Dev Builds » 20201223-1917

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 08:22:05 1970913 3379 2702 17 660 +376.56 +/- 13.25
ncm-et-4 08:21:55 1964682 3329 2666 15 648 +378.19 +/- 13.37
ncm-et-9 08:22:10 1968746 3336 2664 14 658 +376.33 +/- 13.26
ncm-et-10 08:22:11 1960145 3330 2607 24 699 +359.39 +/- 12.88
ncm-et-13 08:21:58 1960881 3281 2614 18 649 +373.39 +/- 13.36
ncm-et-15 08:21:59 1969211 3345 2668 17 660 +374.6 +/- 13.25
20000 15921 105 3974 +372.99 +/- 5.39

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
141732 ncm-et-13 2020-12-24 13:16 00:43:55 1958330 281 229 3 49 +385.86 +/- 49.61
141731 ncm-et-10 2020-12-24 13:10 00:49:25 1962153 330 271 2 57 +396.84 +/- 45.86
141730 ncm-et-4 2020-12-24 13:10 00:49:28 1968312 329 261 1 67 +372.51 +/- 42.03
141729 ncm-et-9 2020-12-24 13:09 00:50:32 1969092 336 253 1 82 +338.04 +/- 37.74
141728 ncm-et-15 2020-12-24 13:08 00:52:09 1968317 345 275 2 68 +373.46 +/- 41.8
141727 ncm-et-3 2020-12-24 13:03 00:56:28 1971271 379 298 2 79 +364.09 +/- 38.66
141726 ncm-et-13 2020-12-24 11:58 01:17:03 1958623 500 383 1 116 +349.43 +/- 31.64
141725 ncm-et-9 2020-12-24 11:54 01:14:10 1969404 500 393 3 104 +363.2 +/- 33.62
141724 ncm-et-4 2020-12-24 11:53 01:16:19 1943443 500 400 6 94 +370.41 +/- 35.47
141723 ncm-et-10 2020-12-24 11:52 01:16:58 1951304 500 374 4 122 +330.23 +/- 30.94
141722 ncm-et-15 2020-12-24 11:51 01:15:54 1966459 500 404 2 94 +385.59 +/- 35.4
141721 ncm-et-3 2020-12-24 11:49 01:12:58 1977165 500 400 2 98 +377.87 +/- 34.64
141720 ncm-et-13 2020-12-24 10:40 01:16:13 1962918 500 404 4 92 +381.7 +/- 35.86
141719 ncm-et-9 2020-12-24 10:38 01:15:05 1970197 500 414 1 85 +408.38 +/- 37.27
141718 ncm-et-10 2020-12-24 10:36 01:14:54 1966461 500 390 5 105 +354.5 +/- 33.5
141717 ncm-et-4 2020-12-24 10:36 01:15:31 1969267 500 410 1 89 +399.81 +/- 36.38
141716 ncm-et-15 2020-12-24 10:35 01:14:32 1974533 500 403 3 94 +381.7 +/- 35.44
141715 ncm-et-3 2020-12-24 10:34 01:14:25 1966787 500 399 2 99 +375.98 +/- 34.46
141714 ncm-et-13 2020-12-24 09:22 01:17:37 1962610 500 410 5 85 +391.57 +/- 37.35
141713 ncm-et-9 2020-12-24 09:21 01:15:38 1977421 500 395 0 105 +372.25 +/- 33.29
141712 ncm-et-10 2020-12-24 09:21 01:14:28 1961538 500 407 4 89 +387.57 +/- 36.48
141711 ncm-et-4 2020-12-24 09:20 01:14:57 1968794 500 402 1 97 +383.64 +/- 34.77
141710 ncm-et-15 2020-12-24 09:19 01:14:35 1976694 500 403 0 97 +387.56 +/- 34.71
141709 ncm-et-3 2020-12-24 09:19 01:13:44 1971892 500 399 4 97 +372.25 +/- 34.89
141708 ncm-et-13 2020-12-24 08:06 01:14:25 1963686 500 392 2 106 +363.2 +/- 33.24
141707 ncm-et-9 2020-12-24 08:05 01:15:15 1962917 500 403 4 93 +379.78 +/- 35.66
141706 ncm-et-4 2020-12-24 08:04 01:15:11 1965998 500 387 3 110 +352.8 +/- 32.64
141705 ncm-et-10 2020-12-24 08:04 01:16:10 1958783 500 388 4 108 +352.8 +/- 32.99
141704 ncm-et-3 2020-12-24 08:03 01:14:46 1971099 500 401 2 97 +379.78 +/- 34.83
141703 ncm-et-15 2020-12-24 08:03 01:15:18 1966613 500 386 4 110 +349.43 +/- 32.67
141702 ncm-et-13 2020-12-24 06:49 01:15:58 1959696 500 408 2 90 +393.6 +/- 36.22
141701 ncm-et-10 2020-12-24 06:48 01:14:26 1962770 500 382 1 117 +347.77 +/- 31.5
141700 ncm-et-9 2020-12-24 06:48 01:15:50 1960626 500 411 1 88 +401.92 +/- 36.6
141699 ncm-et-4 2020-12-24 06:48 01:14:56 1969104 500 409 1 90 +397.72 +/- 36.17
141698 ncm-et-3 2020-12-24 06:47 01:14:51 1970947 500 399 2 99 +375.98 +/- 34.46
141697 ncm-et-15 2020-12-24 06:47 01:14:44 1963073 500 394 1 105 +368.59 +/- 33.35
141696 ncm-et-15 2020-12-24 05:31 01:14:47 1968788 500 403 5 92 +377.87 +/- 35.86
141695 ncm-et-3 2020-12-24 05:31 01:14:53 1967231 500 406 3 91 +387.57 +/- 36.04
141694 ncm-et-4 2020-12-24 05:31 01:15:33 1967858 500 397 2 101 +372.25 +/- 34.1
141693 ncm-et-13 2020-12-24 05:31 01:16:47 1960308 500 388 1 111 +357.94 +/- 32.39
141692 ncm-et-9 2020-12-24 05:31 01:15:40 1971568 500 395 4 101 +364.98 +/- 34.16
141691 ncm-et-10 2020-12-24 05:31 01:15:50 1958012 500 395 4 101 +364.98 +/- 34.16

Commit

Commit ID 45b05328b6d10b1f72786a59d78ae95c17ec40dd
Author FauziAkram
Date 2020-12-23 19:17:57 UTC
Tweak the formulas for unsafeSquares We give more bonus for a special case: If there are some enemy squares occupied or attacked by the enemy on the passed pawn span, but if they are all attacked by our pawn, use new intermediate factor 30. The main credit goes to Rocky for the idea, with additional tuning and tests. Passed STC: LLR: 2.95 (-2.94,2.94) {-0.25,1.25} Total: 96464 W: 19233 L: 18834 D: 58397 Ptnml(0-2): 1683, 11327, 21950, 11452, 1820 https://tests.stockfishchess.org/tests/view/5fdd21ab3932f79192d39357 Passed LTC: LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 81320 W: 10784 L: 10352 D: 60184 Ptnml(0-2): 602, 7524, 24044, 7820, 670 https://tests.stockfishchess.org/tests/view/5fddec983932f79192d393a4 closes https://github.com/official-stockfish/Stockfish/pull/3268 Bench: 4338972
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