Dev Builds » 20210515-0829

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 08:19:36 1967740 3359 2684 23 652 +374.3 +/- 13.34
ncm-et-4 08:18:59 1964775 3339 2636 11 692 +368.74 +/- 12.91
ncm-et-9 08:19:34 1960714 3326 2681 10 635 +384.68 +/- 13.49
ncm-et-10 08:19:08 1958154 3332 2690 12 630 +385.32 +/- 13.55
ncm-et-13 08:19:04 1961493 3330 2644 21 665 +370.13 +/- 13.2
ncm-et-15 08:18:57 1959758 3314 2680 11 623 +386.94 +/- 13.63
20000 16015 88 3897 +378.2 +/- 5.44

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
146751 ncm-et-15 2021-05-16 08:46 00:48:31 1956332 314 259 1 54 +403.68 +/- 47.11
146750 ncm-et-9 2021-05-16 08:46 00:49:14 1959238 326 262 1 63 +382.29 +/- 43.42
146749 ncm-et-10 2021-05-16 08:44 00:49:55 1959716 332 264 2 66 +371.48 +/- 42.45
146748 ncm-et-13 2021-05-16 08:44 00:50:08 1958177 330 258 3 69 +356.84 +/- 41.5
146747 ncm-et-4 2021-05-16 08:43 00:51:15 1964798 339 275 0 64 +392.79 +/- 42.97
146746 ncm-et-3 2021-05-16 08:41 00:53:47 1982636 359 288 6 65 +368.15 +/- 42.78
146745 ncm-et-15 2021-05-16 07:31 01:14:22 1963078 500 409 4 87 +391.57 +/- 36.91
146744 ncm-et-9 2021-05-16 07:30 01:15:06 1963713 500 411 1 88 +401.92 +/- 36.6
146743 ncm-et-13 2021-05-16 07:29 01:14:39 1968777 500 394 5 101 +361.43 +/- 34.18
146742 ncm-et-10 2021-05-16 07:29 01:15:01 1959088 500 405 1 94 +389.56 +/- 35.35
146741 ncm-et-4 2021-05-16 07:29 01:13:54 1967564 500 397 2 101 +372.25 +/- 34.1
146740 ncm-et-3 2021-05-16 07:25 01:15:48 1956854 500 396 3 101 +368.59 +/- 34.13
146739 ncm-et-15 2021-05-16 06:15 01:15:09 1963491 500 399 0 101 +379.77 +/- 33.98
146738 ncm-et-10 2021-05-16 06:14 01:14:16 1963693 500 413 2 85 +404.05 +/- 37.32
146737 ncm-et-9 2021-05-16 06:14 01:15:25 1955575 500 390 1 109 +361.43 +/- 32.7
146736 ncm-et-13 2021-05-16 06:14 01:14:49 1962475 500 407 4 89 +387.57 +/- 36.48
146735 ncm-et-4 2021-05-16 06:13 01:14:39 1962920 500 389 0 111 +361.43 +/- 32.32
146734 ncm-et-3 2021-05-16 06:10 01:14:27 1968314 500 407 3 90 +389.56 +/- 36.25
146733 ncm-et-15 2021-05-16 05:01 01:13:38 1965371 500 408 1 91 +395.65 +/- 35.96
146732 ncm-et-13 2021-05-16 04:59 01:14:12 1960773 500 397 1 102 +374.11 +/- 33.87
146731 ncm-et-9 2021-05-16 04:59 01:14:38 1967566 500 394 1 105 +368.59 +/- 33.35
146730 ncm-et-10 2021-05-16 04:58 01:15:27 1953281 500 398 0 102 +377.87 +/- 33.8
146729 ncm-et-4 2021-05-16 04:58 01:14:54 1964924 500 393 0 107 +368.58 +/- 32.96
146728 ncm-et-3 2021-05-16 04:54 01:14:35 1972341 500 411 0 89 +404.05 +/- 36.31
146727 ncm-et-15 2021-05-16 03:44 01:15:50 1954124 500 406 2 92 +389.56 +/- 35.8
146726 ncm-et-4 2021-05-16 03:43 01:14:35 1963379 500 391 4 105 +357.94 +/- 33.48
146725 ncm-et-13 2021-05-16 03:42 01:15:45 1954355 500 408 2 90 +393.6 +/- 36.22
146724 ncm-et-9 2021-05-16 03:42 01:16:06 1954516 500 407 0 93 +395.65 +/- 35.48
146723 ncm-et-10 2021-05-16 03:41 01:16:34 1957710 500 410 1 89 +399.81 +/- 36.38
146722 ncm-et-3 2021-05-16 03:39 01:14:15 1962163 500 393 1 106 +366.78 +/- 33.19
146721 ncm-et-15 2021-05-16 02:27 01:16:31 1962462 500 402 2 96 +381.7 +/- 35.02
146720 ncm-et-9 2021-05-16 02:27 01:14:20 1961541 500 409 1 90 +397.72 +/- 36.17
146719 ncm-et-4 2021-05-16 02:27 01:15:21 1965071 500 384 3 113 +347.77 +/- 32.18
146718 ncm-et-13 2021-05-16 02:26 01:15:54 1966198 500 394 1 105 +368.59 +/- 33.35
146717 ncm-et-10 2021-05-16 02:26 01:14:13 1956496 500 417 2 81 +412.8 +/- 38.27
146716 ncm-et-3 2021-05-16 02:26 01:13:02 1969549 500 395 6 99 +361.43 +/- 34.54
146715 ncm-et-13 2021-05-16 01:12 01:13:37 1959697 500 386 5 109 +347.77 +/- 32.85
146714 ncm-et-4 2021-05-16 01:12 01:14:21 1964775 500 407 2 91 +391.57 +/- 36.01
146713 ncm-et-15 2021-05-16 01:12 01:14:56 1953449 500 397 1 102 +374.11 +/- 33.87
146712 ncm-et-10 2021-05-16 01:11 01:13:42 1957096 500 383 4 113 +344.48 +/- 32.22
146711 ncm-et-9 2021-05-16 01:11 01:14:45 1962855 500 408 5 87 +387.57 +/- 36.91
146710 ncm-et-3 2021-05-16 01:11 01:13:42 1962324 500 394 4 102 +363.2 +/- 33.99

Commit

Commit ID 61e1c66b7cb1dea9346a9b74e801e4da74ad7591
Author Vizvezdenec
Date 2021-05-15 08:29:39 UTC
Simplification for countermoves based pruning Simplify away two extra conditions in countermoves based pruning. These conditions (both of them) were introduced quite a long time ago via speculative LTCs and seem to no longer bring any benefit. passed STC https://tests.stockfishchess.org/tests/view/609e81f35085663412d08f31 LLR: 2.96 (-2.94,2.94) <-2.50,0.50> Total: 28488 W: 2487 L: 2382 D: 23619 Ptnml(0-2): 87, 1919, 10123, 2032, 83 passed LTC https://tests.stockfishchess.org/tests/view/609e9c085085663412d08f59 LLR: 2.95 (-2.94,2.94) <-2.50,0.50> Total: 33176 W: 1219 L: 1155 D: 30802 Ptnml(0-2): 13, 1036, 14423, 1106, 10 closes https://github.com/official-stockfish/Stockfish/pull/3468 Bench: 4749514
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