Dev Builds » 20210601-1925

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 08:14:25 1966503 3354 2695 20 639 +379.35 +/- 13.47
ncm-et-4 08:14:30 1965962 3366 2723 14 629 +386.39 +/- 13.57
ncm-et-9 08:14:43 1960924 3318 2687 12 619 +387.77 +/- 13.68
ncm-et-10 08:14:24 1952687 3316 2673 12 631 +384.1 +/- 13.54
ncm-et-13 08:14:32 1962623 3347 2725 17 605 +390.65 +/- 13.85
ncm-et-15 08:14:18 1953361 3299 2683 11 605 +391.51 +/- 13.83
20000 16186 86 3728 +386.58 +/- 5.57

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
147942 ncm-et-15 2021-06-02 23:44 00:25:37 1934786 164 139 0 25 +433.39 +/- 70.82
147941 ncm-et-9 2021-06-02 23:42 00:27:00 1959694 183 146 0 37 +379.59 +/- 57.08
147940 ncm-et-10 2021-06-02 23:42 00:27:14 1947513 175 138 1 36 +365.75 +/- 58.14
147939 ncm-et-13 2021-06-02 23:41 00:28:37 1964156 192 149 3 40 +346.46 +/- 55.06
147938 ncm-et-4 2021-06-02 23:39 00:30:02 1957592 196 158 2 36 +377.79 +/- 58.29
147937 ncm-et-3 2021-06-02 23:39 00:30:00 1958035 194 153 1 40 +366.33 +/- 54.98
147936 ncm-et-15 2021-06-02 22:30 01:12:51 1962479 500 406 0 94 +393.6 +/- 35.29
147935 ncm-et-10 2021-06-02 22:28 01:13:00 1962763 500 396 3 101 +368.59 +/- 34.13
147934 ncm-et-9 2021-06-02 22:28 01:14:09 1971258 500 405 2 93 +387.57 +/- 35.6
147933 ncm-et-13 2021-06-02 22:26 01:14:04 1956655 500 400 3 97 +375.98 +/- 34.86
147932 ncm-et-3 2021-06-02 22:25 01:13:06 1970026 500 395 6 99 +361.43 +/- 34.54
147931 ncm-et-4 2021-06-02 22:25 01:13:12 1963235 500 396 2 102 +370.41 +/- 33.92
147930 ncm-et-15 2021-06-02 21:14 01:15:00 1952674 500 392 1 107 +364.98 +/- 33.02
147929 ncm-et-10 2021-06-02 21:13 01:15:11 1947099 500 400 1 99 +379.78 +/- 34.4
147928 ncm-et-13 2021-06-02 21:12 01:12:59 1962767 500 397 3 100 +370.41 +/- 34.31
147927 ncm-et-9 2021-06-02 21:12 01:14:57 1953742 500 400 1 99 +379.78 +/- 34.4
147926 ncm-et-4 2021-06-02 21:12 01:12:41 1970798 500 414 0 86 +410.58 +/- 36.97
147925 ncm-et-3 2021-06-02 21:12 01:13:14 1963385 500 409 6 85 +387.57 +/- 37.33
147924 ncm-et-15 2021-06-02 19:58 01:15:59 1934873 500 409 4 87 +391.57 +/- 36.91
147923 ncm-et-4 2021-06-02 19:58 01:13:39 1968183 500 401 3 96 +377.87 +/- 35.05
147922 ncm-et-9 2021-06-02 19:58 01:13:40 1961704 500 404 1 95 +387.57 +/- 35.16
147921 ncm-et-3 2021-06-02 19:58 01:13:14 1970642 500 410 0 90 +401.92 +/- 36.1
147920 ncm-et-10 2021-06-02 19:58 01:14:12 1951456 500 396 2 102 +370.41 +/- 33.92
147919 ncm-et-13 2021-06-02 19:58 01:13:57 1965849 500 418 4 78 +410.58 +/- 39.05
147876 ncm-et-15 2021-06-02 11:16 00:20:42 1965379 135 113 0 22 +420.8 +/- 75.86
147875 ncm-et-9 2021-06-02 11:16 00:20:56 1965242 135 119 0 16 +480.26 +/- 91.44
147874 ncm-et-10 2021-06-02 11:16 00:21:19 1954361 141 116 1 24 +397.31 +/- 72.51
147873 ncm-et-3 2021-06-02 11:13 00:23:39 1969428 160 128 0 32 +381.69 +/- 61.65
147872 ncm-et-13 2021-06-02 11:13 00:24:05 1961078 155 124 0 31 +381.69 +/- 62.7
147871 ncm-et-4 2021-06-02 11:12 00:25:14 1969556 170 135 2 33 +365.3 +/- 61.0
147870 ncm-et-15 2021-06-02 10:01 01:14:15 1965244 500 417 0 83 +417.31 +/- 37.67
147869 ncm-et-10 2021-06-02 10:01 01:13:56 1958322 500 415 1 84 +410.58 +/- 37.5
147868 ncm-et-9 2021-06-02 10:00 01:15:06 1955880 500 404 1 95 +387.57 +/- 35.16
147867 ncm-et-3 2021-06-02 10:00 01:12:32 1964167 500 397 2 101 +372.25 +/- 34.1
147866 ncm-et-13 2021-06-02 09:58 01:13:50 1962934 500 417 2 81 +412.8 +/- 38.27
147865 ncm-et-4 2021-06-02 09:58 01:12:43 1969394 500 410 3 87 +395.65 +/- 36.9
147864 ncm-et-15 2021-06-02 08:46 01:14:12 1958502 500 404 4 92 +381.7 +/- 35.86
147863 ncm-et-10 2021-06-02 08:46 01:14:03 1959859 500 399 3 98 +374.11 +/- 34.68
147862 ncm-et-3 2021-06-02 08:46 01:13:43 1964000 500 405 2 93 +387.57 +/- 35.6
147861 ncm-et-4 2021-06-02 08:45 01:12:52 1966788 500 401 2 97 +379.78 +/- 34.83
147860 ncm-et-9 2021-06-02 08:45 01:15:02 1958802 500 409 3 88 +393.6 +/- 36.68
147859 ncm-et-13 2021-06-02 08:44 01:13:37 1960933 500 422 2 76 +424.28 +/- 39.56
147858 ncm-et-10 2021-06-02 07:30 01:15:29 1940126 500 413 0 87 +408.38 +/- 36.75
147857 ncm-et-15 2021-06-02 07:30 01:15:42 1952956 500 403 2 95 +383.64 +/- 35.21
147856 ncm-et-13 2021-06-02 07:30 01:13:23 1966615 500 398 0 102 +377.87 +/- 33.8
147855 ncm-et-3 2021-06-02 07:30 01:14:57 1972344 500 398 3 99 +372.25 +/- 34.49
147854 ncm-et-9 2021-06-02 07:30 01:13:53 1961075 500 400 4 96 +374.11 +/- 35.07
147853 ncm-et-4 2021-06-02 07:30 01:14:07 1962153 500 408 0 92 +397.72 +/- 35.69

Commit

Commit ID 9fd5b44d60c53357bb76d4c51f20d3d5aa31ebe3
Author J. Oster
Date 2021-06-01 19:25:28 UTC
Pre-initialize ss->ply We pre-initialize ss->ply over the whole stack. There is no need to re-assign the same value(s) over and over again while searching. Probably a tiny speedup on longer searches. Tested for no regression: STC LLR: 2.93 (-2.94,2.94) <-2.50,0.50> Total: 25784 W: 2205 L: 2101 D: 21478 Ptnml(0-2): 62, 1660, 9368, 1716, 86 https://tests.stockfishchess.org/tests/view/60b516c6457376eb8bca9dfa LTC LLR: 2.94 (-2.94,2.94) <-2.50,0.50> Total: 26200 W: 944 L: 878 D: 24378 Ptnml(0-2): 12, 732, 11545, 800, 11 https://tests.stockfishchess.org/tests/view/60b53652457376eb8bca9e0e closes https://github.com/official-stockfish/Stockfish/pull/3516 No functional change.
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