Dev Builds » 20201018-1154

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 08:22:05 1963096 3339 2642 20 677 +367.92 +/- 13.08
ncm-et-4 08:22:00 1967860 3327 2620 21 686 +364.25 +/- 12.99
ncm-et-9 08:21:54 1970738 3343 2620 24 699 +360.16 +/- 12.88
ncm-et-10 08:21:51 1959779 3334 2629 22 683 +364.93 +/- 13.03
ncm-et-13 08:21:36 1959290 3308 2641 13 654 +376.39 +/- 13.3
ncm-et-15 08:21:44 1968990 3349 2642 24 683 +364.74 +/- 13.03
20000 15794 124 4082 +366.33 +/- 5.32

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
139917 ncm-et-13 2020-10-18 19:55 00:47:38 1957570 308 238 1 69 +354.06 +/- 41.32
139916 ncm-et-4 2020-10-18 19:53 00:49:03 1966315 327 264 1 62 +385.87 +/- 43.79
139915 ncm-et-10 2020-10-18 19:53 00:48:47 1959702 334 271 0 63 +392.96 +/- 43.32
139914 ncm-et-3 2020-10-18 19:52 00:50:51 1965534 339 267 1 71 +367.37 +/- 40.77
139913 ncm-et-15 2020-10-18 19:51 00:50:50 1963532 349 277 4 68 +365.19 +/- 41.86
139912 ncm-et-9 2020-10-18 19:51 00:51:19 1970172 343 257 2 84 +332.89 +/- 37.36
139911 ncm-et-4 2020-10-18 18:37 01:15:40 1965844 500 383 5 112 +342.85 +/- 32.39
139910 ncm-et-13 2020-10-18 18:36 01:17:23 1948832 500 398 1 101 +375.98 +/- 34.04
139909 ncm-et-10 2020-10-18 18:36 01:16:15 1956943 500 385 3 112 +349.43 +/- 32.33
139908 ncm-et-9 2020-10-18 18:35 01:15:19 1979196 500 396 5 99 +364.98 +/- 34.53
139907 ncm-et-3 2020-10-18 18:35 01:15:47 1964764 500 394 4 102 +363.2 +/- 33.99
139906 ncm-et-15 2020-10-18 18:34 01:16:09 1969088 500 408 3 89 +391.57 +/- 36.46
139905 ncm-et-4 2020-10-18 17:20 01:15:10 1965535 500 390 5 105 +354.5 +/- 33.5
139904 ncm-et-13 2020-10-18 17:20 01:15:11 1961843 500 397 2 101 +372.25 +/- 34.1
139903 ncm-et-10 2020-10-18 17:20 01:15:06 1961690 500 401 2 97 +379.78 +/- 34.83
139902 ncm-et-9 2020-10-18 17:19 01:14:32 1966628 500 377 4 119 +334.88 +/- 31.35
139901 ncm-et-3 2020-10-18 17:19 01:14:58 1960461 500 388 3 109 +354.5 +/- 32.8
139900 ncm-et-15 2020-10-18 17:18 01:14:49 1972503 500 394 1 105 +368.59 +/- 33.35
139899 ncm-et-4 2020-10-18 16:04 01:15:12 1969562 500 384 1 115 +351.11 +/- 31.79
139898 ncm-et-10 2020-10-18 16:03 01:15:29 1959563 500 389 2 109 +357.94 +/- 32.76
139897 ncm-et-3 2020-10-18 16:03 01:14:28 1965229 500 412 1 87 +404.05 +/- 36.82
139896 ncm-et-15 2020-10-18 16:03 01:14:27 1964001 500 402 3 95 +379.78 +/- 35.24
139895 ncm-et-9 2020-10-18 16:03 01:15:20 1974669 500 398 4 98 +370.41 +/- 34.7
139894 ncm-et-13 2020-10-18 16:02 01:16:58 1958930 500 401 1 98 +381.7 +/- 34.59
139893 ncm-et-10 2020-10-18 14:49 01:13:35 1971100 500 399 7 94 +366.78 +/- 35.45
139892 ncm-et-4 2020-10-18 14:48 01:15:05 1978409 500 397 3 100 +370.41 +/- 34.31
139891 ncm-et-9 2020-10-18 14:47 01:14:29 1965382 500 392 4 104 +359.68 +/- 33.64
139890 ncm-et-15 2020-10-18 14:47 01:15:08 1968634 500 397 2 101 +372.25 +/- 34.1
139889 ncm-et-13 2020-10-18 14:46 01:14:39 1960001 500 400 3 97 +375.98 +/- 34.86
139888 ncm-et-3 2020-10-18 14:45 01:16:35 1958622 500 384 3 113 +347.77 +/- 32.18
139887 ncm-et-10 2020-10-18 13:31 01:16:35 1954499 500 390 6 104 +352.8 +/- 33.67
139886 ncm-et-15 2020-10-18 13:31 01:14:45 1970971 500 369 8 123 +316.8 +/- 30.9
139885 ncm-et-13 2020-10-18 13:31 01:14:36 1965403 500 399 3 98 +374.11 +/- 34.68
139884 ncm-et-9 2020-10-18 13:31 01:15:34 1972033 500 396 1 103 +372.25 +/- 33.69
139883 ncm-et-4 2020-10-18 13:30 01:16:48 1960096 500 394 1 105 +368.59 +/- 33.35
139882 ncm-et-3 2020-10-18 13:30 01:14:19 1963070 500 406 4 90 +385.59 +/- 36.27
139881 ncm-et-13 2020-10-18 12:14 01:15:11 1962455 500 408 2 90 +393.6 +/- 36.22
139880 ncm-et-15 2020-10-18 12:14 01:15:36 1974205 500 395 3 102 +366.78 +/- 33.96
139879 ncm-et-9 2020-10-18 12:14 01:15:21 1967086 500 404 4 92 +381.7 +/- 35.86
139878 ncm-et-4 2020-10-18 12:14 01:15:02 1969259 500 408 5 87 +387.57 +/- 36.91
139877 ncm-et-3 2020-10-18 12:14 01:15:07 1963994 500 391 4 105 +357.94 +/- 33.48
139876 ncm-et-10 2020-10-18 12:14 01:16:04 1954959 500 394 2 104 +366.78 +/- 33.58

Commit

Commit ID 560c776397483feaaa0deb5b666f46ff3f5b655f
Author Vizvezdenec
Date 2020-10-18 11:54:28 UTC
Do more reductions for late quiet moves in case of consecutive fail highs. Idea of this patch can be described as following - in case we have consecutive fail highs and we reach late enough moves at root node probability of remaining quiet moves being able to produce even bigger value than moves that produced previous cutoff (so ones that should be high in move ordering but now they fail to produce beta cutoff because we actually reached high move count) should be quiet small so we can reduce them more. passed STC LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 53392 W: 5681 L: 5474 D: 42237 Ptnml(0-2): 214, 4104, 17894, 4229, 255 https://tests.stockfishchess.org/tests/view/5f88501adcdad978fe8c527e passed LTC LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 59136 W: 2773 L: 2564 D: 53799 Ptnml(0-2): 30, 2117, 25078, 2300, 43 https://tests.stockfishchess.org/tests/view/5f884dbfdcdad978fe8c527a closes https://github.com/official-stockfish/Stockfish/pull/3184 Bench: 4066972
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