Dev Builds » 20210613-1000

You are viewing an old NCM Stockfish dev build test. You may find the most recent dev build tests using Stockfish 15 as the baseline here.

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 08:15:35 1960569 3332 2730 10 592 +398.06 ± 13.99
ncm-et-4 08:15:47 1961841 3356 2711 15 630 +384.94 ± 13.56
ncm-et-9 08:15:45 1957276 3315 2704 16 595 +392.44 ± 13.96
ncm-et-10 08:16:12 1957751 3319 2701 13 605 +391.45 ± 13.84
ncm-et-13 08:15:31 1962630 3345 2721 15 609 +390.53 ± 13.8
ncm-et-15 08:15:36 1956825 3333 2707 19 607 +388.04 ± 13.83
20000 16274 88 3638 +390.86 ± 5.64

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
148495 ncm-et-9 2021-06-14 04:50 00:47:18 1948275 315 254 1 60 +384.78 ± 44.54
148494 ncm-et-10 2021-06-14 04:50 00:48:06 1957870 319 271 0 48 +435.84 ± 50.05
148493 ncm-et-3 2021-06-14 04:48 00:49:32 1958648 332 276 0 56 +414.28 ± 46.12
148492 ncm-et-15 2021-06-14 04:47 00:50:01 1953740 333 267 5 61 +369.3 ± 44.23
148491 ncm-et-13 2021-06-14 04:47 00:50:15 1963076 345 286 4 55 +399.17 ± 46.7
148490 ncm-et-4 2021-06-14 04:44 00:53:40 1962609 356 278 2 76 +359.05 ± 39.43
148489 ncm-et-10 2021-06-14 03:36 01:12:51 1967859 500 396 2 102 +370.41 ± 33.92
148488 ncm-et-9 2021-06-14 03:35 01:14:06 1957718 500 398 3 99 +372.25 ± 34.49
148487 ncm-et-3 2021-06-14 03:33 01:13:48 1961696 500 406 1 93 +391.57 ± 35.55
148486 ncm-et-15 2021-06-14 03:32 01:14:35 1958172 500 424 1 75 +431.48 ± 39.8
148485 ncm-et-4 2021-06-14 03:31 01:12:07 1968314 500 393 2 105 +364.98 ± 33.41
148484 ncm-et-13 2021-06-14 03:31 01:15:47 1957721 500 403 1 96 +385.59 ± 34.96
148483 ncm-et-10 2021-06-14 02:20 01:15:38 1953901 500 410 2 88 +397.72 ± 36.65
148482 ncm-et-9 2021-06-14 02:19 01:15:10 1951934 500 415 0 85 +412.8 ± 37.2
148481 ncm-et-3 2021-06-14 02:18 01:14:56 1959087 500 398 1 101 +375.98 ± 34.04
148480 ncm-et-13 2021-06-14 02:17 01:12:57 1966624 500 405 4 91 +383.64 ± 36.06
148479 ncm-et-4 2021-06-14 02:16 01:14:35 1951955 500 412 4 84 +397.72 ± 37.58
148478 ncm-et-15 2021-06-14 02:16 01:15:45 1945878 500 400 2 98 +377.87 ± 34.64
148477 ncm-et-10 2021-06-14 01:06 01:13:38 1961542 500 425 1 74 +433.94 ± 40.08
148476 ncm-et-9 2021-06-14 01:06 01:13:18 1966614 500 412 1 87 +404.05 ± 36.82
148475 ncm-et-3 2021-06-14 01:02 01:14:49 1969087 500 408 1 91 +395.65 ± 35.96
148474 ncm-et-13 2021-06-14 01:02 01:14:03 1968625 500 392 2 106 +363.2 ± 33.24
148473 ncm-et-15 2021-06-14 01:01 01:14:16 1950118 500 402 3 95 +379.78 ± 35.24
148472 ncm-et-4 2021-06-14 01:00 01:14:51 1954045 500 400 3 97 +375.98 ± 34.86
148471 ncm-et-9 2021-06-13 23:50 01:15:17 1955571 500 402 5 93 +375.98 ± 35.66
148470 ncm-et-10 2021-06-13 23:49 01:15:44 1961403 500 405 3 92 +385.59 ± 35.84
148469 ncm-et-13 2021-06-13 23:47 01:14:20 1955109 500 412 2 86 +401.92 ± 37.09
148468 ncm-et-3 2021-06-13 23:46 01:15:26 1938338 500 415 1 84 +410.58 ± 37.5
148467 ncm-et-15 2021-06-13 23:46 01:14:12 1962163 500 392 4 104 +359.68 ± 33.64
148466 ncm-et-4 2021-06-13 23:46 01:13:56 1956942 500 407 2 91 +391.57 ± 36.01
148465 ncm-et-9 2021-06-13 22:34 01:15:04 1963731 500 421 2 77 +421.93 ± 39.29
148464 ncm-et-10 2021-06-13 22:34 01:15:08 1943507 500 401 2 97 +379.78 ± 34.83
148463 ncm-et-13 2021-06-13 22:33 01:13:38 1959254 500 418 0 82 +419.61 ± 37.91
148462 ncm-et-3 2021-06-13 22:32 01:13:23 1974981 500 407 2 91 +391.57 ± 36.01
148461 ncm-et-15 2021-06-13 22:32 01:13:15 1960011 500 411 2 87 +399.81 ± 36.87
148460 ncm-et-4 2021-06-13 22:32 01:13:04 1962000 500 414 0 86 +410.58 ± 36.97
148459 ncm-et-3 2021-06-13 21:18 01:13:41 1962148 500 420 4 76 +415.05 ± 39.57
148458 ncm-et-13 2021-06-13 21:18 01:14:31 1968003 500 405 2 93 +387.57 ± 35.6
148457 ncm-et-15 2021-06-13 21:18 01:13:32 1967694 500 411 2 87 +399.81 ± 36.87
148456 ncm-et-9 2021-06-13 21:18 01:15:32 1957093 500 402 4 94 +377.87 ± 35.46
148455 ncm-et-10 2021-06-13 21:18 01:15:07 1958178 500 393 3 104 +363.2 ± 33.62
148454 ncm-et-4 2021-06-13 21:18 01:13:34 1977022 500 407 2 91 +391.57 ± 36.01

Commit

Commit ID e1f181ee643dcaa92c606b74b3abd23dede136cd
Author Vizvezdenec
Date 2021-06-13 10:00:20 UTC
Do less LMR extensions This patch restricts LMR extensions (of non-transposition table moves) from being used when the transposition table move was extended by two plies via singular extension. This may serve to limit search explosions in certain positions. This makes a lot of sense because the precondition for the tt-move to have been singular extended by two plies is that the result of the alternate search (with excluded the tt-move) has been a hard fail low: it is natural to later search less for non tt-moves in this situation. The current state of depth/extensions/reductions management is getting quite tricky in our search algo, see https://github.com/official-stockfish/Stockfish/pull/3546#issuecomment-860174549 for some discussion. Suggestions welcome! Passed STC https://tests.stockfishchess.org/tests/view/60c3f293457376eb8bcaac8d LLR: 2.95 (-2.94,2.94) <-0.50,2.50> Total: 117984 W: 9698 L: 9430 D: 98856 Ptnml(0-2): 315, 7708, 42703, 7926, 340 passed LTC https://tests.stockfishchess.org/tests/view/60c46ea5457376eb8bcaacc7 LLR: 2.97 (-2.94,2.94) <0.50,3.50> Total: 11280 W: 401 L: 302 D: 10577 Ptnml(0-2): 2, 271, 4998, 364, 5 closes https://github.com/official-stockfish/Stockfish/pull/3546 Bench: 4709974
Copyright 2011–2024 Next Chess Move LLC