Dev Builds » 20200127-0805

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 06:29:29 585186 4016 69 2571 1376 -253.59 ± 6.52 582 1340 84 2 0 -659.88 ± 37.68
ncm-dbt-02 06:28:10 585308 4000 54 2576 1370 -257.88 ± 6.64 602 1321 74 3 0 -676.08 ± 40.18
ncm-dbt-03 06:28:43 585990 4000 62 2568 1370 -255.58 ± 6.55 589 1329 81 1 0 -669.55 ± 38.41
ncm-dbt-04 06:29:40 568021 4002 62 2617 1323 -262.49 ± 6.77 631 1293 77 0 0 -682.94 ± 39.42
ncm-dbt-05 06:29:39 583027 3982 52 2555 1375 -256.78 ± 6.55 589 1326 75 1 0 -682.05 ± 39.97
20000 299 12887 6814 -257.25 ± 2.95 2993 6609 391 7 0 -673.88 ± 17.27

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
471401 ncm-dbt-04 568196 2 0 1 1 -189.7 ± 55.98 0 1 0 0 0 -1129.65 ± 376.02
471400 ncm-dbt-01 588856 16 0 13 3 -393.61 ± 269.53 5 3 0 0 0 -1199.83 ± 190.04
471399 ncm-dbt-05 583656 482 6 314 162 -262.83 ± 20.08 77 155 8 1 0 -669.58 ± 142.39
471398 ncm-dbt-03 585084 500 8 324 168 -258.74 ± 18.54 75 166 9 0 0 -694.7 ± 134.18
471397 ncm-dbt-04 568077 500 10 331 159 -264.59 ± 19.82 82 157 11 0 0 -659.13 ± 116.77
471396 ncm-dbt-02 584369 500 7 320 173 -255.29 ± 18.39 73 167 10 0 0 -676.04 ± 124.55
471395 ncm-dbt-01 583572 500 9 322 169 -255.29 ± 18.93 75 163 12 0 0 -643.67 ± 110.29
471394 ncm-dbt-05 580157 500 10 325 165 -257.59 ± 19.22 77 161 12 0 0 -643.67 ± 110.29
471393 ncm-dbt-03 583908 500 5 315 180 -251.89 ± 18.23 70 171 8 1 0 -676.08 ± 142.43
471392 ncm-dbt-04 566730 500 8 327 165 -262.24 ± 19.26 79 161 10 0 0 -676.04 ± 124.55
471391 ncm-dbt-02 586604 500 6 320 174 -256.44 ± 17.69 71 172 7 0 0 -739.05 ± 163.27
471390 ncm-dbt-01 584874 500 8 319 173 -253.02 ± 18.37 71 170 8 1 0 -676.08 ± 142.43
471389 ncm-dbt-05 582193 500 5 311 184 -247.41 ± 16.82 64 178 8 0 0 -715.51 ± 146.53
471388 ncm-dbt-03 587494 500 10 320 170 -251.89 ± 18.5 72 166 12 0 0 -643.67 ± 110.29
471387 ncm-dbt-02 582485 500 6 340 154 -280.42 ± 20.9 91 153 5 1 0 -739.1 ± 208.89
471386 ncm-dbt-04 566414 500 10 325 165 -257.59 ± 18.95 76 163 11 0 0 -659.13 ± 116.77
471385 ncm-dbt-01 585717 500 12 310 178 -238.66 ± 17.55 62 175 12 1 0 -616.2 ± 109.19
471384 ncm-dbt-05 584874 500 6 313 181 -248.52 ± 17.25 66 175 9 0 0 -694.7 ± 134.18
471383 ncm-dbt-03 584369 500 10 319 171 -250.76 ± 18.35 71 167 12 0 0 -643.67 ± 110.29
471382 ncm-dbt-02 584916 500 6 317 177 -253.02 ± 17.54 69 173 8 0 0 -715.51 ± 146.53
471381 ncm-dbt-04 569829 500 7 322 171 -257.59 ± 18.4 74 167 9 0 0 -694.7 ± 134.18
471380 ncm-dbt-01 584958 500 7 323 170 -258.74 ± 19.09 77 162 11 0 0 -659.13 ± 116.77
471379 ncm-dbt-05 584706 500 5 332 163 -271.78 ± 20.43 87 153 10 0 0 -676.04 ± 124.55
471378 ncm-dbt-03 585000 500 10 318 172 -249.64 ± 18.21 70 168 12 0 0 -643.67 ± 110.29
471377 ncm-dbt-02 585253 500 11 319 170 -249.64 ± 18.99 72 165 12 1 0 -616.2 ± 109.19
471376 ncm-dbt-04 567839 500 8 337 155 -274.22 ± 20.72 89 151 10 0 0 -676.04 ± 124.55
471375 ncm-dbt-01 584076 500 11 316 173 -246.3 ± 18.04 68 169 13 0 0 -629.41 ± 104.8
471374 ncm-dbt-05 583908 500 8 330 162 -265.77 ± 19.97 83 156 11 0 0 -659.13 ± 116.77
471373 ncm-dbt-03 585970 500 6 318 176 -254.15 ± 17.97 71 170 9 0 0 -694.7 ± 134.18
471372 ncm-dbt-02 585042 500 7 319 174 -254.15 ± 18.24 72 168 10 0 0 -676.04 ± 124.55
471371 ncm-dbt-04 567482 500 9 320 171 -253.02 ± 18.1 71 169 10 0 0 -676.04 ± 124.55
471370 ncm-dbt-01 583321 500 7 323 170 -258.74 ± 18.54 75 166 9 0 0 -694.7 ± 134.18
471369 ncm-dbt-05 583154 500 6 311 183 -246.3 ± 17.23 65 175 10 0 0 -676.04 ± 124.55
471368 ncm-dbt-02 587070 500 6 316 178 -251.89 ± 18.5 72 166 12 0 0 -643.67 ± 110.29
471367 ncm-dbt-04 568554 500 7 328 165 -264.59 ± 19.82 82 157 11 0 0 -659.13 ± 116.77
471366 ncm-dbt-03 588771 500 6 323 171 -259.9 ± 19.24 78 161 11 0 0 -659.13 ± 116.77
471365 ncm-dbt-01 585759 500 13 323 164 -251.89 ± 19.53 76 158 16 0 0 -592.27 ± 92.24
471364 ncm-dbt-05 581569 500 6 319 175 -255.29 ± 17.54 70 173 7 0 0 -739.05 ± 163.27
471363 ncm-dbt-03 587325 500 7 331 162 -268.16 ± 19.42 82 160 8 0 0 -715.51 ± 146.53
471362 ncm-dbt-01 585548 500 2 322 176 -263.41 ± 17.36 73 174 3 0 0 -887.58 ± 222.18
471361 ncm-dbt-02 586731 500 5 325 170 -263.41 ± 20.21 82 157 10 1 0 -643.7 ± 122.54
471360 ncm-dbt-04 569071 500 3 326 171 -266.96 ± 18.4 78 167 5 0 0 -798.18 ± 231.48

Commit

Commit ID 6d0eabd5fe2961551477820ab7619e2c31e01ffd
Author Alain SAVARD
Date 2020-01-27 08:05:55 UTC
Dynamic complexity Instead of computing the initiative bonus on the material score + dynamic score compute it on (material score/2) + dynamic score, Passed STC http://tests.stockfishchess.org/tests/view/5e2c4945ab2d69d58394fa8f LLR: 2.94 (-2.94,2.94) {-1.00,3.00} Total: 39387 W: 7594 L: 7386 D: 24407 Ptnml(0-2): 658, 4519, 9165, 4649, 697 Passed LTC http://tests.stockfishchess.org/tests/view/5e2c85ccab2d69d58394faa7 LLR: 2.95 (-2.94,2.94) {0.00,2.00} Total: 32588 W: 4206 L: 3986 D: 24396 Ptnml(0-2): 244, 2909, 9738, 3111, 253 closes https://github.com/official-stockfish/Stockfish/pull/2516 Bench: 4765486
Copyright 2011–2026 Next Chess Move LLC