Dev Builds » 20201107-1548

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 7. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host Duration Avg Base NPS Games Wins Losses Draws Elo
ncm-et-3 08:27:22 1960849 3321 2550 27 744 +345.88 +/- 12.48
ncm-et-4 08:25:31 1967708 3331 2603 24 704 +358.15 +/- 12.83
ncm-et-9 08:24:42 1968324 3335 2612 22 701 +360.21 +/- 12.85
ncm-et-10 08:22:52 1962604 3332 2580 19 733 +353.31 +/- 12.56
ncm-et-13 08:24:30 1961013 3328 2629 12 687 +368.91 +/- 12.96
ncm-et-15 08:22:32 1970119 3353 2634 20 699 +362.84 +/- 12.87
20000 15608 124 4268 +358.11 +/- 5.2

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
140631 ncm-et-3 2020-11-09 10:39 00:48:05 1961075 321 245 0 76 +348.8 +/- 39.15
140630 ncm-et-4 2020-11-09 10:37 00:49:31 1967868 331 260 3 68 +360.06 +/- 41.82
140629 ncm-et-13 2020-11-09 10:37 00:49:54 1962919 328 270 0 58 +405.3 +/- 45.26
140628 ncm-et-9 2020-11-09 10:36 00:51:10 1965543 335 261 2 72 +357.19 +/- 40.54
140627 ncm-et-10 2020-11-09 10:35 00:51:04 1957728 332 264 0 68 +377.09 +/- 41.59
140626 ncm-et-15 2020-11-09 10:34 00:52:52 1970805 353 271 1 81 +350.16 +/- 38.03
140625 ncm-et-13 2020-11-09 09:21 01:15:21 1964147 500 377 1 122 +339.63 +/- 30.81
140624 ncm-et-4 2020-11-09 09:20 01:16:14 1965849 500 395 3 102 +366.78 +/- 33.96
140623 ncm-et-3 2020-11-09 09:20 01:17:46 1958482 500 391 3 106 +359.68 +/- 33.28
140622 ncm-et-9 2020-11-09 09:20 01:15:08 1970177 500 388 6 106 +349.43 +/- 33.34
140621 ncm-et-10 2020-11-09 09:19 01:15:16 1966769 500 389 3 108 +356.21 +/- 32.96
140620 ncm-et-15 2020-11-09 09:19 01:14:18 1967705 500 397 4 99 +368.59 +/- 34.52
140619 ncm-et-4 2020-11-09 08:03 01:15:41 1968778 500 388 3 109 +354.5 +/- 32.8
140618 ncm-et-10 2020-11-09 08:03 01:14:29 1966011 500 379 2 119 +341.24 +/- 31.27
140617 ncm-et-9 2020-11-09 08:03 01:15:11 1965538 500 407 1 92 +393.6 +/- 35.75
140616 ncm-et-15 2020-11-09 08:03 01:14:28 1965849 500 389 2 109 +357.94 +/- 32.76
140615 ncm-et-13 2020-11-09 08:03 01:16:20 1960926 500 395 1 104 +370.41 +/- 33.52
140614 ncm-et-3 2020-11-09 08:03 01:15:44 1964611 500 366 5 129 +316.8 +/- 30.08
140571 ncm-et-4 2020-11-08 22:16 01:15:42 1973737 500 384 2 114 +349.43 +/- 31.99
140570 ncm-et-9 2020-11-08 22:15 01:16:00 1970788 500 386 1 113 +354.5 +/- 32.09
140569 ncm-et-13 2020-11-08 22:15 01:16:12 1956487 500 405 4 91 +383.64 +/- 36.06
140568 ncm-et-3 2020-11-08 22:14 01:15:40 1960462 500 389 3 108 +356.21 +/- 32.96
140567 ncm-et-15 2020-11-08 22:14 01:14:46 1971572 500 396 3 101 +368.59 +/- 34.13
140566 ncm-et-10 2020-11-08 22:13 01:14:39 1960626 500 385 3 112 +349.43 +/- 32.33
140565 ncm-et-9 2020-11-08 20:58 01:16:10 1970485 500 382 2 116 +346.12 +/- 31.7
140564 ncm-et-15 2020-11-08 20:58 01:15:08 1971583 500 369 5 126 +321.19 +/- 30.45
140563 ncm-et-10 2020-11-08 20:58 01:14:16 1963227 500 385 0 115 +354.5 +/- 31.72
140562 ncm-et-3 2020-11-08 20:58 01:15:20 1963378 500 376 2 122 +336.46 +/- 30.86
140561 ncm-et-4 2020-11-08 20:58 01:17:13 1948782 500 384 2 114 +349.43 +/- 31.99
140560 ncm-et-13 2020-11-08 20:58 01:16:07 1958776 500 402 2 96 +381.7 +/- 35.02
140517 ncm-et-10 2020-11-08 11:08 01:15:50 1967388 500 393 7 100 +356.21 +/- 34.36
140516 ncm-et-3 2020-11-08 11:07 01:18:46 1953781 500 380 6 114 +336.46 +/- 32.11
140515 ncm-et-13 2020-11-08 11:06 01:15:20 1962149 500 390 2 108 +359.68 +/- 32.92
140514 ncm-et-15 2020-11-08 11:06 01:15:51 1967093 500 404 4 92 +381.7 +/- 35.86
140513 ncm-et-9 2020-11-08 11:06 01:15:59 1969865 500 390 4 106 +356.21 +/- 33.31
140512 ncm-et-4 2020-11-08 11:06 01:16:24 1966307 500 396 6 98 +363.2 +/- 34.72
140511 ncm-et-15 2020-11-08 09:50 01:15:09 1976232 500 408 1 91 +395.65 +/- 35.96
140510 ncm-et-10 2020-11-08 09:50 01:17:18 1956484 500 385 4 111 +347.77 +/- 32.52
140509 ncm-et-9 2020-11-08 09:50 01:15:04 1965876 500 398 6 96 +366.78 +/- 35.09
140508 ncm-et-13 2020-11-08 09:50 01:15:16 1961688 500 390 2 108 +359.68 +/- 32.92
140507 ncm-et-3 2020-11-08 09:50 01:16:01 1964155 500 403 8 89 +372.25 +/- 36.42
140506 ncm-et-4 2020-11-08 09:50 01:14:46 1982641 500 396 5 99 +364.98 +/- 34.53

Commit

Commit ID 04a320666efce725ef66d1a84aaef493a880153d
Author Joost VandeVondele
Date 2020-11-07 15:48:02 UTC
Change handling the special case of a single legal move. Using no searching time in case of a single legal move is not beneficial from a strength point of view, and this special case can be easily removed: STC: LLR: 2.93 (-2.94,2.94) {-1.25,0.25} Total: 22472 W: 2458 L: 2357 D: 17657 Ptnml(0-2): 106, 1733, 7453, 1842, 102 https://tests.stockfishchess.org/tests/view/5f926cbc81eda81bd78cb6df LTC: LLR: 2.94 (-2.94,2.94) {-0.75,0.25} Total: 37880 W: 1736 L: 1682 D: 34462 Ptnml(0-2): 22, 1392, 16057, 1448, 21 https://tests.stockfishchess.org/tests/view/5f92a26081eda81bd78cb6fe The advantage of using the normal time management for a single legal move is that scores reported for that move are reasonable, not searching leads to artifacts during games (see e.g. https://tcec-chess.com/#div=sf&game=96&season=19) The disadvantage of using normal time management of a single legal move is that thinking times can be unnaturally long, making it 'painful to watch' in online tournaments. This patch uses normal time management, but caps the used time to 500ms. This should lead to reasonable scores, and be hardly perceptible. closes https://github.com/official-stockfish/Stockfish/pull/3195 closes https://github.com/official-stockfish/Stockfish/pull/3183 variant of a patch suggested by SFisGOD No functional change.
Copyright 2011–2024 Next Chess Move LLC