Dev Builds » 20230224-1914

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 09:41:20 1955547 3341 2881 3 457 +451.26 +/- 15.93
ncm-et-4 09:41:34 1956334 3356 2876 7 473 +442.64 +/- 15.67
ncm-et-9 09:41:35 1946258 3324 2848 1 475 +444.73 +/- 15.61
ncm-et-10 09:41:54 1939381 3301 2851 2 448 +453.49 +/- 16.09
ncm-et-13 09:41:31 1951947 3339 2891 6 442 +454.81 +/- 16.22
ncm-et-15 09:41:39 1954623 3339 2880 2 457 +451.95 +/- 15.93
20000 17227 21 2752 +449.75 +/- 6.48

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
175083 ncm-et-10 2023-03-08 10:30 00:54:31 1897863 301 261 0 40 +459.06 +/- 55.16
175082 ncm-et-9 2023-03-08 10:28 00:56:00 1962620 324 288 0 36 +492.17 +/- 58.44
175081 ncm-et-15 2023-03-08 10:25 00:58:50 1958678 339 287 1 51 +428.64 +/- 48.6
175080 ncm-et-13 2023-03-08 10:25 00:59:12 1953745 339 290 0 49 +443.37 +/- 49.54
175079 ncm-et-3 2023-03-08 10:25 00:59:35 1957956 341 298 0 43 +468.8 +/- 53.13
175077 ncm-et-4 2023-03-08 10:24 01:00:40 1957753 356 308 0 48 +456.36 +/- 50.12
175050 ncm-et-10 2023-03-08 09:02 01:27:30 1938969 500 441 1 58 +477.99 +/- 45.54
175049 ncm-et-9 2023-03-08 09:01 01:26:51 1957094 500 419 0 81 +421.93 +/- 38.15
175048 ncm-et-3 2023-03-08 08:59 01:25:26 1961083 500 437 0 63 +468.95 +/- 43.54
175047 ncm-et-13 2023-03-08 08:58 01:26:02 1945342 500 426 2 72 +433.94 +/- 40.69
175046 ncm-et-15 2023-03-08 08:57 01:27:25 1958659 500 432 0 68 +454.76 +/- 41.82
175045 ncm-et-4 2023-03-08 08:57 01:25:59 1967351 500 434 0 66 +460.32 +/- 42.48
175017 ncm-et-9 2023-03-08 07:32 01:28:10 1944363 500 439 0 61 +474.93 +/- 44.28
175016 ncm-et-13 2023-03-08 07:31 01:26:18 1952771 500 429 0 71 +446.7 +/- 40.89
175015 ncm-et-10 2023-03-08 07:31 01:29:39 1943894 500 434 0 66 +460.32 +/- 42.48
175014 ncm-et-3 2023-03-08 07:30 01:27:49 1946991 500 424 0 76 +433.94 +/- 39.45
175013 ncm-et-4 2023-03-08 07:30 01:26:17 1964938 500 423 2 75 +426.65 +/- 39.83
175012 ncm-et-15 2023-03-08 07:28 01:29:02 1951007 500 424 0 76 +433.94 +/- 39.45
174987 ncm-et-10 2023-03-08 06:04 01:26:49 1949505 500 425 0 75 +436.43 +/- 39.73
174986 ncm-et-9 2023-03-08 06:03 01:27:57 1952371 500 428 0 72 +444.08 +/- 40.59
174985 ncm-et-13 2023-03-08 06:03 01:27:38 1952348 500 441 1 58 +477.99 +/- 45.54
174984 ncm-et-3 2023-03-08 06:03 01:26:27 1954195 500 428 1 71 +441.5 +/- 40.95
174981 ncm-et-4 2023-03-08 06:02 01:27:42 1958323 500 429 2 69 +441.5 +/- 41.61
174979 ncm-et-15 2023-03-08 05:59 01:27:42 1952679 500 439 1 60 +471.92 +/- 44.73
174953 ncm-et-3 2023-03-08 04:37 01:25:40 1954369 500 419 0 81 +421.93 +/- 38.15
174952 ncm-et-9 2023-03-08 04:36 01:26:44 1942497 500 426 0 74 +438.95 +/- 40.01
174951 ncm-et-10 2023-03-08 04:35 01:27:44 1942710 500 430 0 70 +449.35 +/- 41.19
174950 ncm-et-13 2023-03-08 04:35 01:27:24 1948670 500 427 0 73 +441.5 +/- 40.29
174949 ncm-et-15 2023-03-08 04:33 01:25:32 1962018 500 440 0 60 +477.98 +/- 44.67
174948 ncm-et-4 2023-03-08 04:33 01:28:07 1934798 500 425 1 74 +433.94 +/- 40.08
174923 ncm-et-3 2023-03-08 03:08 01:28:02 1958336 500 440 1 59 +474.93 +/- 45.13
174922 ncm-et-13 2023-03-08 03:08 01:26:27 1956272 500 443 1 56 +484.25 +/- 46.39
174921 ncm-et-9 2023-03-08 03:07 01:27:49 1941196 500 426 0 74 +438.95 +/- 40.01
174920 ncm-et-4 2023-03-08 03:07 01:24:55 1961386 500 434 0 66 +460.32 +/- 42.48
174918 ncm-et-10 2023-03-08 03:06 01:28:14 1950817 500 432 0 68 +454.76 +/- 41.82
174915 ncm-et-15 2023-03-08 03:06 01:26:38 1953769 500 423 0 77 +431.48 +/- 39.18
174890 ncm-et-3 2023-03-08 01:39 01:28:21 1955903 500 435 1 64 +460.32 +/- 43.24
174889 ncm-et-4 2023-03-08 01:39 01:27:54 1949794 500 423 2 75 +426.65 +/- 39.83
174888 ncm-et-13 2023-03-08 01:39 01:28:30 1954484 500 435 2 63 +457.52 +/- 43.63
174887 ncm-et-9 2023-03-08 01:39 01:28:04 1923667 500 422 1 77 +426.65 +/- 39.25
174886 ncm-et-15 2023-03-08 01:39 01:26:30 1945551 500 435 0 65 +463.15 +/- 42.83
174885 ncm-et-10 2023-03-08 01:38 01:27:27 1951915 500 428 1 71 +441.5 +/- 40.95

Commit

Commit ID 472e726bff0d0e496dc8359cc071726a76317a72
Author Michael Chaly
Date 2023-02-24 19:14:44 UTC
Search tuning at very long time control This patch is a result of tuning session of approximately 100k games at 120+1.2. Biggest changes are in extensions, stat bonus and depth reduction for nodes without a tt move. Failed STC: https://tests.stockfishchess.org/tests/view/63f72c72e74a12625bcd7938 LLR: -2.94 (-2.94,2.94) <0.00,2.00> Total: 13872 W: 3535 L: 3769 D: 6568 Ptnml(0-2): 56, 1621, 3800, 1419, 40 Close to neutral at LTC: https://tests.stockfishchess.org/tests/view/63f738f5e74a12625bcd7b8a Elo: 0.80 +-1.2 (95%) LOS: 90.0% Total: 60000 W: 16213 L: 16074 D: 27713 Ptnml(0-2): 24, 5718, 18379, 5853, 26 nElo: 1.82 +-2.8 (95%) PairsRatio: 1.02 Passed 180+1.8 VLTC: https://tests.stockfishchess.org/tests/view/63f868f3e74a12625bcdb33e LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 15864 W: 4449 L: 4202 D: 7213 Ptnml(0-2): 1, 1301, 5083, 1544, 3 Passed 60+0.6 8 threads SMP VLTC: https://tests.stockfishchess.org/tests/view/63f8a5d6e74a12625bcdbdb3 LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 6288 W: 1821 L: 1604 D: 2863 Ptnml(0-2): 0, 402, 2123, 619, 0 closes https://github.com/official-stockfish/Stockfish/pull/4406 bench 4705194
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