Dev Builds » 20210522-1909

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 08:14:09 1966903 3353 2735 11 607 +394.02 +/- 13.81
ncm-et-4 08:14:05 1965032 3375 2702 14 659 +378.29 +/- 13.25
ncm-et-9 08:14:06 1962157 3338 2709 12 617 +389.53 +/- 13.7
ncm-et-10 08:14:21 1957354 3315 2675 11 629 +385.22 +/- 13.56
ncm-et-13 08:14:20 1962435 3330 2705 17 608 +388.77 +/- 13.81
ncm-et-15 08:14:02 1956146 3289 2676 16 597 +390.32 +/- 13.94
20000 16202 81 3717 +387.62 +/- 5.58

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
147345 ncm-et-15 2021-05-23 10:29 00:44:12 1958943 289 246 0 43 +437.95 +/- 53.03
147344 ncm-et-10 2021-05-23 10:26 00:47:14 1958471 315 245 1 69 +358.46 +/- 41.34
147343 ncm-et-13 2021-05-23 10:24 00:49:18 1962923 330 280 1 49 +430.82 +/- 49.64
147342 ncm-et-9 2021-05-23 10:23 00:50:30 1962151 338 278 3 57 +395.25 +/- 45.88
147341 ncm-et-3 2021-05-23 10:21 00:52:07 1968370 353 289 3 61 +391.77 +/- 44.29
147340 ncm-et-4 2021-05-23 10:18 00:54:44 1962461 375 303 2 70 +384.29 +/- 41.2
147339 ncm-et-15 2021-05-23 09:12 01:15:55 1957102 500 406 2 92 +389.56 +/- 35.8
147338 ncm-et-10 2021-05-23 09:11 01:14:52 1957858 500 414 0 86 +410.58 +/- 36.97
147337 ncm-et-9 2021-05-23 09:09 01:12:52 1976555 500 410 0 90 +401.92 +/- 36.1
147336 ncm-et-3 2021-05-23 09:08 01:12:55 1971281 500 417 1 82 +415.05 +/- 37.98
147335 ncm-et-13 2021-05-23 09:07 01:16:06 1954993 500 412 0 88 +406.2 +/- 36.53
147334 ncm-et-4 2021-05-23 09:04 01:13:18 1963076 500 396 0 104 +374.11 +/- 33.46
147333 ncm-et-15 2021-05-23 07:57 01:14:56 1949946 500 401 3 96 +377.87 +/- 35.05
147332 ncm-et-9 2021-05-23 07:57 01:11:46 1962006 500 400 1 99 +379.78 +/- 34.4
147331 ncm-et-10 2021-05-23 07:55 01:14:58 1954803 500 402 1 97 +383.64 +/- 34.77
147330 ncm-et-13 2021-05-23 07:54 01:12:56 1968944 500 401 2 97 +379.78 +/- 34.83
147329 ncm-et-3 2021-05-23 07:52 01:14:49 1952985 500 409 0 91 +399.81 +/- 35.89
147328 ncm-et-4 2021-05-23 07:51 01:12:33 1960321 500 401 1 98 +381.7 +/- 34.59
147327 ncm-et-15 2021-05-23 06:42 01:13:51 1963853 500 406 4 90 +385.59 +/- 36.27
147326 ncm-et-9 2021-05-23 06:40 01:15:47 1951532 500 400 1 99 +379.78 +/- 34.4
147325 ncm-et-10 2021-05-23 06:39 01:14:57 1953900 500 391 5 104 +356.21 +/- 33.66
147324 ncm-et-13 2021-05-23 06:39 01:14:07 1969242 500 414 5 81 +399.81 +/- 38.28
147323 ncm-et-3 2021-05-23 06:37 01:14:21 1965996 500 412 2 86 +401.92 +/- 37.09
147322 ncm-et-4 2021-05-23 06:37 01:13:34 1967078 500 399 1 100 +377.87 +/- 34.22
147321 ncm-et-15 2021-05-23 05:28 01:13:52 1959449 500 411 2 87 +399.81 +/- 36.87
147320 ncm-et-10 2021-05-23 05:26 01:12:51 1961852 500 411 1 88 +401.92 +/- 36.6
147319 ncm-et-13 2021-05-23 05:25 01:12:57 1960317 500 398 4 98 +370.41 +/- 34.7
147318 ncm-et-9 2021-05-23 05:25 01:14:16 1961849 500 409 3 88 +393.6 +/- 36.68
147317 ncm-et-3 2021-05-23 05:23 01:13:29 1961116 500 392 2 106 +363.2 +/- 33.24
147316 ncm-et-4 2021-05-23 05:23 01:13:49 1965896 500 393 4 103 +361.43 +/- 33.81
147315 ncm-et-10 2021-05-23 04:12 01:13:48 1964184 500 416 1 83 +412.8 +/- 37.74
147314 ncm-et-15 2021-05-23 04:11 01:15:45 1946776 500 404 3 93 +383.64 +/- 35.64
147313 ncm-et-13 2021-05-23 04:11 01:13:37 1961536 500 399 2 99 +375.98 +/- 34.46
147312 ncm-et-9 2021-05-23 04:10 01:14:25 1963752 500 413 1 86 +406.2 +/- 37.04
147311 ncm-et-4 2021-05-23 04:09 01:13:21 1974051 500 418 3 79 +412.8 +/- 38.79
147310 ncm-et-3 2021-05-23 04:08 01:13:59 1975450 500 408 2 90 +393.6 +/- 36.22
147309 ncm-et-15 2021-05-23 02:55 01:15:31 1956953 500 402 2 96 +381.7 +/- 35.02
147308 ncm-et-3 2021-05-23 02:55 01:12:29 1973124 500 408 1 91 +395.65 +/- 35.96
147307 ncm-et-13 2021-05-23 02:55 01:15:19 1959092 500 401 3 96 +377.87 +/- 35.05
147306 ncm-et-4 2021-05-23 02:55 01:12:46 1962347 500 392 3 105 +361.43 +/- 33.45
147305 ncm-et-9 2021-05-23 02:55 01:14:30 1957256 500 399 3 98 +374.11 +/- 34.68
147304 ncm-et-10 2021-05-23 02:55 01:15:41 1950416 500 396 2 102 +370.41 +/- 33.92

Commit

Commit ID a2f01c07eb91524fc372bd82d6513ab058d3e043
Author Stéphane Nicolet
Date 2021-05-22 19:09:22 UTC
Sometimes change the (materialist, positional) balance Our new nets output two values for the side to move in the last layer. We can interpret the first value as a material evaluation of the position, and the second one as the dynamic, positional value of the location of pieces. This patch changes the balance for the (materialist, positional) parts of the score from (128, 128) to (121, 135) when the piece material is equal between the two players, but keeps the standard (128, 128) balance when one player is at least an exchange up. Passed STC: LLR: 2.93 (-2.94,2.94) <-0.50,2.50> Total: 15936 W: 1421 L: 1266 D: 13249 Ptnml(0-2): 37, 1037, 5694, 1134, 66 https://tests.stockfishchess.org/tests/view/60a82df9ce8ea25a3ef0408f Passed LTC: LLR: 2.94 (-2.94,2.94) <0.50,3.50> Total: 13904 W: 516 L: 410 D: 12978 Ptnml(0-2): 4, 374, 6088, 484, 2 https://tests.stockfishchess.org/tests/view/60a8bbf9ce8ea25a3ef04101 closes https://github.com/official-stockfish/Stockfish/pull/3492 Bench: 3856635
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