Dev Builds » 20210923-2124

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 08:46:28 1897601 3286 2869 8 409 +464.11 +/- 16.87
ncm-et-4 08:46:37 1903595 3352 2852 10 490 +433.76 +/- 15.4
ncm-et-9 08:46:19 1903680 3340 2863 6 471 +443.29 +/- 15.7
ncm-et-10 08:46:21 1909271 3348 2863 6 479 +440.66 +/- 15.57
ncm-et-13 08:46:22 1900259 3333 2841 8 484 +436.41 +/- 15.49
ncm-et-15 08:46:45 1901964 3341 2842 5 494 +435.37 +/- 15.32
20000 17130 43 2827 +441.95 +/- 6.4

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
151742 ncm-et-3 2021-09-24 21:02 00:02:36 1957093 11 9 0 2 +399.83 +/- 482.22
151741 ncm-et-13 2021-09-24 21:00 00:05:11 1961540 31 27 1 3 +422.76 +/- 396.37
151740 ncm-et-9 2021-09-24 20:59 00:05:12 1966183 33 26 0 7 +370.25 +/- 150.56
151739 ncm-et-15 2021-09-24 20:58 00:07:15 1957101 39 31 0 8 +376.76 +/- 137.62
151738 ncm-et-4 2021-09-24 20:58 00:07:17 1964327 47 35 0 12 +333.82 +/- 105.16
151737 ncm-et-10 2021-09-24 20:54 00:10:21 1954195 64 56 1 7 +448.52 +/- 152.79
151736 ncm-et-13 2021-09-24 19:21 01:37:53 1491375 500 441 0 59 +481.09 +/- 45.07
151735 ncm-et-10 2021-09-24 19:21 01:33:03 1581120 500 433 2 65 +452.04 +/- 42.92
151734 ncm-et-4 2021-09-24 19:21 01:36:23 1529679 500 419 1 80 +419.61 +/- 38.47
151733 ncm-et-3 2021-09-24 19:21 01:40:59 1464074 500 443 1 56 +484.25 +/- 46.39
151732 ncm-et-9 2021-09-24 19:21 01:38:14 1493040 500 437 1 62 +466.04 +/- 43.97
151731 ncm-et-15 2021-09-24 19:20 01:36:43 1513278 500 420 1 79 +421.93 +/- 38.73
151730 ncm-et-3 2021-09-24 18:38 00:41:52 1967907 275 245 2 28 +483.67 +/- 66.82
151729 ncm-et-10 2021-09-24 18:37 00:42:40 1961079 284 237 0 47 +417.89 +/- 50.54
151728 ncm-et-4 2021-09-24 18:35 00:45:07 1966228 305 261 0 44 +443.74 +/- 52.41
151727 ncm-et-13 2021-09-24 18:34 00:46:05 1961392 302 257 1 44 +433.55 +/- 52.53
151726 ncm-et-9 2021-09-24 18:34 00:45:49 1960316 307 262 1 44 +436.64 +/- 52.54
151725 ncm-et-15 2021-09-24 18:33 00:46:24 1954503 302 248 1 53 +399.68 +/- 47.56
151724 ncm-et-10 2021-09-24 17:20 01:16:14 1953315 500 431 0 69 +452.04 +/- 41.5
151723 ncm-et-3 2021-09-24 17:20 01:17:18 1952375 500 443 0 57 +487.45 +/- 45.89
151722 ncm-et-4 2021-09-24 17:19 01:15:27 1953173 500 424 1 75 +431.48 +/- 39.8
151721 ncm-et-9 2021-09-24 17:18 01:15:15 1967541 500 426 0 74 +438.95 +/- 40.01
151720 ncm-et-15 2021-09-24 17:17 01:15:10 1959447 500 430 1 69 +446.7 +/- 41.57
151719 ncm-et-13 2021-09-24 17:17 01:16:06 1956039 500 427 1 72 +438.95 +/- 40.66
151718 ncm-et-10 2021-09-24 16:05 01:14:58 1960015 500 427 0 73 +441.5 +/- 40.29
151717 ncm-et-3 2021-09-24 16:04 01:14:49 1959713 500 439 2 59 +468.96 +/- 45.15
151716 ncm-et-4 2021-09-24 16:03 01:14:55 1966933 500 436 3 61 +457.52 +/- 44.35
151715 ncm-et-13 2021-09-24 16:03 01:14:01 1964921 500 432 1 67 +452.04 +/- 42.22
151714 ncm-et-9 2021-09-24 16:02 01:15:06 1960648 500 427 0 73 +441.5 +/- 40.29
151713 ncm-et-15 2021-09-24 16:01 01:15:44 1950850 500 439 0 61 +474.93 +/- 44.28
151712 ncm-et-10 2021-09-24 14:48 01:15:45 1958634 500 432 2 66 +449.35 +/- 42.58
151711 ncm-et-3 2021-09-24 14:47 01:16:46 1970199 500 423 0 77 +431.48 +/- 39.18
151710 ncm-et-13 2021-09-24 14:47 01:15:10 1964769 500 410 2 88 +397.72 +/- 36.65
151709 ncm-et-4 2021-09-24 14:46 01:16:20 1950700 500 412 2 86 +401.92 +/- 37.09
151708 ncm-et-9 2021-09-24 14:45 01:16:13 1957858 500 424 0 76 +433.94 +/- 39.45
151707 ncm-et-15 2021-09-24 14:45 01:15:30 1956190 500 430 0 70 +449.35 +/- 41.19
151706 ncm-et-13 2021-09-24 13:32 01:14:39 1961863 500 433 1 66 +454.76 +/- 42.55
151705 ncm-et-10 2021-09-24 13:31 01:16:47 1950546 500 420 1 79 +421.93 +/- 38.73
151704 ncm-et-9 2021-09-24 13:30 01:14:39 1965228 500 437 1 62 +466.04 +/- 43.97
151703 ncm-et-3 2021-09-24 13:29 01:17:10 1945856 500 440 2 58 +471.92 +/- 45.55
151702 ncm-et-4 2021-09-24 13:29 01:16:20 1941991 500 434 2 64 +454.76 +/- 43.27
151701 ncm-et-15 2021-09-24 13:28 01:15:44 1955261 500 419 0 81 +421.93 +/- 38.15
151700 ncm-et-4 2021-09-24 12:14 01:14:48 1955733 500 431 1 68 +449.35 +/- 41.89
151699 ncm-et-9 2021-09-24 12:14 01:15:51 1958627 500 424 3 73 +426.65 +/- 40.41
151698 ncm-et-10 2021-09-24 12:14 01:16:33 1955264 500 427 0 73 +441.5 +/- 40.29
151697 ncm-et-3 2021-09-24 12:14 01:14:58 1963592 500 427 1 72 +438.95 +/- 40.66
151696 ncm-et-13 2021-09-24 12:14 01:17:17 1940180 500 414 1 85 +408.38 +/- 37.27
151695 ncm-et-15 2021-09-24 12:14 01:14:15 1969088 500 425 2 73 +431.48 +/- 40.4

Commit

Commit ID ff3fa0c664a5799e5531b0908018c59633d761bf
Author Stéphane Nicolet
Date 2021-09-23 21:24:28 UTC
Tweak doubly singular condition (Topo's patch) This patch relax a little bit the condition for doubly singular moves (ie moves that are so forced that we think that they deserve a local double extension of the search). We lower the margin and allow up to six such double extensions in the path between the root and the critical node. Original idea by Siad Daboul (@TopoIogist) in PR #3709 Tested with the previous commit: passed STC: LLR: 2.94 (-2.94,2.94) <-0.50,2.50> Total: 33048 W: 8458 L: 8236 D: 16354 Ptnml(0-2): 120, 3701, 8660, 3923, 120 https://tests.stockfishchess.org/tests/view/614b24347bdc23e77ceb88fe passed LTC: LLR: 2.95 (-2.94,2.94) <0.50,3.50> Total: 54176 W: 13712 L: 13406 D: 27058 Ptnml(0-2): 36, 5653, 15399, 5969, 31 https://tests.stockfishchess.org/tests/view/614b3b727bdc23e77ceb8911 closes https://github.com/official-stockfish/Stockfish/pull/3714 Bench: 5792377
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