Dev Builds » 20210111-1819

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 06:51:46 583664 4000 286 1843 1871 -142.77 ± 4.94 101 1384 486 29 0 -321.19 ± 15.46
ncm-dbt-02 06:50:40 586473 4000 318 1822 1860 -137.37 ± 5.07 100 1344 516 40 0 -302.7 ± 15.01
ncm-dbt-03 06:50:24 585106 4000 281 1800 1919 -138.89 ± 4.95 90 1375 500 34 1 -311.77 ± 15.25
ncm-dbt-04 06:49:54 566982 4000 280 1832 1888 -142.25 ± 5.03 103 1384 475 38 0 -318.62 ± 15.65
ncm-dbt-05 06:51:50 581201 4000 291 1838 1871 -141.74 ± 4.75 82 1407 487 24 0 -324.54 ± 15.44
20000 1456 9135 9409 -140.6 ± 2.21 476 6894 2464 165 1 -315.64 ± 6.86

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
457722 ncm-dbt-01 582485 500 33 237 230 -150.51 ± 14.59 18 171 58 3 0 -333.32 ± 45.35
457721 ncm-dbt-02 587070 500 41 234 225 -141.44 ± 14.33 14 169 63 4 0 -312.48 ± 43.44
457720 ncm-dbt-05 581319 500 25 228 247 -149.68 ± 13.07 12 180 57 1 0 -349.43 ± 45.6
457719 ncm-dbt-04 565626 500 38 237 225 -146.36 ± 15.07 19 165 62 4 0 -315.35 ± 43.81
457718 ncm-dbt-03 584706 500 29 234 237 -151.34 ± 13.6 14 179 55 2 0 -349.43 ± 46.59
457717 ncm-dbt-01 583572 500 30 235 235 -151.34 ± 13.4 12 184 51 3 0 -356.21 ± 48.54
457716 ncm-dbt-02 586308 500 35 216 249 -131.74 ± 14.37 8 174 59 9 0 -295.94 ± 44.72
457715 ncm-dbt-03 584159 500 43 219 238 -127.76 ± 15.25 13 158 72 6 1 -273.0 ± 40.54
457714 ncm-dbt-05 579702 500 31 230 239 -146.36 ± 12.81 11 177 62 0 0 -339.63 ± 43.41
457713 ncm-dbt-04 568991 500 41 231 228 -138.99 ± 13.67 9 177 59 5 0 -318.25 ± 44.96
457712 ncm-dbt-01 584706 500 45 230 225 -134.95 ± 14.13 12 165 69 4 0 -295.94 ± 41.39
457711 ncm-dbt-05 578259 500 33 235 232 -148.85 ± 13.7 12 182 52 4 0 -346.12 ± 48.03
457710 ncm-dbt-04 566060 500 28 225 247 -144.71 ± 14.77 13 179 50 8 0 -327.18 ± 48.58
457709 ncm-dbt-02 584706 500 35 227 238 -140.62 ± 13.8 13 168 67 2 0 -312.48 ± 41.9
457708 ncm-dbt-03 586604 500 34 230 236 -143.89 ± 14.07 12 177 56 5 0 -327.18 ± 46.19
457707 ncm-dbt-04 564527 500 28 231 241 -149.68 ± 13.07 9 189 48 4 0 -359.68 ± 50.07
457706 ncm-dbt-05 584034 500 41 227 232 -135.76 ± 14.64 13 166 65 6 0 -295.94 ± 42.75
457705 ncm-dbt-01 581028 500 27 214 259 -136.56 ± 12.59 5 180 62 3 0 -321.19 ± 43.77
457704 ncm-dbt-02 586350 500 44 225 231 -131.74 ± 14.03 9 169 66 6 0 -293.29 ± 42.41
457703 ncm-dbt-03 584622 500 37 223 240 -135.76 ± 12.81 6 177 64 3 0 -315.35 ± 43.03
457702 ncm-dbt-02 586097 500 44 228 228 -134.15 ± 15.01 14 163 66 7 0 -288.06 ± 42.4
457701 ncm-dbt-01 585337 500 42 232 226 -138.99 ± 14.57 15 164 67 4 0 -301.33 ± 42.04
457700 ncm-dbt-05 578836 500 46 224 230 -129.35 ± 13.17 6 170 70 4 0 -293.29 ± 41.07
457699 ncm-dbt-04 566414 500 39 229 232 -138.99 ± 14.74 13 171 59 7 0 -306.84 ± 44.88
457698 ncm-dbt-03 585126 500 42 211 247 -122.24 ± 14.0 8 159 77 6 0 -265.78 ± 39.12
457697 ncm-dbt-02 587494 500 41 232 227 -139.81 ± 15.23 17 163 64 6 0 -298.62 ± 43.1
457696 ncm-dbt-04 569909 500 38 233 229 -143.07 ± 14.1 13 173 60 4 0 -321.19 ± 44.57
457695 ncm-dbt-01 584453 500 38 230 232 -140.62 ± 13.99 12 172 62 4 0 -315.35 ± 43.81
457694 ncm-dbt-05 581902 500 41 235 224 -142.25 ± 14.48 13 174 57 6 0 -318.25 ± 45.73
457693 ncm-dbt-03 585211 500 32 229 239 -144.71 ± 15.12 17 169 58 6 0 -315.35 ± 45.33
457692 ncm-dbt-02 587155 500 34 234 232 -147.19 ± 13.38 12 178 58 2 0 -339.63 ± 45.29
457691 ncm-dbt-04 566020 500 35 225 240 -138.99 ± 14.03 13 167 67 3 0 -306.84 ± 41.99
457690 ncm-dbt-05 582987 500 37 233 230 -143.89 ± 12.3 6 186 56 2 0 -346.12 ± 46.15
457689 ncm-dbt-03 586477 500 36 223 241 -136.56 ± 13.55 8 176 61 5 0 -312.48 ± 44.19
457688 ncm-dbt-01 583363 500 43 230 227 -136.56 ± 14.79 14 165 65 6 0 -295.94 ± 42.75
457687 ncm-dbt-02 586604 500 44 226 230 -132.54 ± 14.36 13 160 73 4 0 -285.49 ± 40.16
457686 ncm-dbt-04 568315 500 33 221 246 -137.37 ± 14.25 14 163 70 3 0 -298.62 ± 41.01
457685 ncm-dbt-01 584369 500 28 235 237 -153.02 ± 13.32 13 183 52 2 0 -359.68 ± 48.01
457684 ncm-dbt-05 582569 500 37 226 237 -138.18 ± 12.93 9 172 68 1 0 -315.35 ± 41.44
457683 ncm-dbt-03 583950 500 28 231 241 -149.68 ± 13.07 12 180 57 1 0 -349.43 ± 45.6

Commit

Commit ID 87586b3d0c8961c2fc9330e2f8ac2f8c3fe79018
Author Dieter Dobbelaere
Date 2021-01-11 18:19:39 UTC
Use correct chess terms + fix spelling. - "discovered check" (instead of "discovery check") - "en passant" (instead of "en-passant") - "pseudo-legal" before a noun (instead of "pseudo legal") - "3-fold" (instead of "3fold") closes https://github.com/official-stockfish/Stockfish/pull/3294 No functional change.
Copyright 2011–2026 Next Chess Move LLC