Dev Builds » 20200128-1528

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 06:30:18 584720 4002 52 2600 1350 -261.47 ± 6.66 618 1313 69 1 0 -697.3 ± 41.73
ncm-dbt-02 06:28:32 587004 4000 44 2613 1343 -264.74 ± 6.74 634 1303 61 2 0 -712.81 ± 44.45
ncm-dbt-03 06:28:32 585418 4000 60 2637 1303 -265.93 ± 6.89 652 1273 75 0 0 -687.51 ± 39.96
ncm-dbt-04 06:29:26 567623 4000 55 2619 1326 -264.0 ± 6.76 635 1294 71 0 0 -697.2 ± 41.11
ncm-dbt-05 06:29:59 585177 3998 47 2611 1340 -264.19 ± 6.77 632 1304 59 4 0 -707.37 ± 45.02
20000 258 13080 6662 -264.06 ± 3.02 3171 6487 335 7 0 -700.22 ± 18.67

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
471314 ncm-dbt-01 583531 2 0 2 0 -1041.08 ± 395.59 1 0 0 0 0 -1129.65 ± 376.02
471313 ncm-dbt-03 583447 500 9 335 156 -270.57 ± 20.0 85 156 9 0 0 -694.7 ± 134.18
471312 ncm-dbt-05 584790 498 2 334 162 -279.58 ± 19.95 88 156 5 0 0 -797.48 ± 231.46
471311 ncm-dbt-02 585885 500 7 322 171 -257.59 ± 19.22 77 161 12 0 0 -643.67 ± 110.29
471310 ncm-dbt-01 586901 500 7 310 183 -244.09 ± 17.22 64 175 11 0 0 -659.13 ± 116.77
471309 ncm-dbt-04 566572 500 4 323 173 -262.24 ± 18.12 75 169 6 0 0 -766.17 ± 188.02
471308 ncm-dbt-03 587622 500 11 331 158 -263.41 ± 20.22 83 154 13 0 0 -629.41 ± 104.8
471307 ncm-dbt-05 583740 500 6 332 162 -270.57 ± 19.71 84 158 8 0 0 -715.51 ± 146.53
471306 ncm-dbt-02 588047 500 4 327 169 -266.96 ± 19.28 81 161 8 0 0 -715.51 ± 146.53
471305 ncm-dbt-01 584790 500 4 332 164 -272.99 ± 19.42 84 160 6 0 0 -766.17 ± 188.02
471304 ncm-dbt-04 568156 500 10 335 155 -269.36 ± 20.13 85 155 10 0 0 -676.04 ± 124.55
471303 ncm-dbt-03 586181 500 8 326 166 -261.07 ± 19.11 78 162 10 0 0 -676.04 ± 124.55
471302 ncm-dbt-05 590438 500 7 317 176 -251.89 ± 17.68 69 172 9 0 0 -694.7 ± 134.18
471301 ncm-dbt-01 581111 500 6 322 172 -258.74 ± 18.26 74 168 8 0 0 -715.51 ± 146.53
471300 ncm-dbt-02 586731 500 5 323 172 -261.07 ± 17.97 74 170 6 0 0 -766.17 ± 188.02
471299 ncm-dbt-04 568077 500 5 328 167 -266.96 ± 19.56 82 159 9 0 0 -694.7 ± 134.18
471298 ncm-dbt-03 585253 500 9 329 162 -263.41 ± 19.12 79 162 9 0 0 -694.7 ± 134.18
471297 ncm-dbt-05 582987 500 5 323 172 -261.07 ± 19.11 77 165 7 1 0 -694.74 ± 156.93
471296 ncm-dbt-02 589710 500 4 341 155 -284.21 ± 20.75 93 151 6 0 0 -766.17 ± 188.02
471295 ncm-dbt-01 585632 500 8 340 152 -277.92 ± 21.17 92 148 10 0 0 -676.04 ± 124.55
471294 ncm-dbt-04 564919 500 12 324 164 -254.15 ± 19.31 76 160 14 0 0 -616.18 ± 100.06
471293 ncm-dbt-03 584369 500 2 332 166 -275.44 ± 19.11 84 162 4 0 0 -837.28 ± 240.94
471292 ncm-dbt-05 583489 500 5 330 165 -269.36 ± 19.85 84 157 9 0 0 -694.7 ± 134.18
471291 ncm-dbt-01 582861 500 8 308 184 -240.82 ± 16.51 60 180 10 0 0 -676.04 ± 124.55
471290 ncm-dbt-02 586689 500 2 326 172 -268.16 ± 17.93 77 170 3 0 0 -887.58 ± 222.18
471289 ncm-dbt-04 568752 500 7 328 165 -264.59 ± 19.55 81 159 10 0 0 -676.04 ± 124.55
471288 ncm-dbt-03 585928 500 6 321 173 -257.59 ± 18.4 74 167 9 0 0 -694.7 ± 134.18
471287 ncm-dbt-05 584916 500 8 320 172 -254.16 ± 18.24 71 171 7 1 0 -694.74 ± 156.93
471286 ncm-dbt-02 587792 500 8 320 172 -254.16 ± 18.52 72 169 8 1 0 -676.08 ± 142.43
471285 ncm-dbt-01 585379 500 5 328 167 -266.96 ± 18.99 80 163 7 0 0 -739.05 ± 163.27
471284 ncm-dbt-04 568792 500 2 325 173 -266.96 ± 18.4 78 167 5 0 0 -798.18 ± 231.48
471283 ncm-dbt-03 584832 500 9 326 165 -259.9 ± 19.78 80 157 13 0 0 -629.41 ± 104.8
471282 ncm-dbt-05 584453 500 5 329 166 -268.16 ± 18.84 80 164 6 0 0 -766.17 ± 188.02
471281 ncm-dbt-02 585590 500 6 341 153 -281.67 ± 20.75 92 151 7 0 0 -739.05 ± 163.27
471280 ncm-dbt-01 585843 500 8 325 167 -259.9 ± 19.24 77 164 8 1 0 -676.08 ± 142.43
471279 ncm-dbt-04 568554 500 8 320 172 -254.15 ± 17.97 71 170 9 0 0 -694.7 ± 134.18
471278 ncm-dbt-03 585717 500 6 337 157 -276.68 ± 20.45 89 153 8 0 0 -715.51 ± 146.53
471277 ncm-dbt-05 586604 500 9 326 165 -259.9 ± 20.04 79 161 8 2 0 -643.7 ± 134.88
471276 ncm-dbt-02 585590 500 8 313 179 -246.3 ± 18.3 68 170 11 1 0 -629.43 ± 115.29
471275 ncm-dbt-01 586435 500 6 333 161 -271.78 ± 20.15 86 155 9 0 0 -694.7 ± 134.18
471274 ncm-dbt-04 567165 500 7 336 157 -274.22 ± 20.15 87 155 8 0 0 -715.51 ± 146.53

Commit

Commit ID 71e0b5385e2717679a57c6b77d8c7ac5fff3b89f
Author Guenther Demetz
Date 2020-01-28 15:28:56 UTC
More bonus for bestMoves on past PV nodes It looks like it is important to keep past PV (ttPv) nodes as close as possible to current PV nodes. Credits to Mark Tenzer (31m059) & Stefan Geschwentner who first tried ideas on ttPv nodes. STC: https://tests.stockfishchess.org/tests/view/5e2ff5efab2d69d58394fd52 LLR: 2.95 (-2.94,2.94) {-1.00,3.00} Total: 13302 W: 2647 L: 2507 D: 8148 Ptnml(0-2): 237, 1540, 2956, 1632, 260 LTC: https://tests.stockfishchess.org/tests/view/5e2fff38ab2d69d58394fd55 LLR: 2.95 (-2.94,2.94) {0.00,2.00} Total: 15797 W: 2137 L: 1960 D: 11700 Ptnml(0-2): 96, 1443, 4628, 1547, 130 closes https://github.com/official-stockfish/Stockfish/pull/2529 bench: 5545845
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