55
466631 ncm-dbt-01 584748 500 9 327 164 -261.07 ± 19.38 79 160 11 0 0 -659.13 ± 116.77
466630 ncm-dbt-05 580738 500 8 321 171 -255.29 ± 19.46 77 159 14 0 0 -616.18 ± 100.06
466629 ncm-dbt-02 585421 500 11 333 156 -265.77 ± 19.97 83 156 11 0 0 -659.13 ± 116.77
466628 ncm-dbt-03 584411 500 8 333 159 -269.36 ± 20.95 87 152 10 1 0 -643.7 ± 122.54
466627 ncm-dbt-04 568355 500 8 335 157 -271.78 ± 20.15 86 155 9 0 0 -694.7 ± 134.18
466626 ncm-dbt-01 579413 500 5 337 158 -277.92 ± 20.01 88 156 6 0 0 -766.17 ± 188.02
466625 ncm-dbt-02 586943 500 4 339 157 -281.67 ± 20.75 92 151 7 0 0 -739.05 ± 163.27
466624 ncm-dbt-05 591857 500 15 324 161 -250.76 ± 20.38 78 154 17 1 0 -561.36 ± 88.68
466623 ncm-dbt-03 584076 500 7 327 166 -263.41 ± 18.84 78 164 8 0 0 -715.51 ± 146.53
466622 ncm-dbt-01 581943 500 8 315 177 -248.52 ± 17.25 66 175 9 0 0 -694.7 ± 134.18
466621 ncm-dbt-04 571793 500 8 315 177 -248.52 ± 17.25 66 175 9 0 0 -694.7 ± 134.18
466620 ncm-dbt-02 587579 500 8 321 171 -255.29 ± 19.19 76 161 13 0 0 -629.41 ± 104.8
466619 ncm-dbt-05 584664 500 9 329 162 -263.41 ± 19.68 81 158 11 0 0 -659.13 ± 116.77

Commit

Commit ID 8a1de2655ce9790d5f0360e2baefb0f5c0fe2944
Author Joost VandeVondele
Date 2020-05-11 18:41:49 UTC
Use posix_memalign instead of aligned_alloc should be a little more portable to older linux systems (before glibc-2.16). fixes https://github.com/official-stockfish/Stockfish/issues/2665 closes https://github.com/official-stockfish/Stockfish/pull/2668 No functional change.
Copyright 2011–2026 Next Chess Move LLC