Dev Builds » 20211214-1241

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 11:09:51 1959073 3322 2868 11 443 +449.39 +/- 16.21
ncm-et-4 11:09:46 1965128 3353 2896 7 450 +451.52 +/- 16.07
ncm-et-9 11:09:52 1960763 3359 2903 4 452 +453.47 +/- 16.03
ncm-et-10 11:09:56 1954425 3310 2831 5 474 +441.22 +/- 15.65
ncm-et-13 11:09:50 1960094 3325 2849 7 469 +442.45 +/- 15.74
ncm-et-15 11:09:51 1960566 3331 2882 6 443 +453.95 +/- 16.2
20000 17229 40 2731 +448.62 +/- 6.51

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
155252 ncm-et-10 2021-12-15 05:20 01:03:02 1952217 310 266 0 44 +446.78 +/- 52.42
155251 ncm-et-3 2021-12-15 05:17 01:05:11 1964508 322 281 0 41 +467.0 +/- 54.48
155250 ncm-et-13 2021-12-15 05:16 01:06:10 1960774 325 281 1 43 +451.42 +/- 53.21
155249 ncm-et-15 2021-12-15 05:16 01:06:33 1965579 331 281 0 50 +435.11 +/- 49.0
155248 ncm-et-4 2021-12-15 05:13 01:09:17 1969708 353 302 0 51 +443.46 +/- 48.52
155247 ncm-et-9 2021-12-15 05:09 01:13:57 1957705 359 314 1 44 +465.84 +/- 52.6
155246 ncm-et-10 2021-12-15 03:39 01:40:25 1952677 500 419 2 79 +417.32 +/- 38.77
155245 ncm-et-3 2021-12-15 03:37 01:39:37 1973740 500 421 2 77 +421.93 +/- 39.29
155244 ncm-et-13 2021-12-15 03:37 01:39:17 1967264 500 427 1 72 +438.95 +/- 40.66
155243 ncm-et-15 2021-12-15 03:34 01:41:09 1960176 500 433 3 64 +449.35 +/- 43.26
155242 ncm-et-4 2021-12-15 03:33 01:40:06 1962467 500 428 1 71 +441.5 +/- 40.95
155241 ncm-et-9 2021-12-15 03:31 01:37:14 1969571 500 435 0 65 +463.15 +/- 42.83
155240 ncm-et-10 2021-12-15 01:56 01:41:47 1957246 500 427 1 72 +438.95 +/- 40.66
155239 ncm-et-13 2021-12-15 01:56 01:40:04 1962770 500 427 1 72 +438.95 +/- 40.66
155238 ncm-et-3 2021-12-15 01:55 01:41:39 1937440 500 451 1 48 +511.5 +/- 50.32
155237 ncm-et-4 2021-12-15 01:52 01:40:26 1970323 500 419 3 78 +415.05 +/- 39.05
155236 ncm-et-15 2021-12-15 01:51 01:42:26 1958488 500 440 0 60 +477.98 +/- 44.67
155235 ncm-et-9 2021-12-15 01:49 01:40:51 1954500 500 435 1 64 +460.32 +/- 43.24
155234 ncm-et-13 2021-12-15 00:14 01:40:56 1954240 500 438 0 62 +471.92 +/- 43.9
155233 ncm-et-3 2021-12-15 00:14 01:40:40 1967565 500 434 3 63 +452.04 +/- 43.62
155232 ncm-et-10 2021-12-15 00:13 01:42:36 1952227 500 435 1 64 +460.32 +/- 43.24
155231 ncm-et-15 2021-12-15 00:12 01:39:04 1963380 500 440 2 58 +471.92 +/- 45.55
155230 ncm-et-4 2021-12-15 00:11 01:39:44 1963087 500 434 1 65 +457.52 +/- 42.89
155229 ncm-et-9 2021-12-15 00:09 01:39:36 1960617 500 430 1 69 +446.7 +/- 41.57
155228 ncm-et-13 2021-12-14 22:33 01:40:27 1960768 500 423 3 74 +424.28 +/- 40.13
155227 ncm-et-15 2021-12-14 22:32 01:38:57 1959705 500 435 1 64 +460.32 +/- 43.24
155226 ncm-et-10 2021-12-14 22:31 01:41:08 1953911 500 431 0 69 +452.04 +/- 41.5
155225 ncm-et-3 2021-12-14 22:31 01:42:24 1955905 500 431 2 67 +446.7 +/- 42.25
155224 ncm-et-4 2021-12-14 22:30 01:40:45 1960312 500 442 1 57 +481.1 +/- 45.96
155223 ncm-et-9 2021-12-14 22:28 01:40:17 1959543 500 431 1 68 +449.35 +/- 41.89
155222 ncm-et-13 2021-12-14 20:52 01:40:44 1960947 500 426 1 73 +436.43 +/- 40.36
155221 ncm-et-10 2021-12-14 20:51 01:39:36 1961391 500 427 1 72 +438.95 +/- 40.66
155220 ncm-et-15 2021-12-14 20:50 01:41:49 1958782 500 428 0 72 +444.08 +/- 40.59
155219 ncm-et-4 2021-12-14 20:49 01:40:07 1965856 500 430 0 70 +449.35 +/- 41.19
155218 ncm-et-9 2021-12-14 20:49 01:39:01 1962481 500 423 0 77 +431.48 +/- 39.18
155217 ncm-et-3 2021-12-14 20:48 01:41:45 1953438 500 429 1 70 +444.09 +/- 41.26
155216 ncm-et-4 2021-12-14 19:09 01:39:21 1964148 500 441 1 58 +477.99 +/- 45.54
155215 ncm-et-9 2021-12-14 19:09 01:38:56 1960928 500 435 0 65 +463.15 +/- 42.83
155214 ncm-et-13 2021-12-14 19:09 01:42:12 1953898 500 427 0 73 +441.5 +/- 40.29
155213 ncm-et-15 2021-12-14 19:09 01:39:53 1957858 500 425 0 75 +436.43 +/- 39.73
155212 ncm-et-3 2021-12-14 19:09 01:38:35 1960921 500 421 2 77 +421.93 +/- 39.29
155211 ncm-et-10 2021-12-14 19:09 01:41:22 1951307 500 426 0 74 +438.95 +/- 40.01

Commit

Commit ID c6edf33f539f160d4a7009f3aac25e7ec5668eda
Author Joost VandeVondele
Date 2021-12-14 12:41:12 UTC
Remove NNUE scaling term remove pawns scaling, probably correlated with piece scaling, and might be less useful with the recent improved nets. Might allow for another tune of the scaling params. passed STC https://tests.stockfishchess.org/tests/view/61afdb2e56fcf33bce7df31a LLR: 2.95 (-2.94,2.94) <-2.25,0.25> Total: 280864 W: 72198 L: 72399 D: 136267 Ptnml(0-2): 854, 32356, 74346, 31889, 987 passed LTC https://tests.stockfishchess.org/tests/view/61b233a606b4c2dcb1b16140 LLR: 2.95 (-2.94,2.94) <-2.25,0.25> Total: 400136 W: 102669 L: 103012 D: 194455 Ptnml(0-2): 212, 42005, 116047, 41522, 282 closes https://github.com/official-stockfish/Stockfish/pull/3851 Bench: 4735679
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