Dev Builds » 20230209-0645

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 09:38:28 1951711 3323 2883 4 436 +458.06 ± 16.32
ncm-et-4 09:38:43 1947800 3347 2888 2 457 +452.4 ± 15.93
ncm-et-9 09:38:42 1944823 3317 2859 3 455 +450.72 ± 15.97
ncm-et-10 09:38:43 1950119 3320 2870 2 448 +454.56 ± 16.09
ncm-et-13 09:38:50 1959372 3363 2892 5 466 +447.31 ± 15.78
ncm-et-15 09:38:44 1956560 3330 2852 6 472 +442.34 ± 15.68
20000 17244 22 2734 +450.83 ± 6.5

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
179710 ncm-et-9 2023-03-17 18:09 00:55:26 1928289 317 276 0 41 +464.1 ± 54.47
179709 ncm-et-10 2023-03-17 18:09 00:55:20 1951802 320 276 0 44 +452.71 ± 52.44
179708 ncm-et-3 2023-03-17 18:08 00:56:34 1955461 323 290 0 33 +507.57 ± 61.27
179707 ncm-et-15 2023-03-17 18:08 00:57:15 1955760 330 273 0 57 +409.77 ± 45.69
179706 ncm-et-4 2023-03-17 18:05 00:59:31 1950412 347 295 1 51 +433.03 ± 48.61
179705 ncm-et-13 2023-03-17 18:02 01:02:56 1960796 363 304 1 58 +418.13 ± 45.43
179704 ncm-et-10 2023-03-17 16:42 01:27:14 1947384 500 431 0 69 +452.04 ± 41.5
179703 ncm-et-9 2023-03-17 16:41 01:27:48 1943095 500 420 0 80 +424.27 ± 38.4
179702 ncm-et-3 2023-03-17 16:40 01:27:29 1954536 500 412 0 88 +406.2 ± 36.53
179701 ncm-et-15 2023-03-17 16:40 01:27:07 1955786 500 429 1 70 +444.09 ± 41.26
179700 ncm-et-4 2023-03-17 16:37 01:28:00 1919060 500 437 0 63 +468.95 ± 43.54
179699 ncm-et-13 2023-03-17 16:36 01:24:47 1967556 500 437 0 63 +468.95 ± 43.54
179698 ncm-et-9 2023-03-17 15:14 01:26:20 1959089 500 436 0 64 +466.03 ± 43.18
179697 ncm-et-10 2023-03-17 15:14 01:27:08 1946491 500 440 0 60 +477.98 ± 44.67
179696 ncm-et-3 2023-03-17 15:13 01:26:46 1958339 500 445 1 54 +490.71 ± 47.28
179695 ncm-et-4 2023-03-17 15:12 01:24:16 1959391 500 431 0 69 +452.04 ± 41.5
179694 ncm-et-15 2023-03-17 15:11 01:28:17 1955745 500 423 2 75 +426.65 ± 39.83
179693 ncm-et-13 2023-03-17 15:11 01:25:16 1962008 500 429 1 70 +444.09 ± 41.26
179692 ncm-et-9 2023-03-17 13:46 01:27:29 1954517 500 427 1 72 +438.95 ± 40.66
179691 ncm-et-4 2023-03-17 13:46 01:25:15 1959589 500 443 0 57 +487.45 ± 45.89
179690 ncm-et-10 2023-03-17 13:45 01:27:36 1945553 500 446 1 53 +494.03 ± 47.75
179689 ncm-et-3 2023-03-17 13:45 01:26:46 1950773 500 431 1 68 +449.35 ± 41.89
179688 ncm-et-15 2023-03-17 13:44 01:26:29 1956505 500 438 0 62 +471.92 ± 43.9
179687 ncm-et-13 2023-03-17 13:43 01:27:04 1952547 500 439 1 60 +471.92 ± 44.73
179686 ncm-et-3 2023-03-17 12:19 01:25:54 1954504 500 435 1 64 +460.32 ± 43.24
179685 ncm-et-15 2023-03-17 12:17 01:25:39 1962486 500 430 0 70 +449.35 ± 41.19
179684 ncm-et-4 2023-03-17 12:17 01:28:01 1949207 500 423 1 76 +429.05 ± 39.52
179683 ncm-et-10 2023-03-17 12:16 01:28:27 1952976 500 422 1 77 +426.65 ± 39.25
179682 ncm-et-9 2023-03-17 12:16 01:28:51 1939077 500 424 1 75 +431.48 ± 39.8
179681 ncm-et-13 2023-03-17 12:16 01:26:27 1955589 500 423 1 76 +429.05 ± 39.52
179662 ncm-et-3 2023-03-17 10:51 01:27:08 1957558 500 429 0 71 +446.7 ± 40.89
179659 ncm-et-15 2023-03-17 10:50 01:26:44 1953154 500 432 2 66 +449.35 ± 42.58
179658 ncm-et-10 2023-03-17 10:50 01:25:42 1956238 500 427 0 73 +441.5 ± 40.29
179657 ncm-et-9 2023-03-17 10:50 01:25:48 1946185 500 433 1 66 +454.76 ± 42.55
179656 ncm-et-4 2023-03-17 10:49 01:27:11 1957401 500 420 0 80 +424.27 ± 38.4
179655 ncm-et-13 2023-03-17 10:48 01:26:32 1958337 500 439 0 61 +474.93 ± 44.28
179600 ncm-et-3 2023-03-17 09:22 01:27:51 1930807 500 441 1 58 +477.99 ± 45.54
179599 ncm-et-9 2023-03-17 09:22 01:27:00 1943515 500 443 0 57 +487.45 ± 45.89
179598 ncm-et-15 2023-03-17 09:22 01:27:13 1956490 500 427 1 72 +438.95 ± 40.66
179597 ncm-et-10 2023-03-17 09:22 01:27:16 1950395 500 428 0 72 +444.08 ± 40.59
179596 ncm-et-4 2023-03-17 09:22 01:26:29 1939544 500 439 0 61 +474.93 ± 44.28
179595 ncm-et-13 2023-03-17 09:22 01:25:48 1958777 500 421 1 78 +424.28 ± 38.99

Commit

Commit ID 8f843633db3faaf447cc191cbaed9f5ddfd374bd
Author Michael Chaly
Date 2023-02-09 06:45:05 UTC
Cleanup and reorder in qsearch This patch is a simplification / code normalisation in qsearch. Adds steps in comments the same way we have in search; Makes a separate "pruning" stage instead of heuristics randomly being spread over qsearch code; Reorders pruning heuristics from least taxing ones to more taxing ones; Removes repeated check for best value not being mated, instead uses 1 check - thus removes some lines of code. Moves prefetch and move setup after pruning - makes no sense to do them if move will actually get pruned. Passed non-regression test: https://tests.stockfishchess.org/tests/view/63dd2c5ff9a50a69252c1413 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 113504 W: 29898 L: 29770 D: 53836 Ptnml(0-2): 287, 11861, 32327, 11991, 286 https://github.com/official-stockfish/Stockfish/pull/4382 Non-functional change.
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