Dev Builds » 20220806-1150

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 11:14:20 1953773 3336 2882 7 447 +451.78 +/- 16.13
ncm-et-4 11:14:27 1950148 3324 2896 12 416 +459.8 +/- 16.73
ncm-et-9 11:14:17 1962497 3354 2857 6 491 +436.47 +/- 15.37
ncm-et-10 11:14:07 1954063 3297 2835 4 458 +447.57 +/- 15.92
ncm-et-13 11:14:22 1964562 3342 2885 3 454 +452.52 +/- 15.99
ncm-et-15 11:14:29 1960364 3347 2884 12 451 +446.81 +/- 16.07
20000 17239 44 2717 +449.02 +/- 6.53

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
159864 ncm-et-10 2022-08-10 15:57 01:00:04 1960467 297 260 1 36 +466.12 +/- 58.5
159863 ncm-et-4 2022-08-10 15:52 01:04:54 1972344 324 282 2 40 +455.03 +/- 55.29
159862 ncm-et-3 2022-08-10 15:49 01:07:34 1962610 336 299 0 37 +493.82 +/- 57.6
159861 ncm-et-15 2022-08-10 15:49 01:08:00 1959247 347 300 2 45 +447.75 +/- 51.97
159860 ncm-et-13 2022-08-10 15:47 01:09:16 1967849 342 297 0 45 +460.91 +/- 51.85
159859 ncm-et-9 2022-08-10 15:45 01:11:38 1966000 354 298 2 54 +419.79 +/- 47.21
159858 ncm-et-10 2022-08-10 14:12 01:43:58 1944533 500 424 1 75 +431.48 +/- 39.8
159857 ncm-et-4 2022-08-10 14:12 01:39:35 1963119 500 443 3 54 +477.99 +/- 47.24
159856 ncm-et-3 2022-08-10 14:07 01:42:01 1946936 500 435 1 64 +460.32 +/- 43.24
159855 ncm-et-15 2022-08-10 14:06 01:42:23 1957708 500 421 2 77 +421.93 +/- 39.29
159854 ncm-et-13 2022-08-10 14:05 01:41:59 1958474 500 429 1 70 +444.09 +/- 41.26
159853 ncm-et-9 2022-08-10 14:05 01:40:00 1968779 500 426 1 73 +436.43 +/- 40.36
159852 ncm-et-4 2022-08-10 12:29 01:41:58 1943174 500 441 1 58 +477.99 +/- 45.54
159851 ncm-et-10 2022-08-10 12:29 01:42:42 1953129 500 436 1 63 +463.16 +/- 43.6
159850 ncm-et-15 2022-08-10 12:25 01:40:30 1957417 500 436 1 63 +463.16 +/- 43.6
159849 ncm-et-3 2022-08-10 12:23 01:42:47 1954807 500 429 0 71 +446.7 +/- 40.89
159848 ncm-et-13 2022-08-10 12:23 01:41:25 1965536 500 437 0 63 +468.95 +/- 43.54
159847 ncm-et-9 2022-08-10 12:23 01:41:15 1953890 500 421 1 78 +424.28 +/- 38.99
159846 ncm-et-10 2022-08-10 10:46 01:42:31 1952520 500 425 0 75 +436.43 +/- 39.73
159845 ncm-et-15 2022-08-10 10:45 01:39:21 1968160 500 418 2 80 +415.05 +/- 38.52
159844 ncm-et-4 2022-08-10 10:44 01:44:36 1906717 500 428 2 70 +438.95 +/- 41.29
159843 ncm-et-3 2022-08-10 10:43 01:39:41 1961393 500 435 0 65 +463.15 +/- 42.83
159842 ncm-et-13 2022-08-10 10:42 01:39:51 1964005 500 423 1 76 +429.05 +/- 39.52
159841 ncm-et-9 2022-08-10 10:42 01:40:29 1965859 500 423 0 77 +431.48 +/- 39.18
159840 ncm-et-10 2022-08-10 09:03 01:41:57 1952828 500 432 1 67 +452.04 +/- 42.22
159839 ncm-et-13 2022-08-10 09:03 01:39:07 1972507 500 439 1 60 +471.92 +/- 44.73
159838 ncm-et-15 2022-08-10 09:02 01:42:14 1957399 500 443 1 56 +484.25 +/- 46.39
159837 ncm-et-9 2022-08-10 09:01 01:39:53 1962012 500 425 0 75 +436.43 +/- 39.73
159836 ncm-et-4 2022-08-10 08:59 01:44:08 1937818 500 437 0 63 +468.95 +/- 43.54
159835 ncm-et-3 2022-08-10 08:59 01:43:26 1929577 500 435 2 63 +457.52 +/- 43.63
159834 ncm-et-13 2022-08-10 07:20 01:41:42 1958776 500 436 0 64 +466.03 +/- 43.18
159833 ncm-et-15 2022-08-10 07:20 01:41:00 1960925 500 434 2 64 +454.76 +/- 43.27
159832 ncm-et-10 2022-08-10 07:20 01:42:54 1953739 500 428 0 72 +444.08 +/- 40.59
159831 ncm-et-3 2022-08-10 07:19 01:39:16 1961849 500 425 1 74 +433.94 +/- 40.08
159830 ncm-et-9 2022-08-10 07:19 01:41:27 1957248 500 421 1 78 +424.28 +/- 38.99
159829 ncm-et-4 2022-08-10 07:18 01:40:23 1960770 500 431 4 65 +441.5 +/- 42.88
159828 ncm-et-10 2022-08-10 05:39 01:40:01 1961228 500 430 0 70 +449.35 +/- 41.19
159827 ncm-et-3 2022-08-10 05:39 01:39:35 1959240 500 424 3 73 +426.65 +/- 40.41
159826 ncm-et-9 2022-08-10 05:39 01:39:35 1963693 500 443 1 56 +484.25 +/- 46.39
159825 ncm-et-4 2022-08-10 05:39 01:38:53 1967098 500 434 0 66 +460.32 +/- 42.48
159824 ncm-et-13 2022-08-10 05:39 01:41:02 1964787 500 424 0 76 +433.94 +/- 39.45
159823 ncm-et-15 2022-08-10 05:39 01:41:01 1961692 500 432 2 66 +449.35 +/- 42.58

Commit

Commit ID 675f6a038ba98b6b906a4767f009cf6fe91b0c52
Author Stefan Geschwentner
Date 2022-08-06 11:50:01 UTC
Tweak history updates In general the history update bonus is slightly decreased by 11% which gives a slower saturation speed. In addition only for main history the divisor is halfed (used history values are doubled to maintain same maximum) which have an effect in the opposite direction on saturation speed. STC: LLR: 2.95 (-2.94,2.94) <0.00,2.50> Total: 157088 W: 42673 L: 42168 D: 72247 Ptnml(0-2): 857, 17346, 41642, 17833, 866 https://tests.stockfishchess.org/tests/view/62e5517ab383a712b13867c5 LTC: LLR: 2.94 (-2.94,2.94) <0.50,3.00> Total: 325592 W: 88705 L: 87753 D: 149134 Ptnml(0-2): 594, 32288, 96076, 33248, 590 https://tests.stockfishchess.org/tests/view/62e5e4f4b383a712b1387d53 closes https://github.com/official-stockfish/Stockfish/pull/4119 Bench: 5518728
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