Dev Builds » 20200521-1211

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 06:28:11 582918 4000 54 2553 1393 -254.59 ± 6.53 584 1332 83 1 0 -665.33 ± 37.93
ncm-dbt-02 06:30:13 586316 4000 76 2555 1369 -251.75 ± 6.59 581 1317 102 0 0 -632.89 ± 34.1
ncm-dbt-03 06:29:50 587005 4000 77 2591 1332 -256.73 ± 6.74 610 1294 96 0 0 -643.69 ± 35.18
ncm-dbt-04 06:30:18 567937 4016 67 2595 1354 -257.3 ± 6.7 610 1310 86 2 0 -655.88 ± 37.23
ncm-dbt-05 06:29:06 581834 3984 64 2609 1311 -262.71 ± 6.97 642 1263 85 2 0 -656.45 ± 37.45
20000 338 12903 6759 -256.59 ± 3.0 3027 6516 452 5 0 -650.5 ± 16.06

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
451004 ncm-dbt-04 568792 16 1 11 4 -254.53 ± 148.36 3 4 1 0 0 -470.09 ± 466.68
451003 ncm-dbt-05 580447 484 8 309 167 -252.96 ± 18.48 69 163 10 0 0 -670.28 ± 124.51
451002 ncm-dbt-03 586139 500 10 312 178 -243.0 ± 17.34 64 174 12 0 0 -643.67 ± 110.29
451001 ncm-dbt-01 580613 500 9 328 163 -262.24 ± 19.26 79 161 10 0 0 -676.04 ± 124.55
451000 ncm-dbt-02 586562 500 13 309 178 -236.51 ± 17.77 63 170 17 0 0 -581.38 ± 88.96
450999 ncm-dbt-04 569509 500 4 323 173 -262.24 ± 19.26 79 161 10 0 0 -676.04 ± 124.55
450998 ncm-dbt-05 584537 500 8 333 159 -269.36 ± 20.95 88 149 13 0 0 -629.41 ± 104.8
450997 ncm-dbt-01 582736 500 4 323 173 -262.24 ± 18.7 77 165 8 0 0 -715.51 ± 146.53
450996 ncm-dbt-03 587919 500 11 326 163 -257.59 ± 20.01 80 155 15 0 0 -603.84 ± 95.91
450995 ncm-dbt-02 585548 500 9 319 172 -251.89 ± 19.02 74 162 14 0 0 -616.18 ± 100.06
450994 ncm-dbt-04 566020 500 12 307 181 -235.44 ± 17.12 60 175 15 0 0 -603.84 ± 95.91
450993 ncm-dbt-05 582152 500 8 330 162 -265.77 ± 20.24 84 154 12 0 0 -643.67 ± 110.29
450992 ncm-dbt-03 588132 500 9 324 167 -257.59 ± 18.4 74 167 9 0 0 -694.7 ± 134.18
450991 ncm-dbt-01 582569 500 7 316 177 -250.76 ± 18.88 73 163 14 0 0 -616.18 ± 100.06
450990 ncm-dbt-02 586562 500 8 319 173 -253.02 ± 18.64 73 165 12 0 0 -643.67 ± 110.29
450989 ncm-dbt-04 568673 500 7 331 162 -268.16 ± 19.13 81 162 7 0 0 -739.05 ± 163.27
450988 ncm-dbt-05 583572 500 5 329 166 -268.16 ± 18.84 80 164 6 0 0 -766.17 ± 188.02
450987 ncm-dbt-01 584453 500 7 316 177 -250.76 ± 18.08 70 169 11 0 0 -659.13 ± 116.77
450986 ncm-dbt-03 591555 500 10 313 177 -244.09 ± 18.01 67 169 14 0 0 -616.18 ± 100.06
450985 ncm-dbt-02 588174 500 12 320 168 -249.64 ± 18.73 72 164 14 0 0 -616.18 ± 100.06
450984 ncm-dbt-04 568156 500 10 323 167 -255.3 ± 19.97 78 158 13 1 0 -603.86 ± 103.96
450983 ncm-dbt-05 581153 500 9 322 169 -255.29 ± 19.19 76 161 13 0 0 -629.41 ± 104.8
450982 ncm-dbt-03 584874 500 7 329 164 -265.77 ± 19.97 83 156 11 0 0 -659.13 ± 116.77
450981 ncm-dbt-01 585759 500 7 321 172 -256.44 ± 19.07 76 162 12 0 0 -643.67 ± 110.29
450980 ncm-dbt-02 586393 500 14 330 156 -258.74 ± 20.15 81 154 15 0 0 -603.84 ± 95.91
450979 ncm-dbt-04 567561 500 10 331 159 -264.59 ± 19.55 81 159 10 0 0 -676.04 ± 124.55
450978 ncm-dbt-05 582903 500 9 323 168 -256.44 ± 19.34 76 163 10 1 0 -643.7 ± 122.54
450977 ncm-dbt-04 568752 500 15 319 166 -245.2 ± 19.65 73 159 17 1 0 -561.36 ± 88.68
450976 ncm-dbt-01 581735 500 11 309 180 -238.66 ± 18.3 65 169 15 1 0 -581.4 ± 95.42
450975 ncm-dbt-03 585928 500 11 325 164 -256.44 ± 19.07 76 162 12 0 0 -643.67 ± 110.29
450974 ncm-dbt-02 583070 500 10 320 170 -251.89 ± 19.53 76 158 16 0 0 -592.27 ± 92.24
450973 ncm-dbt-05 578177 500 8 333 159 -269.36 ± 20.13 85 155 10 0 0 -676.04 ± 124.55
450972 ncm-dbt-04 566888 500 3 330 167 -271.78 ± 18.98 82 163 5 0 0 -798.18 ± 231.48
450971 ncm-dbt-01 584411 500 3 320 177 -259.9 ± 17.53 72 173 5 0 0 -798.18 ± 231.48
450970 ncm-dbt-03 588345 500 8 331 161 -266.96 ± 20.12 84 155 11 0 0 -659.13 ± 116.77
450969 ncm-dbt-02 586943 500 6 316 178 -251.89 ± 17.4 68 174 8 0 0 -715.51 ± 146.53
450968 ncm-dbt-05 581735 500 9 330 161 -264.59 ± 20.63 84 154 11 1 0 -629.43 ± 115.29
450967 ncm-dbt-01 581070 500 6 320 174 -256.44 ± 17.97 72 170 8 0 0 -715.51 ± 146.53
450966 ncm-dbt-04 567086 500 5 320 175 -257.59 ± 18.12 73 169 8 0 0 -715.51 ± 146.53
450965 ncm-dbt-03 583154 500 11 331 158 -263.41 ± 19.95 82 156 12 0 0 -643.67 ± 110.29
450964 ncm-dbt-02 587282 500 4 322 174 -261.07 ± 17.97 74 170 6 0 0 -766.17 ± 188.02

Commit

Commit ID 09c6917d053582267a2960e8c375883e0d9461da
Author Stefan Geschwentner
Date 2020-05-21 12:11:14 UTC
Tweak knight mobility New tuned values for knight mobility in endgames. STC: LLR: 2.94 (-2.94,2.94) {-0.50,1.50} Total: 112576 W: 21999 L: 21644 D: 68933 Ptnml(0-2): 2009, 13084, 25735, 13463, 1997 https://tests.stockfishchess.org/tests/view/5ec58379377121ac09e10272 LTC: LLR: 2.95 (-2.94,2.94) {0.25,1.75} Total: 125192 W: 16200 L: 15671 D: 93321 Ptnml(0-2): 891, 11584, 37182, 11983, 956 https://tests.stockfishchess.org/tests/view/5ec5c0b8377121ac09e1028b Closes https://github.com/official-stockfish/Stockfish/pull/2693 Bench: 4778956
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