Dev Builds » 20211207-1715

You are viewing an old NCM Stockfish dev build test. You may find the most recent dev build tests using Stockfish 15 as the baseline here.

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 14. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host Duration Avg Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo
ncm-dbt-01 09:55:30 1145726 3346 1135 515 1696 +65.13 ± 5.84 3 160 744 746 20 +131.12 ± 12.49
ncm-dbt-02 09:51:15 1266859 3288 1117 499 1672 +66.09 ± 5.86 5 146 737 738 18 +134.15 ± 12.54
ncm-dbt-03 09:56:09 1277369 3328 1170 497 1661 +71.24 ± 5.67 1 128 754 759 22 +143.82 ± 12.38
ncm-dbt-04 09:55:55 1251792 3354 1173 504 1677 +70.24 ± 5.71 1 137 754 762 23 +141.36 ± 12.39
ncm-dbt-05 09:52:46 1260613 3332 1148 554 1630 +62.61 ± 5.7 1 159 763 731 12 +126.94 ± 12.32
ncm-dbt-06 09:56:41 1260925 3352 1163 485 1704 +71.26 ± 5.82 0 163 685 815 13 +145.86 ± 13.01
20000 6906 3054 10040 +67.76 ± 2.36 11 893 4437 4551 108 +137.17 ± 5.11

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
206406 ncm-dbt-02 1220323 124 43 20 61 +65.2 ± 35.41 2 5 24 30 1 +141.89 ± 70.61
206405 ncm-dbt-03 1259795 166 56 23 87 +70.0 ± 23.39 0 5 40 38 0 +146.2 ± 53.9
206404 ncm-dbt-05 1239541 166 58 29 79 +61.32 ± 27.11 0 10 35 37 1 +121.98 ± 58.21
206403 ncm-dbt-01 1090925 178 65 33 80 +63.15 ± 25.82 1 7 41 39 1 +130.76 ± 53.67
206402 ncm-dbt-06 1215722 182 69 28 85 +79.63 ± 25.76 0 10 30 51 0 +168.64 ± 62.29
206401 ncm-dbt-04 1228257 184 62 28 94 +64.94 ± 23.48 0 7 45 39 1 +130.42 ± 50.87
206400 ncm-dbt-02 1242484 500 165 73 262 +64.66 ± 13.97 0 17 127 103 3 +129.35 ± 29.91
206399 ncm-dbt-03 1227962 500 170 79 251 +63.94 ± 14.91 0 24 114 109 3 +127.76 ± 31.99
206398 ncm-dbt-05 1227272 500 178 87 235 +63.94 ± 14.23 0 21 118 110 1 +130.94 ± 31.35
206397 ncm-dbt-01 1097617 500 176 78 246 +68.99 ± 15.11 1 21 110 115 3 +140.62 ± 32.58
206396 ncm-dbt-06 1234828 500 171 62 267 +76.97 ± 15.38 0 23 99 124 4 +155.54 ± 34.37
206395 ncm-dbt-04 1202263 500 174 91 235 +58.21 ± 14.39 0 24 120 105 1 +118.33 ± 31.1
206394 ncm-dbt-02 1230391 500 179 68 253 +78.44 ± 14.6 1 17 103 128 1 +165.8 ± 33.7
206393 ncm-dbt-03 1246603 500 182 85 233 +68.27 ± 13.54 0 16 121 113 0 +142.26 ± 30.77
206392 ncm-dbt-05 1238816 500 180 76 244 +73.33 ± 14.85 0 20 110 116 4 +147.19 ± 32.57
206391 ncm-dbt-04 1211829 500 185 64 251 +85.78 ± 15.49 1 17 98 128 6 +174.55 ± 34.58
206390 ncm-dbt-06 1209418 500 179 74 247 +74.06 ± 15.15 0 24 99 125 2 +152.18 ± 34.35
206389 ncm-dbt-01 1088974 500 170 82 248 +61.79 ± 15.08 0 24 119 102 5 +119.89 ± 31.25
206388 ncm-dbt-02 1221688 500 174 75 251 +69.71 ± 13.88 0 15 124 108 3 +140.62 ± 30.27
206387 ncm-dbt-03 1262593 500 185 83 232 +71.88 ± 15.47 0 25 102 119 4 +143.89 ± 33.85
206386 ncm-dbt-05 1228885 500 160 80 260 +56.07 ± 14.83 1 25 118 105 1 +115.23 ± 31.41
206385 ncm-dbt-04 1223663 500 181 80 239 +71.16 ± 15.32 0 22 111 111 6 +138.99 ± 32.43
206384 ncm-dbt-01 1105541 500 165 73 262 +64.66 ± 15.72 0 29 104 113 4 +127.76 ± 33.49
206383 ncm-dbt-06 1257479 500 166 73 261 +65.38 ± 15.36 0 29 100 120 1 +134.15 ± 34.11
206382 ncm-dbt-02 1240462 500 158 80 262 +54.64 ± 15.15 0 30 114 104 2 +109.07 ± 32.0
206381 ncm-dbt-03 1234719 500 182 68 250 +80.63 ± 15.22 1 15 110 117 7 +160.64 ± 32.5
206380 ncm-dbt-05 1225735 500 185 81 234 +73.33 ± 14.15 0 18 111 120 1 +152.18 ± 32.38
206379 ncm-dbt-04 1220605 500 181 72 247 +76.97 ± 14.97 0 19 108 118 5 +153.86 ± 32.88
206378 ncm-dbt-01 1098645 500 160 73 267 +61.08 ± 15.05 1 25 111 112 1 +126.18 ± 32.44
206377 ncm-dbt-06 1221443 500 162 74 264 +61.79 ± 15.73 0 34 94 122 0 +127.76 ± 34.92
206376 ncm-dbt-02 1237579 500 175 73 252 +71.89 ± 15.99 1 28 91 128 2 +148.85 ± 35.57
206375 ncm-dbt-05 1220569 500 168 86 246 +57.5 ± 14.63 0 26 117 106 1 +116.78 ± 31.56
206374 ncm-dbt-01 1079437 500 172 87 241 +59.64 ± 14.59 0 24 119 105 2 +119.89 ± 31.25
206373 ncm-dbt-03 1233748 500 169 72 259 +68.27 ± 13.83 0 16 123 109 2 +138.99 ± 30.46
206372 ncm-dbt-04 1223276 500 164 76 260 +61.79 ± 14.14 0 21 121 107 1 +126.18 ± 30.9
206371 ncm-dbt-06 1232327 500 184 71 245 +79.9 ± 14.07 0 15 109 124 2 +165.8 ± 32.64
206370 ncm-dbt-02 1247452 500 168 85 247 +58.21 ± 15.7 1 27 115 102 5 +113.68 ± 31.86
206369 ncm-dbt-05 1212227 500 167 92 241 +52.51 ± 15.31 0 32 113 103 2 +104.49 ± 32.14
206368 ncm-dbt-01 1103115 500 163 69 268 +66.1 ± 15.13 0 25 109 113 3 +132.54 ± 32.75
206367 ncm-dbt-03 1253552 500 175 68 257 +75.52 ± 14.93 0 19 110 116 5 +150.51 ± 32.56
206366 ncm-dbt-04 1221852 500 166 68 266 +68.99 ± 14.7 0 22 110 116 2 +140.62 ± 32.58
206365 ncm-dbt-06 1219341 500 174 74 252 +70.43 ± 14.75 0 20 114 112 4 +140.62 ± 31.94
177667 ncm-dbt-02 1494498 164 55 25 84 +64.27 ± 25.48 0 7 39 35 1 +128.42 ± 54.94
177666 ncm-dbt-04 1482592 170 60 25 85 +72.56 ± 23.92 0 5 41 38 1 +147.19 ± 53.19
177665 ncm-dbt-06 1496843 170 58 29 83 +59.85 ± 24.49 0 8 40 37 0 +123.49 ± 54.31
177664 ncm-dbt-01 1501554 168 64 20 84 +93.16 ± 25.04 0 5 31 47 1 +196.41 ± 62.33
177663 ncm-dbt-05 1491862 166 52 23 91 +61.32 ± 25.03 0 7 41 34 1 +121.98 ± 53.38
177662 ncm-dbt-03 1499980 162 51 19 92 +69.54 ± 26.8 0 8 34 38 1 +140.1 ± 59.2

Commit

Commit ID c228f3196ae9965250f317c8784012c2485228c4
Author Michael Chaly
Date 2021-12-07 17:15:06 UTC
Introduce post-lmr extensions This idea is somewhat similar to extentions in LMR but has a different flavour. If result of LMR was really good - thus exceeded alpha by some pretty big given margin, we can extend move after LMR in full depth search with 0 window. The idea is that this move is probably a fail high with somewhat of a big probability so extending it makes a lot of sense passed STC https://tests.stockfishchess.org/tests/view/61ad45ea56fcf33bce7d74b7 LLR: 2.94 (-2.94,2.94) <0.00,2.50> Total: 59680 W: 15531 L: 15215 D: 28934 Ptnml(0-2): 193, 6711, 15734, 6991, 211 passed LTC https://tests.stockfishchess.org/tests/view/61ad9ff356fcf33bce7d8646 LLR: 2.95 (-2.94,2.94) <0.50,3.00> Total: 59104 W: 15321 L: 14992 D: 28791 Ptnml(0-2): 53, 6023, 17065, 6364, 47 closes https://github.com/official-stockfish/Stockfish/pull/3838 bench 4881329
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