Dev Builds » 20200731-0755

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 06:31:18 583142 4000 80 2512 1408 -245.2 ± 6.41 541 1353 103 3 0 -621.05 ± 33.93
ncm-dbt-02 06:31:12 587423 4000 71 2555 1374 -252.46 ± 6.6 584 1316 100 0 0 -636.42 ± 34.45
ncm-dbt-03 06:31:43 586232 3990 75 2540 1375 -250.65 ± 6.71 585 1296 113 1 0 -611.03 ± 32.37
ncm-dbt-04 06:32:12 568643 4016 84 2552 1380 -248.83 ± 6.58 572 1326 108 2 0 -616.92 ± 33.13
ncm-dbt-05 06:32:42 582341 3994 79 2556 1359 -251.99 ± 6.65 585 1308 103 1 0 -627.46 ± 33.94
20000 389 12715 6896 -249.81 ± 2.95 2867 6599 527 7 0 -622.37 ± 14.86

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
450144 ncm-dbt-04 568156 16 0 11 5 -292.66 ± 121.99 3 5 0 0 0 -1199.83 ± 190.04
450143 ncm-dbt-03 586901 490 10 317 163 -255.6 ± 20.3 77 154 13 1 0 -600.24 ± 103.95
450142 ncm-dbt-01 583992 500 10 313 177 -244.09 ± 17.49 65 173 12 0 0 -643.67 ± 110.29
450141 ncm-dbt-05 581485 494 6 322 166 -263.22 ± 19.25 78 160 9 0 0 -692.56 ± 134.16
450140 ncm-dbt-02 588558 500 6 320 174 -256.44 ± 18.25 73 168 9 0 0 -694.7 ± 134.18
450139 ncm-dbt-04 569509 500 14 315 171 -241.91 ± 18.98 70 161 19 0 0 -561.34 ± 83.33
450138 ncm-dbt-03 588472 500 8 311 181 -244.09 ± 18.01 67 169 14 0 0 -616.18 ± 100.06
450137 ncm-dbt-01 581319 500 12 315 173 -244.09 ± 17.75 66 171 13 0 0 -629.41 ± 104.8
450136 ncm-dbt-05 583154 500 12 298 190 -226.0 ± 16.82 55 176 19 0 0 -561.34 ± 83.33
450135 ncm-dbt-02 589882 500 8 327 165 -262.24 ± 19.53 80 159 11 0 0 -659.13 ± 116.77
450134 ncm-dbt-04 565390 500 5 304 191 -239.73 ± 15.8 57 185 8 0 0 -715.51 ± 146.53
450133 ncm-dbt-03 584958 500 11 311 178 -240.82 ± 18.09 66 168 16 0 0 -592.27 ± 92.24
450132 ncm-dbt-01 585548 500 10 319 171 -250.76 ± 18.88 72 166 11 1 0 -629.43 ± 115.29
450131 ncm-dbt-05 584958 500 15 326 159 -253.02 ± 19.93 78 155 17 0 0 -581.38 ± 88.96
450130 ncm-dbt-02 586181 500 9 317 174 -249.64 ± 18.47 71 166 13 0 0 -629.41 ± 104.8
450129 ncm-dbt-04 570188 500 9 317 174 -249.64 ± 18.21 69 171 9 1 0 -659.17 ± 131.36
450128 ncm-dbt-03 583908 500 10 326 164 -258.74 ± 19.63 79 158 13 0 0 -629.41 ± 104.8
450127 ncm-dbt-01 583196 500 12 311 177 -239.73 ± 18.2 66 167 17 0 0 -581.38 ± 88.96
450126 ncm-dbt-05 585506 500 6 328 166 -265.77 ± 19.13 80 162 8 0 0 -715.51 ± 146.53
450125 ncm-dbt-02 585379 500 8 321 171 -255.29 ± 18.93 75 163 12 0 0 -643.67 ± 110.29
450124 ncm-dbt-04 568554 500 12 324 164 -254.15 ± 19.57 77 158 15 0 0 -603.84 ± 95.91
450123 ncm-dbt-03 585970 500 12 303 185 -231.21 ± 17.78 61 169 20 0 0 -552.07 ± 80.89
450122 ncm-dbt-01 580199 500 7 312 181 -246.3 ± 17.78 67 171 12 0 0 -643.67 ± 110.29
450121 ncm-dbt-05 582987 500 10 317 173 -248.52 ± 18.33 70 167 13 0 0 -629.41 ± 104.8
450120 ncm-dbt-04 567244 500 12 316 172 -245.19 ± 18.92 71 162 17 0 0 -581.38 ± 88.96
450119 ncm-dbt-02 586435 500 9 317 174 -249.64 ± 17.67 68 172 10 0 0 -676.04 ± 124.55
450118 ncm-dbt-01 583908 500 11 305 184 -234.38 ± 17.97 62 171 16 1 0 -571.11 ± 91.87
450117 ncm-dbt-03 584790 500 7 327 166 -263.41 ± 19.4 80 160 10 0 0 -676.04 ± 124.55
450116 ncm-dbt-04 568236 500 13 334 153 -264.59 ± 20.89 86 149 15 0 0 -603.84 ± 95.91
450115 ncm-dbt-05 579001 500 9 312 179 -244.1 ± 18.27 67 170 12 1 0 -616.2 ± 109.19
450114 ncm-dbt-02 587622 500 10 325 165 -257.59 ± 20.01 80 155 15 0 0 -603.84 ± 95.91
450113 ncm-dbt-03 588047 500 13 323 164 -251.89 ± 20.03 78 154 18 0 0 -571.09 ± 86.01
450112 ncm-dbt-01 583782 500 8 323 169 -257.59 ± 19.48 77 162 10 1 0 -643.7 ± 122.54
450111 ncm-dbt-04 567878 500 10 310 180 -240.82 ± 17.84 64 173 12 1 0 -616.2 ± 109.19
450110 ncm-dbt-05 580779 500 8 322 170 -256.44 ± 18.8 75 164 11 0 0 -659.13 ± 116.77
450109 ncm-dbt-02 588174 500 10 318 172 -249.64 ± 19.24 74 160 16 0 0 -592.27 ± 92.24
450108 ncm-dbt-03 586816 500 4 322 174 -261.07 ± 18.83 77 164 9 0 0 -694.7 ± 134.18
450107 ncm-dbt-01 583196 500 10 314 176 -245.19 ± 17.63 66 172 12 0 0 -643.67 ± 110.29
450106 ncm-dbt-05 580862 500 13 331 156 -261.07 ± 20.19 82 154 14 0 0 -616.18 ± 100.06
450105 ncm-dbt-04 572638 500 9 321 170 -254.15 ± 19.05 75 162 13 0 0 -629.41 ± 104.8
450104 ncm-dbt-02 587155 500 11 310 179 -239.73 ± 17.44 63 173 14 0 0 -616.18 ± 100.06

Commit

Commit ID 62d3106caa2f5acf5ba32500cc19912b8f10612c
Author UnaiCorzo
Date 2020-07-31 07:55:56 UTC
Remove late irreversible move extension We simplify away the late irreversible move extension, which does not seem to be necessary in the current master. STC LLR: 2.93 (-2.94,2.94) {-1.50,0.50} Total: 38584 W: 7464 L: 7342 D: 23778 Ptnml(0-2): 581, 4328, 9365, 4424, 594 https://tests.stockfishchess.org/tests/view/5f1c9669c09435d870cb9de9 LTC LLR: 2.94 (-2.94,2.94) {-1.50,0.50} Total: 27840 W: 3417 L: 3353 D: 21070 Ptnml(0-2): 120, 2315, 8994, 2363, 128 https://tests.stockfishchess.org/tests/view/5f1d2e22c09435d870cb9e21 closes https://github.com/official-stockfish/Stockfish/pull/2836 bench: 4829420
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