Dev Builds » 20211217-1737

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 11:15:43 1950486 3315 2847 1 467 +447.39 +/- 15.75
ncm-et-4 11:15:30 1961504 3363 2918 9 436 +456.14 +/- 16.34
ncm-et-9 11:15:04 1959125 3329 2848 5 476 +441.52 +/- 15.61
ncm-et-10 11:15:17 1956729 3326 2846 4 476 +442.12 +/- 15.61
ncm-et-13 11:15:48 1957331 3332 2889 8 435 +455.65 +/- 16.35
ncm-et-15 11:16:01 1956650 3335 2840 6 489 +436.15 +/- 15.41
20000 17188 33 2779 +446.37 +/- 6.45

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
155385 ncm-et-13 2021-12-19 06:27 00:06:25 1966632 27 21 0 6 +361.18 +/- 167.98
155384 ncm-et-9 2021-12-19 06:26 00:06:22 1959568 28 24 0 4 +445.49 +/- 274.81
155383 ncm-et-3 2021-12-19 06:26 00:06:39 1949634 27 25 0 2 +565.82 +/- 395.19
155382 ncm-et-10 2021-12-19 06:25 00:07:15 1968517 33 29 0 4 +476.05 +/- 284.87
155381 ncm-et-4 2021-12-19 06:25 00:07:45 1963689 33 30 0 3 +528.77 +/- 403.68
155380 ncm-et-15 2021-12-19 06:23 00:09:26 1956223 43 39 0 4 +524.61 +/- 300.34
155379 ncm-et-9 2021-12-19 04:44 01:42:05 1956942 500 426 1 73 +436.43 +/- 40.36
155378 ncm-et-3 2021-12-19 04:43 01:42:15 1953284 500 429 0 71 +446.7 +/- 40.89
155377 ncm-et-10 2021-12-19 04:43 01:41:23 1951919 500 421 0 79 +426.65 +/- 38.66
155376 ncm-et-15 2021-12-19 04:43 01:39:30 1961842 500 439 2 59 +468.96 +/- 45.15
155375 ncm-et-13 2021-12-19 04:43 01:42:47 1954346 500 448 1 51 +500.83 +/- 48.73
155374 ncm-et-4 2021-12-19 04:43 01:41:07 1956944 500 429 1 70 +444.09 +/- 41.26
155331 ncm-et-15 2021-12-18 16:27 00:59:16 1956800 292 248 1 43 +431.35 +/- 53.16
155330 ncm-et-3 2021-12-18 16:27 00:59:18 1948276 288 252 0 36 +470.43 +/- 58.37
155329 ncm-et-10 2021-12-18 16:26 00:59:52 1947522 293 254 1 38 +454.05 +/- 56.81
155328 ncm-et-9 2021-12-18 16:24 01:02:13 1947346 301 255 0 46 +432.92 +/- 51.17
155327 ncm-et-13 2021-12-18 16:23 01:02:47 1953745 305 262 0 43 +448.04 +/- 53.07
155326 ncm-et-4 2021-12-18 16:21 01:04:46 1967698 330 293 0 37 +490.51 +/- 57.59
155325 ncm-et-15 2021-12-18 14:44 01:42:00 1954956 500 422 0 78 +429.05 +/- 38.92
155324 ncm-et-3 2021-12-18 14:43 01:42:28 1938224 500 436 0 64 +466.03 +/- 43.18
155323 ncm-et-10 2021-12-18 14:43 01:41:59 1951733 500 435 0 65 +463.15 +/- 42.83
155322 ncm-et-13 2021-12-18 14:43 01:39:12 1966780 500 433 1 66 +454.76 +/- 42.55
155321 ncm-et-9 2021-12-18 14:42 01:41:08 1961081 500 431 0 69 +452.04 +/- 41.5
155320 ncm-et-4 2021-12-18 14:40 01:40:51 1959543 500 425 1 74 +433.94 +/- 40.08
155319 ncm-et-10 2021-12-18 13:02 01:40:57 1959084 500 433 0 67 +457.52 +/- 42.15
155318 ncm-et-3 2021-12-18 13:02 01:41:02 1945240 500 419 0 81 +421.93 +/- 38.15
155317 ncm-et-15 2021-12-18 13:01 01:42:48 1956506 500 423 1 76 +429.05 +/- 39.52
155316 ncm-et-13 2021-12-18 13:00 01:42:23 1939544 500 421 0 79 +426.65 +/- 38.66
155315 ncm-et-9 2021-12-18 12:59 01:41:48 1953595 500 431 2 67 +446.7 +/- 42.25
155314 ncm-et-4 2021-12-18 12:58 01:41:06 1962921 500 428 1 71 +441.5 +/- 40.95
155313 ncm-et-10 2021-12-18 11:19 01:41:54 1952569 500 412 2 86 +401.92 +/- 37.09
155312 ncm-et-15 2021-12-18 11:19 01:41:05 1955882 500 426 2 72 +433.94 +/- 40.69
155311 ncm-et-3 2021-12-18 11:19 01:42:34 1950722 500 435 1 64 +460.32 +/- 43.24
155310 ncm-et-9 2021-12-18 11:18 01:40:52 1966163 500 416 1 83 +412.8 +/- 37.74
155309 ncm-et-13 2021-12-18 11:18 01:41:46 1953739 500 436 0 64 +466.03 +/- 43.18
155308 ncm-et-4 2021-12-18 11:17 01:40:30 1959393 500 440 1 59 +474.93 +/- 45.13
155307 ncm-et-3 2021-12-18 09:38 01:39:29 1963999 500 416 0 84 +415.04 +/- 37.43
155306 ncm-et-15 2021-12-18 09:38 01:40:34 1955875 500 420 0 80 +424.27 +/- 38.4
155305 ncm-et-9 2021-12-18 09:37 01:39:58 1963999 500 433 0 67 +457.52 +/- 42.15
155304 ncm-et-13 2021-12-18 09:37 01:39:49 1966004 500 437 3 60 +460.32 +/- 44.73
155303 ncm-et-4 2021-12-18 09:37 01:39:18 1962457 500 432 3 65 +446.7 +/- 42.92
155302 ncm-et-10 2021-12-18 09:36 01:42:31 1957093 500 427 0 73 +441.5 +/- 40.29
155301 ncm-et-4 2021-12-18 07:56 01:40:07 1959390 500 441 2 57 +474.93 +/- 45.97
155300 ncm-et-9 2021-12-18 07:56 01:40:38 1964312 500 432 1 67 +452.04 +/- 42.22
155299 ncm-et-10 2021-12-18 07:56 01:39:26 1965399 500 435 1 64 +460.32 +/- 43.24
155298 ncm-et-13 2021-12-18 07:56 01:40:39 1957863 500 431 3 66 +444.09 +/- 42.58
155297 ncm-et-15 2021-12-18 07:56 01:41:22 1955117 500 423 0 77 +431.48 +/- 39.18
155296 ncm-et-3 2021-12-18 07:56 01:41:58 1954510 500 435 0 65 +463.15 +/- 42.83

Commit

Commit ID dc5d9bdfee70f4267d9a49ad71e5ee478dd50ca5
Author pb00067
Date 2021-12-17 17:37:41 UTC
Remove lowPly history Seems that after pull request #3731 (Capping stat bonus at 2000) this heuristic is no longer useful. STC: https://tests.stockfishchess.org/tests/view/61b8d0e2dffbe89a35815444 LLR: 2.94 (-2.94,2.94) <-2.25,0.25> Total: 30672 W: 7974 L: 7812 D: 14886 Ptnml(0-2): 106, 3436, 8072, 3634, 88 LTC: https://tests.stockfishchess.org/tests/view/61b8e90cdffbe89a35815a67 LLR: 2.94 (-2.94,2.94) <-2.25,0.25> Total: 42448 W: 10884 L: 10751 D: 20813 Ptnml(0-2): 23, 4394, 12267, 4507, 33 closes https://github.com/official-stockfish/Stockfish/pull/3853 bench: 4474950
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