Dev Builds » 20211014-0747

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 12:33:44 1962217 5020 4293 7 720 +441.23 +/- 12.69
ncm-et-10 12:34:21 1955021 4974 4190 12 772 +424.24 +/- 12.25
ncm-et-13 12:33:57 1961353 5025 4293 10 722 +439.38 +/- 12.67
ncm-et-15 12:33:35 1957742 4981 4217 5 759 +431.01 +/- 12.35
20000 16993 34 2973 +433.88 +/- 6.24

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
152289 ncm-et-3 2021-10-15 11:48 00:03:45 1961746 20 17 0 3 +436.32 +/- 451.5
152288 ncm-et-13 2021-10-15 11:47 00:04:35 1963845 25 21 0 4 +424.19 +/- 267.7
152287 ncm-et-10 2021-10-15 10:40 01:12:16 1956946 474 392 1 81 +407.18 +/- 38.2
152286 ncm-et-15 2021-10-15 10:39 01:12:33 1956641 481 399 0 82 +412.26 +/- 37.89
152285 ncm-et-13 2021-10-15 10:33 01:14:00 1959393 500 435 1 64 +460.32 +/- 43.24
152284 ncm-et-3 2021-10-15 10:32 01:15:53 1958779 500 425 0 75 +436.43 +/- 39.73
152283 ncm-et-15 2021-10-15 09:24 01:15:12 1962774 500 408 0 92 +397.72 +/- 35.69
152282 ncm-et-10 2021-10-15 09:22 01:16:43 1946764 500 420 4 76 +415.05 +/- 39.57
152281 ncm-et-13 2021-10-15 09:18 01:13:46 1964643 500 417 1 82 +415.05 +/- 37.98
152280 ncm-et-3 2021-10-15 09:16 01:15:03 1959397 500 432 0 68 +454.76 +/- 41.82
152279 ncm-et-15 2021-10-15 08:09 01:13:36 1960158 500 417 0 83 +417.31 +/- 37.67
152278 ncm-et-10 2021-10-15 08:05 01:17:02 1958936 500 419 0 81 +421.93 +/- 38.15
152277 ncm-et-13 2021-10-15 08:03 01:14:50 1960464 500 420 1 79 +421.93 +/- 38.73
152276 ncm-et-3 2021-10-15 07:59 01:16:32 1954505 500 442 1 57 +481.1 +/- 45.96
152275 ncm-et-15 2021-10-15 06:53 01:16:09 1957861 500 421 1 78 +424.28 +/- 38.99
152274 ncm-et-10 2021-10-15 06:49 01:14:54 1958337 500 424 2 74 +429.05 +/- 40.11
152273 ncm-et-13 2021-10-15 06:47 01:15:43 1950114 500 437 0 63 +468.95 +/- 43.54
152272 ncm-et-3 2021-10-15 06:44 01:14:39 1967399 500 418 0 82 +419.61 +/- 37.91
152271 ncm-et-15 2021-10-15 05:35 01:16:45 1942382 500 420 0 80 +424.27 +/- 38.4
152270 ncm-et-10 2021-10-15 05:32 01:16:51 1958627 500 428 2 70 +438.95 +/- 41.29
152269 ncm-et-13 2021-10-15 05:32 01:14:20 1962634 500 437 1 62 +466.04 +/- 43.97
152268 ncm-et-3 2021-10-15 05:27 01:15:53 1955732 500 427 3 70 +433.94 +/- 41.3
152267 ncm-et-15 2021-10-15 04:19 01:15:53 1958025 500 429 1 70 +444.09 +/- 41.26
152266 ncm-et-10 2021-10-15 04:16 01:14:55 1945713 500 428 0 72 +444.08 +/- 40.59
152265 ncm-et-13 2021-10-15 04:14 01:16:36 1957716 500 427 1 72 +438.95 +/- 40.66
152264 ncm-et-3 2021-10-15 04:12 01:14:17 1962622 500 433 0 67 +457.52 +/- 42.15
152263 ncm-et-15 2021-10-15 03:02 01:15:35 1960320 500 442 0 58 +484.24 +/- 45.47
152262 ncm-et-10 2021-10-15 03:00 01:15:29 1955574 500 407 2 91 +391.57 +/- 36.01
152261 ncm-et-13 2021-10-15 02:58 01:15:19 1963849 500 420 0 80 +424.27 +/- 38.4
152260 ncm-et-3 2021-10-15 02:57 01:14:35 1966156 500 422 1 77 +426.65 +/- 39.25
152259 ncm-et-15 2021-10-15 01:47 01:14:50 1964002 500 430 2 68 +444.09 +/- 41.92
152258 ncm-et-13 2021-10-15 01:43 01:15:07 1967234 500 423 2 75 +426.65 +/- 39.83
152257 ncm-et-10 2021-10-15 01:43 01:16:39 1955109 500 419 1 80 +419.61 +/- 38.47
152256 ncm-et-3 2021-10-15 01:42 01:13:41 1968621 500 429 1 70 +444.09 +/- 41.26
152255 ncm-et-15 2021-10-15 00:29 01:17:02 1956176 500 428 1 71 +441.5 +/- 40.95
152254 ncm-et-13 2021-10-15 00:27 01:14:48 1960658 500 433 0 67 +457.52 +/- 42.15
152253 ncm-et-3 2021-10-15 00:27 01:14:48 1959551 500 422 1 77 +426.65 +/- 39.25
152252 ncm-et-10 2021-10-15 00:27 01:15:05 1952984 500 424 0 76 +433.94 +/- 39.45
152251 ncm-et-15 2021-10-14 23:13 01:16:00 1959086 500 423 0 77 +431.48 +/- 39.18
152250 ncm-et-10 2021-10-14 23:12 01:14:27 1961228 500 429 0 71 +446.7 +/- 40.89
152249 ncm-et-3 2021-10-14 23:12 01:14:38 1969882 500 426 0 74 +438.95 +/- 40.01
152248 ncm-et-13 2021-10-14 23:12 01:14:53 1964340 500 423 3 74 +424.28 +/- 40.13

Commit

Commit ID 0bddd942b4d096ff31132a4c3e7aef016d0f2d41
Author bmc4
Date 2021-10-14 07:47:20 UTC
Simplify ttHitAverage away Simplify ttHitAverage away, which was introduced in the following commit: [here](https://github.com/BM123499/Stockfish/commit/fe124896b241b4791454fd151da10101ad48f6d7) A few tweaks with Elo gaining bounds have been tried to keep the code, but they all failed: https://tests.stockfishchess.org/tests/view/61656f7683dd501a05b0b292 https://tests.stockfishchess.org/tests/view/6165c0ca83dd501a05b0b2ca https://tests.stockfishchess.org/tests/view/6165bf9683dd501a05b0b2c8 https://tests.stockfishchess.org/tests/view/6165719483dd501a05b0b29b https://tests.stockfishchess.org/tests/view/6166c7fd83dd501a05b0b353 https://tests.stockfishchess.org/tests/view/6166c63b83dd501a05b0b350 STC: LLR: 2.94 (-2.94,2.94) <-2.50,0.50> Total: 58504 W: 14781 L: 14694 D: 29029 Ptnml(0-2): 175, 6718, 15426, 6711, 222 https://tests.stockfishchess.org/tests/view/6165112c83dd501a05b0b257 LTC: LLR: 2.96 (-2.94,2.94) <-2.50,0.50> Total: 33480 W: 8448 L: 8332 D: 16700 Ptnml(0-2): 21, 3569, 9447, 3679, 24 https://tests.stockfishchess.org/tests/view/61656fcf83dd501a05b0b294 change https://github.com/official-stockfish/Stockfish/pull/3739 bench: 4540339
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