Dev Builds » 20230313-2341

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 09:38:04 1951519 3330 2849 4 477 +441.96 +/- 15.59
ncm-et-4 09:37:28 1955084 3334 2868 6 460 +447.27 +/- 15.89
ncm-et-9 09:40:08 1950782 3334 2877 6 451 +450.86 +/- 16.05
ncm-et-10 09:40:18 1947880 3337 2871 5 461 +447.83 +/- 15.87
ncm-et-13 09:38:14 1956010 3331 2870 4 457 +449.89 +/- 15.94
ncm-et-15 09:41:25 1946909 3334 2836 2 496 +436.47 +/- 15.28
20000 17171 27 2802 +445.65 +/- 6.42

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
178750 ncm-et-15 2023-03-16 11:59 00:58:30 1940136 334 289 0 45 +456.5 +/- 51.84
178749 ncm-et-10 2023-03-16 11:59 00:58:40 1952978 337 290 0 47 +450.06 +/- 50.65
178748 ncm-et-3 2023-03-16 11:59 00:58:39 1955928 330 280 0 50 +434.54 +/- 48.99
178747 ncm-et-9 2023-03-16 11:59 00:58:35 1945734 334 300 0 34 +508.23 +/- 60.3
178746 ncm-et-4 2023-03-16 11:59 00:58:39 1952698 334 283 0 51 +433.08 +/- 48.49
178745 ncm-et-13 2023-03-16 11:59 00:58:23 1958367 331 280 0 51 +431.38 +/- 48.48
177889 ncm-et-10 2023-03-14 09:52 01:27:58 1951633 500 435 0 65 +463.15 +/- 42.83
177888 ncm-et-15 2023-03-14 09:52 01:26:50 1935794 500 426 0 74 +438.95 +/- 40.01
177887 ncm-et-9 2023-03-14 09:49 01:26:56 1952229 500 439 1 60 +471.92 +/- 44.73
177886 ncm-et-4 2023-03-14 09:48 01:26:58 1953737 500 434 1 65 +457.52 +/- 42.89
177885 ncm-et-13 2023-03-14 09:46 01:27:53 1958175 500 432 1 67 +452.04 +/- 42.22
177884 ncm-et-3 2023-03-14 09:45 01:26:33 1935697 500 419 1 80 +419.61 +/- 38.47
177865 ncm-et-10 2023-03-14 08:25 01:27:00 1943290 500 435 2 63 +457.52 +/- 43.63
177864 ncm-et-15 2023-03-14 08:23 01:28:02 1951316 500 430 0 70 +449.35 +/- 41.19
177863 ncm-et-4 2023-03-14 08:23 01:24:49 1958799 500 420 0 80 +424.27 +/- 38.4
177862 ncm-et-9 2023-03-14 08:22 01:26:29 1952226 500 428 2 70 +438.95 +/- 41.29
177861 ncm-et-13 2023-03-14 08:17 01:28:11 1958041 500 429 0 71 +446.7 +/- 40.89
177860 ncm-et-3 2023-03-14 08:17 01:27:22 1950110 500 437 0 63 +468.95 +/- 43.54
177841 ncm-et-10 2023-03-14 06:57 01:26:55 1950894 500 430 1 69 +446.7 +/- 41.57
177840 ncm-et-15 2023-03-14 06:56 01:26:17 1954818 500 428 0 72 +444.08 +/- 40.59
177839 ncm-et-9 2023-03-14 06:54 01:27:29 1943868 500 430 1 69 +446.7 +/- 41.57
177838 ncm-et-4 2023-03-14 06:54 01:27:58 1955442 500 429 0 71 +446.7 +/- 40.89
177837 ncm-et-13 2023-03-14 06:52 01:24:46 1968177 500 431 0 69 +452.04 +/- 41.5
177836 ncm-et-3 2023-03-14 06:50 01:26:21 1952556 500 431 1 68 +449.35 +/- 41.89
177817 ncm-et-10 2023-03-14 05:30 01:26:00 1959252 500 422 1 77 +426.65 +/- 39.25
177816 ncm-et-15 2023-03-14 05:29 01:26:28 1958826 500 422 1 77 +426.65 +/- 39.25
177815 ncm-et-4 2023-03-14 05:28 01:25:20 1959252 500 437 2 61 +463.16 +/- 44.37
177814 ncm-et-9 2023-03-14 05:27 01:26:35 1955110 500 429 2 69 +441.5 +/- 41.61
177813 ncm-et-13 2023-03-14 05:24 01:27:05 1934506 500 444 0 56 +490.71 +/- 46.32
177812 ncm-et-3 2023-03-14 05:22 01:27:22 1948880 500 435 1 64 +460.32 +/- 43.24
177799 ncm-et-10 2023-03-14 04:03 01:27:09 1947380 500 425 1 74 +433.94 +/- 40.08
177798 ncm-et-15 2023-03-14 04:01 01:27:34 1954504 500 432 0 68 +454.76 +/- 41.82
177797 ncm-et-9 2023-03-14 04:00 01:26:05 1947225 500 429 0 71 +446.7 +/- 40.89
177796 ncm-et-4 2023-03-14 03:59 01:28:14 1945348 500 426 2 72 +433.94 +/- 40.69
177789 ncm-et-13 2023-03-14 03:58 01:25:53 1959236 500 435 2 63 +457.52 +/- 43.63
177788 ncm-et-3 2023-03-14 03:56 01:25:12 1960326 500 422 1 77 +426.65 +/- 39.25
177775 ncm-et-10 2023-03-14 02:35 01:26:36 1929733 500 434 0 66 +460.32 +/- 42.48
177774 ncm-et-4 2023-03-14 02:33 01:25:30 1960316 500 439 1 60 +471.92 +/- 44.73
177773 ncm-et-15 2023-03-14 02:32 01:27:44 1932970 500 409 1 90 +397.72 +/- 36.17
177772 ncm-et-9 2023-03-14 02:31 01:27:59 1959083 500 422 0 78 +429.05 +/- 38.92
177771 ncm-et-13 2023-03-14 02:31 01:26:03 1955569 500 419 1 80 +419.61 +/- 38.47
177770 ncm-et-3 2023-03-14 02:29 01:26:35 1957140 500 425 0 75 +436.43 +/- 39.73

Commit

Commit ID a48573e15fbd18fecb087c9fc02c38a07cece68b
Author Dubslow
Date 2023-03-13 23:41:42 UTC
More negative extensions on nonsingular nonpv nodes. Following up the previous gainer also in this nonsingular node section of code. Credit shared with @FauziAkram for realizing this nonsingular node stuff had some potential, and @XInTheDark for reminding us that !PvNodes better handle extensions/reductions than Pv. Passed STC: https://tests.stockfishchess.org/tests/view/640a7bb32644b62c339457c3 LLR: 2.95 (-2.94,2.94) <0.00,2.00> Total: 136776 W: 36598 L: 36149 D: 64029 Ptnml(0-2): 439, 14834, 37384, 15301, 430 Passed LTC: https://tests.stockfishchess.org/tests/view/640c43a02644b62c3394b23c LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 79536 W: 21363 L: 20984 D: 37189 Ptnml(0-2): 28, 7525, 24285, 7900, 30 closes https://github.com/official-stockfish/Stockfish/pull/4441 Bench: 4444953
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