Dev Builds » 20201218-2019

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 08:33:56 1970535 3426 2758 17 651 +381.75 +/- 13.34
ncm-et-4 08:33:41 1952586 3394 2682 13 699 +368.94 +/- 12.85
ncm-et-9 08:33:42 1968088 3439 2726 11 702 +371.77 +/- 12.82
ncm-et-10 08:32:59 1960946 3376 2743 16 617 +389.32 +/- 13.71
ncm-et-13 07:28:55 1960366 2961 2331 13 617 +365.74 +/- 13.69
ncm-et-15 08:33:50 1968203 3404 2695 23 686 +367.64 +/- 13.0
20000 15935 93 3972 +374.2 +/- 5.39

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
141606 ncm-et-10 2020-12-19 07:22 00:56:28 1960487 376 298 3 75 +367.3 +/- 39.78
141605 ncm-et-4 2020-12-19 07:20 00:58:28 1970637 394 311 1 82 +369.32 +/- 37.86
141604 ncm-et-15 2020-12-19 07:18 01:00:55 1977941 404 307 3 94 +340.01 +/- 35.35
141603 ncm-et-3 2020-12-19 07:16 01:03:11 1972339 426 345 3 78 +384.43 +/- 39.01
141602 ncm-et-9 2020-12-19 07:14 01:05:16 1971568 439 364 0 75 +411.86 +/- 39.66
141601 ncm-et-13 2020-12-19 07:07 01:11:36 1955719 461 355 2 104 +350.88 +/- 33.53
141600 ncm-et-10 2020-12-19 06:06 01:15:09 1959399 500 409 2 89 +395.65 +/- 36.43
141599 ncm-et-4 2020-12-19 06:04 01:15:20 1973433 500 405 4 91 +383.64 +/- 36.06
141598 ncm-et-15 2020-12-19 06:01 01:16:12 1968940 500 397 2 101 +372.25 +/- 34.1
141597 ncm-et-3 2020-12-19 05:58 01:16:14 1966928 500 400 3 97 +375.98 +/- 34.86
141596 ncm-et-9 2020-12-19 05:57 01:15:48 1972512 500 398 4 98 +370.41 +/- 34.7
141595 ncm-et-13 2020-12-19 05:48 01:18:12 1958174 500 399 2 99 +375.98 +/- 34.46
141594 ncm-et-10 2020-12-19 04:49 01:15:29 1962167 500 411 2 87 +399.81 +/- 36.87
141593 ncm-et-4 2020-12-19 04:48 01:14:46 1965071 500 406 2 92 +389.56 +/- 35.8
141592 ncm-et-15 2020-12-19 04:44 01:15:39 1963379 500 384 2 114 +349.43 +/- 31.99
141591 ncm-et-3 2020-12-19 04:43 01:13:51 1965384 500 413 3 84 +401.92 +/- 37.57
141590 ncm-et-9 2020-12-19 04:41 01:14:17 1962459 500 387 3 110 +352.8 +/- 32.64
141589 ncm-et-13 2020-12-19 04:32 01:14:41 1961843 500 402 1 97 +383.64 +/- 34.77
141588 ncm-et-10 2020-12-19 03:32 01:15:58 1967703 500 404 1 95 +387.57 +/- 35.16
141587 ncm-et-15 2020-12-19 03:29 01:13:47 1960772 500 398 1 101 +375.98 +/- 34.04
141586 ncm-et-4 2020-12-19 03:29 01:18:02 1905633 500 404 1 95 +387.57 +/- 35.16
141585 ncm-et-3 2020-12-19 03:27 01:15:30 1972678 500 410 1 89 +399.81 +/- 36.38
141584 ncm-et-9 2020-12-19 03:26 01:14:10 1968637 500 394 1 105 +368.59 +/- 33.35
141583 ncm-et-13 2020-12-19 03:16 01:15:26 1961701 500 379 4 117 +338.04 +/- 31.63
141582 ncm-et-10 2020-12-19 02:13 01:17:49 1951764 500 399 4 97 +372.25 +/- 34.89
141581 ncm-et-15 2020-12-19 02:13 01:15:35 1972972 500 399 5 96 +370.41 +/- 35.09
141580 ncm-et-3 2020-12-19 02:12 01:14:22 1970796 500 391 2 107 +361.43 +/- 33.08
141579 ncm-et-9 2020-12-19 02:11 01:13:58 1960461 500 400 1 99 +379.78 +/- 34.4
141578 ncm-et-4 2020-12-19 02:10 01:17:50 1913141 500 383 1 116 +349.43 +/- 31.64
141577 ncm-et-13 2020-12-19 02:00 01:14:08 1960921 500 399 1 100 +377.87 +/- 34.22
141576 ncm-et-15 2020-12-19 00:56 01:15:20 1971269 500 409 4 87 +391.57 +/- 36.91
141575 ncm-et-10 2020-12-19 00:56 01:16:33 1956943 500 407 3 90 +389.56 +/- 36.25
141574 ncm-et-3 2020-12-19 00:55 01:15:21 1970329 500 403 3 94 +381.7 +/- 35.44
141573 ncm-et-9 2020-12-19 00:55 01:15:04 1969713 500 391 0 109 +364.98 +/- 32.64
141572 ncm-et-4 2020-12-19 00:54 01:15:02 1971875 500 389 2 109 +357.94 +/- 32.76
141571 ncm-et-13 2020-12-19 00:44 01:14:52 1963840 500 397 3 100 +370.41 +/- 34.31
141570 ncm-et-10 2020-12-18 23:39 01:15:33 1968160 500 415 1 84 +410.58 +/- 37.5
141569 ncm-et-4 2020-12-18 23:39 01:14:13 1968316 500 384 2 114 +349.43 +/- 31.99
141568 ncm-et-9 2020-12-18 23:39 01:15:09 1971267 500 392 2 106 +363.2 +/- 33.24
141567 ncm-et-15 2020-12-18 23:39 01:16:22 1962153 500 401 6 93 +372.25 +/- 35.66
141566 ncm-et-3 2020-12-18 23:39 01:15:27 1975293 500 396 2 102 +370.41 +/- 33.92

Commit

Commit ID 1f3b5b8b54fbf9d3b74bcba831466eeb1104b421
Author pb00067
Date 2020-12-18 20:19:46 UTC
Simplify condition for assigning static-eval based bonus for quiet move ordering and simplify bonus formula. Due to clamping the bonus to relative low values the impact on high depths is minimal, thus the restriction to low depths seems not necessary. Also the condition of movecount in previous node seems to be not determinant. Passed STC: LLR: 2.95 (-2.94,2.94) {-1.25,0.25} Total: 14600 W: 1424 L: 1323 D: 11853 Ptnml(0-2): 55, 1033, 5020, 1140, 52 https://tests.stockfishchess.org/tests/view/5fd67b381ac16912018885ec Passed LTC: LLR: 2.95 (-2.94,2.94) {-0.75,0.25} Total: 85008 W: 3218 L: 3206 D: 78584 Ptnml(0-2): 49, 2840, 36700, 2880, 35 https://tests.stockfishchess.org/tests/view/5fd6af041ac16912018885f8 closes https://github.com/official-stockfish/Stockfish/pull/3265 bench: 4524994
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