Dev Builds » 20200916-1856

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 06:41:54 583660 4000 191 1917 1892 -160.42 ± 4.46 90 1565 326 19 0 -399.81 ± 18.91
ncm-dbt-02 06:42:22 586421 4000 184 1965 1851 -166.34 ± 4.55 118 1559 309 14 0 -414.48 ± 19.43
ncm-dbt-03 06:42:14 586247 4000 213 1927 1860 -159.15 ± 4.46 96 1532 362 10 0 -390.56 ± 17.92
ncm-dbt-04 06:40:20 567117 4000 221 1938 1841 -159.46 ± 4.62 98 1546 332 23 1 -391.57 ± 18.73
ncm-dbt-05 06:42:35 582384 4000 201 1911 1888 -158.72 ± 4.6 92 1551 335 19 3 -392.08 ± 18.65
20000 1010 9658 9332 -160.81 ± 2.03 494 7753 1664 85 4 -397.51 ± 8.35

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
459668 ncm-dbt-05 582945 500 29 239 232 -155.54 ± 12.56 10 192 46 2 0 -381.7 ± 51.25
459667 ncm-dbt-03 586774 500 29 235 236 -152.18 ± 12.53 9 190 49 2 0 -370.41 ± 49.56
459666 ncm-dbt-02 585464 500 24 242 234 -162.35 ± 13.66 17 186 45 2 0 -385.59 ± 51.85
459665 ncm-dbt-04 567047 500 28 246 226 -162.35 ± 12.36 11 198 39 2 0 -410.58 ± 55.96
459664 ncm-dbt-01 585632 500 18 242 240 -167.53 ± 12.45 12 203 32 3 0 -433.94 ± 61.95
459663 ncm-dbt-05 585674 500 27 238 235 -156.39 ± 13.15 11 193 42 4 0 -381.7 ± 53.64
459662 ncm-dbt-02 585759 500 21 251 228 -172.78 ± 14.09 22 188 38 2 0 -415.05 ± 56.74
459661 ncm-dbt-04 566296 500 37 240 223 -149.68 ± 13.27 10 187 49 4 0 -356.21 ± 49.54
459660 ncm-dbt-01 584706 500 28 243 229 -159.78 ± 13.8 16 186 45 3 0 -377.87 ± 51.84
459659 ncm-dbt-03 587325 500 24 245 231 -164.93 ± 12.63 13 197 38 2 0 -415.05 ± 56.74
459658 ncm-dbt-05 584495 500 30 250 220 -164.07 ± 13.98 19 184 45 2 0 -385.59 ± 51.85
459657 ncm-dbt-02 587325 500 22 252 226 -172.78 ± 12.98 18 195 36 1 0 -433.94 ± 58.41
459656 ncm-dbt-04 566375 500 25 243 232 -162.35 ± 12.58 10 202 34 4 0 -415.05 ± 59.75
459655 ncm-dbt-01 582444 500 22 237 241 -159.78 ± 12.75 11 196 40 3 0 -397.72 ± 55.14
459654 ncm-dbt-03 587197 500 28 241 231 -158.08 ± 13.27 14 187 47 2 0 -377.87 ± 50.67
459653 ncm-dbt-04 566849 500 19 247 234 -171.02 ± 12.42 14 202 32 2 0 -444.09 ± 62.18
459652 ncm-dbt-05 577233 500 21 247 232 -169.27 ± 14.51 17 198 31 2 2 -429.05 ± 62.62
459651 ncm-dbt-01 581735 500 30 249 221 -163.21 ± 12.75 14 192 43 1 0 -401.92 ± 53.07
459650 ncm-dbt-02 588515 500 19 243 238 -167.53 ± 12.45 14 197 38 1 0 -424.28 ± 56.73
459649 ncm-dbt-03 587919 500 21 241 238 -164.07 ± 12.0 12 196 42 0 0 -415.04 ± 53.59
459648 ncm-dbt-01 582611 500 21 237 242 -160.64 ± 11.53 8 201 40 1 0 -415.05 ± 55.18
459647 ncm-dbt-05 587155 500 30 235 235 -151.35 ± 13.2 9 191 47 2 1 -370.41 ± 50.67
459646 ncm-dbt-04 565941 500 30 243 227 -158.08 ± 14.85 18 183 43 6 0 -363.2 ± 52.65
459645 ncm-dbt-02 584201 500 17 252 231 -177.21 ± 12.13 13 213 20 4 0 -490.71 ± 78.0
459644 ncm-dbt-03 584916 500 25 245 230 -164.07 ± 12.0 10 202 36 2 0 -424.28 ± 58.4
459643 ncm-dbt-01 582193 500 19 244 237 -168.4 ± 12.85 13 203 30 4 0 -433.94 ± 63.67
459642 ncm-dbt-04 567165 500 24 241 235 -161.49 ± 12.64 13 192 44 1 0 -397.72 ± 52.42
459641 ncm-dbt-02 585632 500 27 242 231 -159.78 ± 12.3 12 191 47 0 0 -393.59 ± 50.43
459640 ncm-dbt-05 578424 500 20 235 245 -159.78 ± 12.52 9 201 36 4 0 -406.2 ± 58.04
459639 ncm-dbt-03 584622 500 31 249 220 -162.35 ± 12.81 15 188 47 0 0 -393.59 ± 50.43
459638 ncm-dbt-01 585548 500 25 237 238 -157.23 ± 12.01 9 195 45 1 0 -393.6 ± 51.79
459637 ncm-dbt-02 586985 500 29 248 223 -163.21 ± 13.61 15 193 38 4 0 -397.72 ± 56.46
459636 ncm-dbt-05 583196 500 22 232 246 -155.54 ± 12.34 8 197 42 3 0 -389.56 ± 53.75
459635 ncm-dbt-04 569230 500 25 234 241 -154.7 ± 12.17 8 195 45 2 0 -385.59 ± 51.85
459634 ncm-dbt-03 584411 500 27 230 243 -149.68 ± 12.87 11 182 56 1 0 -352.8 ± 46.04
459633 ncm-dbt-05 579951 500 22 235 243 -158.08 ± 11.72 9 195 46 0 0 -397.71 ± 51.02
459632 ncm-dbt-04 568037 500 33 244 223 -156.39 ± 13.97 14 187 46 2 1 -374.11 ± 51.25
459631 ncm-dbt-01 584411 500 28 228 244 -147.19 ± 12.57 7 189 51 3 0 -356.21 ± 48.54
459630 ncm-dbt-02 587494 500 25 235 240 -155.54 ± 11.42 7 196 47 0 0 -393.59 ± 50.43
459629 ncm-dbt-03 586816 500 28 241 231 -158.08 ± 12.63 12 190 47 1 0 -385.59 ± 50.59

Commit

Commit ID 5f426d8667feda65eaf1eca699f629d31e170d43
Author xoto10
Date 2020-09-16 18:56:40 UTC
Use 2 * bestMoveChanges. NNUE appears to provide a more stable eval than the classic eval, so the time use dependencies on bestMoveChanges, fallingEval, etc may need to change to make the best use of available time. This change doubles the effect of totBestMoveChanges when giving more time because the choice of best move is unstable. STC: LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 101928 W: 11995 L: 11698 D: 78235 Elo +0.78 Ptnml(0-2): 592, 8707, 32103, 8936, 626 https://tests.stockfishchess.org/tests/view/5f538a462d02727c56b36cec LTC: LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 186392 W: 10383 L: 9877 D: 166132 Elo +0.81 Ptnml(0-2): 207, 8370, 75539, 8870, 210 https://tests.stockfishchess.org/tests/view/5f54a9712d02727c56b36d5a closes https://github.com/official-stockfish/Stockfish/pull/3119 Bench 4222126
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