Dev Builds » 20200807-0654

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 06:30:33 584376 3990 78 2493 1419 -243.69 ± 6.29 527 1361 107 0 0 -623.91 ± 33.27
ncm-dbt-02 06:32:17 585916 4016 60 2568 1388 -254.44 ± 6.41 577 1355 75 1 0 -683.56 ± 39.97
ncm-dbt-03 06:31:30 584783 4000 65 2556 1379 -253.45 ± 6.55 583 1325 92 0 0 -651.26 ± 35.96
ncm-dbt-04 06:29:55 568099 4000 62 2616 1322 -262.53 ± 6.81 633 1289 77 1 0 -678.31 ± 39.43
ncm-dbt-05 06:31:46 581928 3994 60 2559 1375 -255.12 ± 6.63 592 1317 86 2 0 -654.91 ± 37.23
20000 325 12792 6883 -253.79 ± 2.92 2912 6647 437 4 0 -657.16 ± 16.33

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
462266 ncm-dbt-02 585674 16 0 9 7 -220.93 ± 59.83 1 7 0 0 0 -1199.83 ± 190.04
462265 ncm-dbt-01 584537 490 6 311 173 -253.27 ± 17.8 68 169 8 0 0 -711.94 ± 146.5
462264 ncm-dbt-05 579785 494 6 323 165 -264.41 ± 19.39 79 159 9 0 0 -692.56 ± 134.16
462263 ncm-dbt-03 586477 500 6 329 165 -266.96 ± 18.69 79 165 6 0 0 -766.17 ± 188.02
462262 ncm-dbt-04 570749 500 9 316 175 -248.52 ± 18.59 70 168 11 1 0 -629.43 ± 115.29
462261 ncm-dbt-02 587792 500 4 325 171 -264.59 ± 18.41 77 167 6 0 0 -766.17 ± 188.02
462260 ncm-dbt-01 583866 500 16 308 176 -232.26 ± 17.44 60 172 18 0 0 -571.09 ± 86.01
462259 ncm-dbt-05 583950 500 4 314 182 -251.89 ± 17.11 67 176 7 0 0 -739.05 ± 163.27
462258 ncm-dbt-03 584706 500 7 325 168 -261.07 ± 19.11 78 162 10 0 0 -676.04 ± 124.55
462257 ncm-dbt-04 570108 500 7 327 166 -263.41 ± 18.84 78 164 8 0 0 -715.51 ± 146.53
462256 ncm-dbt-02 586012 500 11 317 172 -247.41 ± 18.7 70 167 12 1 0 -616.2 ± 109.19
462255 ncm-dbt-01 585421 500 6 316 178 -251.89 ± 17.11 67 176 7 0 0 -739.05 ± 163.27
462254 ncm-dbt-05 581402 500 9 329 162 -263.41 ± 20.74 85 150 15 0 0 -603.84 ± 95.91
462253 ncm-dbt-03 581028 500 8 309 183 -241.91 ± 16.66 61 179 10 0 0 -676.04 ± 124.55
462252 ncm-dbt-04 568554 500 10 334 156 -268.16 ± 20.26 85 154 11 0 0 -659.13 ± 116.77
462251 ncm-dbt-02 583866 500 6 324 170 -261.07 ± 18.83 77 164 9 0 0 -694.7 ± 134.18
462250 ncm-dbt-01 583656 500 9 316 175 -248.52 ± 18.85 72 163 15 0 0 -603.84 ± 95.91
462249 ncm-dbt-05 582736 500 9 315 176 -247.41 ± 17.38 66 174 10 0 0 -676.04 ± 124.55
462248 ncm-dbt-04 569589 500 7 326 167 -262.24 ± 18.98 78 163 9 0 0 -694.7 ± 134.18
462247 ncm-dbt-03 585379 500 12 312 176 -240.82 ± 18.09 66 168 16 0 0 -592.27 ± 92.24
462246 ncm-dbt-02 584748 500 8 320 172 -254.15 ± 18.24 72 168 10 0 0 -676.04 ± 124.55
462245 ncm-dbt-01 586139 500 10 321 169 -253.02 ± 19.42 76 159 15 0 0 -603.84 ± 95.91
462244 ncm-dbt-05 579992 500 8 323 169 -257.59 ± 19.75 78 160 11 1 0 -629.43 ± 115.29
462243 ncm-dbt-04 568633 500 8 321 171 -255.29 ± 18.93 75 163 12 0 0 -643.67 ± 110.29
462242 ncm-dbt-03 584453 500 9 332 159 -266.96 ± 21.44 89 145 16 0 0 -592.27 ± 92.24
462241 ncm-dbt-02 585759 500 12 320 168 -249.64 ± 18.21 70 168 12 0 0 -643.67 ± 110.29
462240 ncm-dbt-01 584874 500 12 308 180 -236.51 ± 17.26 61 174 15 0 0 -603.84 ± 95.91
462239 ncm-dbt-04 565587 500 2 334 164 -277.92 ± 19.4 86 160 4 0 0 -837.28 ± 240.94
462238 ncm-dbt-05 579744 500 7 311 182 -245.19 ± 17.63 66 172 12 0 0 -643.67 ± 110.29
462237 ncm-dbt-03 586731 500 6 315 179 -250.76 ± 17.53 68 173 9 0 0 -694.7 ± 134.18
462236 ncm-dbt-02 586393 500 7 322 171 -257.59 ± 18.68 75 165 10 0 0 -676.04 ± 124.55
462235 ncm-dbt-01 584453 500 15 308 177 -233.32 ± 17.83 62 169 19 0 0 -561.34 ± 83.33
462234 ncm-dbt-04 564723 500 11 321 168 -251.89 ± 18.5 72 166 12 0 0 -643.67 ± 110.29
462233 ncm-dbt-03 585042 500 11 314 175 -244.09 ± 18.27 68 167 15 0 0 -603.84 ± 95.91
462232 ncm-dbt-05 583363 500 10 320 170 -251.89 ± 19.28 74 163 12 1 0 -616.2 ± 109.19
462231 ncm-dbt-02 585126 500 8 317 175 -250.76 ± 17.25 67 175 8 0 0 -715.51 ± 146.53
462230 ncm-dbt-01 582068 500 4 305 191 -241.91 ± 16.66 61 179 10 0 0 -676.04 ± 124.55
462229 ncm-dbt-04 566849 500 8 337 155 -274.22 ± 20.72 89 151 10 0 0 -676.04 ± 124.55
462228 ncm-dbt-05 584453 500 7 324 169 -259.9 ± 18.97 77 163 10 0 0 -676.04 ± 124.55
462227 ncm-dbt-03 584453 500 6 320 174 -256.44 ± 18.53 74 166 10 0 0 -676.04 ± 124.55
462226 ncm-dbt-02 587877 500 4 314 182 -251.89 ± 17.4 68 174 8 0 0 -715.51 ± 146.53

Commit

Commit ID 8b8412ef87825d8e341e160585307dc89843b7f6
Author Stefan Geschwentner
Date 2020-08-07 06:54:38 UTC
Add tempo also to NNUE eval. STC: LLR: 2.93 (-2.94,2.94) {-0.50,1.50} Total: 10608 W: 1507 L: 1358 D: 7743 Ptnml(0-2): 94, 945, 3074, 1100, 91 https://tests.stockfishchess.org/tests/view/5f2c5921b3ebe5cbfee85b8b LTC: LLR: 2.94 (-2.94,2.94) {0.25,1.75} Total: 7536 W: 556 L: 448 D: 6532 Ptnml(0-2): 9, 383, 2881, 481, 14 https://tests.stockfishchess.org/tests/view/5f2c6f4461e3b6af64881e95 closes https://github.com/official-stockfish/Stockfish/pull/2919 Bench: 4746616
Copyright 2011–2026 Next Chess Move LLC