Dev Builds » 20230125-0651

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 04:59:10 1200395 1658 663 163 832 +108.14 +/- 8.01 2 28 291 484 24 +228.39 +/- 19.98
ncm-dbt-02 04:57:31 1232149 1652 672 186 794 +105.32 +/- 7.61 0 31 289 495 11 +227.59 +/- 20.05
ncm-dbt-03 04:58:31 1225523 1670 686 176 808 +109.6 +/- 7.95 0 35 277 501 22 +232.49 +/- 20.51
ncm-dbt-04 04:59:28 1217535 1676 683 164 829 +111.24 +/- 7.68 0 28 282 509 19 +239.02 +/- 20.3
ncm-dbt-05 04:57:05 1240170 1658 686 160 812 +114.16 +/- 7.34 0 22 270 526 11 +252.59 +/- 20.74
ncm-dbt-06 05:00:19 1225186 1686 717 158 811 +119.72 +/- 7.63 0 26 253 543 21 +262.36 +/- 21.46
ncm-et-3 06:23:20 1303273 1666 691 166 809 +113.34 +/- 7.73 2 29 257 532 13 +250.23 +/- 21.3
ncm-et-4 06:23:49 1302909 1660 686 153 821 +115.65 +/- 7.91 0 34 249 527 20 +250.81 +/- 21.63
ncm-et-9 06:23:34 1303295 1670 673 141 856 +114.67 +/- 7.45 0 24 269 528 14 +252.1 +/- 20.79
ncm-et-10 06:24:05 1292188 1660 661 179 820 +103.87 +/- 7.76 3 26 301 486 14 +223.67 +/- 19.62
ncm-et-13 06:24:00 1305242 1676 688 189 799 +106.67 +/- 7.9 0 36 287 495 20 +225.8 +/- 20.14
ncm-et-15 06:24:27 1293211 1668 696 155 817 +116.91 +/- 7.33 0 23 258 542 11 +260.78 +/- 21.24
20000 8202 1990 9808 +111.6 +/- 2.22 7 342 3283 6168 200 +241.86 +/- 5.94

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
194830 ncm-dbt-02 1228356 152 65 15 72 +118.69 +/- 28.1 0 4 21 48 3 +251.0 +/- 76.46
194829 ncm-dbt-05 1249961 158 65 12 81 +121.23 +/- 22.53 0 1 25 52 1 +274.36 +/- 69.73
194828 ncm-dbt-01 1197576 158 65 8 85 +131.24 +/- 24.27 0 2 20 55 2 +298.76 +/- 79.39
194827 ncm-dbt-03 1212854 170 74 14 82 +128.12 +/- 22.3 0 0 28 54 3 +282.04 +/- 64.81
194826 ncm-dbt-04 1229534 176 74 16 86 +118.93 +/- 22.92 0 1 31 53 3 +254.73 +/- 61.79
194825 ncm-dbt-06 1230897 186 75 20 91 +105.89 +/- 23.6 0 4 32 55 2 +224.92 +/- 61.42
194824 ncm-dbt-05 1235012 500 208 43 249 +119.11 +/- 13.34 0 7 74 166 3 +268.17 +/- 39.97
194823 ncm-dbt-03 1227691 500 210 56 234 +110.6 +/- 14.69 0 11 81 151 7 +234.38 +/- 38.14
194822 ncm-dbt-02 1243787 500 197 54 249 +102.22 +/- 13.54 0 9 91 148 2 +221.9 +/- 35.86
194821 ncm-dbt-01 1205281 500 200 52 248 +106.01 +/- 14.36 1 5 97 139 8 +221.9 +/- 34.46
194820 ncm-dbt-06 1234837 500 214 41 245 +125.38 +/- 12.89 0 3 76 166 5 +282.94 +/- 39.21
194819 ncm-dbt-04 1205653 500 194 43 263 +108.3 +/- 13.06 0 6 89 153 2 +238.66 +/- 36.16
194818 ncm-dbt-03 1231946 500 200 57 243 +102.22 +/- 15.23 0 16 81 147 6 +213.85 +/- 38.01
194817 ncm-dbt-05 1245167 500 205 51 244 +110.6 +/- 13.22 0 7 84 157 2 +245.2 +/- 37.37
194816 ncm-dbt-02 1228298 500 199 60 241 +99.2 +/- 13.35 0 7 100 140 3 +211.87 +/- 33.93
194815 ncm-dbt-01 1195796 500 202 50 248 +109.07 +/- 14.99 1 10 82 150 7 +232.26 +/- 37.9
194814 ncm-dbt-04 1218424 500 206 51 243 +111.37 +/- 14.53 0 9 85 148 8 +234.38 +/- 37.19
194813 ncm-dbt-06 1209249 500 209 43 248 +119.89 +/- 14.02 0 10 68 168 4 +268.17 +/- 41.66
194812 ncm-dbt-03 1229603 500 202 49 249 +109.83 +/- 14.06 0 8 87 149 6 +234.38 +/- 36.71
194811 ncm-dbt-05 1230543 500 208 54 238 +110.6 +/- 13.73 0 7 87 151 5 +238.66 +/- 36.67
194810 ncm-dbt-02 1228156 500 211 57 232 +110.6 +/- 14.06 0 11 77 159 3 +243.0 +/- 39.13
194809 ncm-dbt-06 1225761 500 219 54 227 +119.11 +/- 14.84 0 9 77 154 10 +251.89 +/- 39.16
194808 ncm-dbt-01 1202930 500 196 53 251 +102.22 +/- 14.63 0 11 92 140 7 +211.87 +/- 35.7
194807 ncm-dbt-04 1216531 500 209 54 237 +111.37 +/- 14.69 0 12 77 155 6 +238.66 +/- 39.1
166286 ncm-et-10 1290256 160 63 18 79 +100.42 +/- 24.37 0 4 27 49 0 +221.14 +/- 67.12
166285 ncm-et-4 1294700 160 69 13 78 +126.96 +/- 24.21 0 3 19 57 1 +292.96 +/- 81.16
166284 ncm-et-3 1311066 166 73 15 78 +126.72 +/- 25.43 0 2 25 52 4 +269.73 +/- 70.13
166283 ncm-et-15 1282874 168 68 17 83 +108.9 +/- 23.69 0 4 25 55 0 +244.73 +/- 69.93
166282 ncm-et-9 1294616 170 63 15 92 +100.83 +/- 25.77 0 5 29 49 2 +210.48 +/- 64.56
166281 ncm-et-13 1303139 176 71 21 84 +101.49 +/- 25.17 0 5 30 51 2 +212.59 +/- 63.45
166280 ncm-et-3 1291830 500 214 42 244 +124.6 +/- 13.09 1 3 72 171 3 +288.06 +/- 40.46
166279 ncm-et-4 1311546 500 210 43 247 +120.67 +/- 14.51 0 9 73 160 8 +261.07 +/- 40.24
166278 ncm-et-10 1293637 500 196 56 248 +99.95 +/- 14.31 1 9 93 143 4 +213.85 +/- 35.47
166277 ncm-et-9 1298364 500 208 39 253 +122.24 +/- 13.66 0 5 78 160 7 +268.17 +/- 38.8
166276 ncm-et-15 1293321 500 211 40 249 +123.81 +/- 13.63 0 7 70 168 5 +277.93 +/- 41.14
166275 ncm-et-13 1299244 500 200 54 246 +104.49 +/- 14.81 0 12 87 144 7 +217.85 +/- 36.77
166274 ncm-et-3 1304144 500 203 58 239 +103.73 +/- 14.8 1 13 79 154 3 +226.0 +/- 38.55
166273 ncm-et-9 1310275 500 193 46 261 +105.25 +/- 13.05 0 7 90 152 1 +232.26 +/- 35.99
166272 ncm-et-10 1295532 500 205 56 239 +106.78 +/- 14.2 1 7 89 148 5 +230.16 +/- 36.26
166271 ncm-et-4 1303281 500 201 47 252 +110.6 +/- 14.84 0 13 76 155 6 +236.51 +/- 39.32
166270 ncm-et-13 1306587 500 208 65 227 +102.22 +/- 14.93 0 14 85 145 6 +213.85 +/- 37.18
166269 ncm-et-15 1299612 500 215 48 237 +120.67 +/- 12.22 0 3 78 168 1 +277.93 +/- 38.66
166268 ncm-et-4 1302109 500 206 50 244 +112.14 +/- 14.06 0 9 81 155 5 +243.0 +/- 38.14
166267 ncm-et-3 1306055 500 201 51 248 +107.54 +/- 14.05 0 11 81 155 3 +234.38 +/- 38.14
166266 ncm-et-9 1309925 500 209 41 250 +121.45 +/- 13.49 0 7 72 167 4 +273.0 +/- 40.54
166265 ncm-et-15 1297038 500 202 50 248 +109.07 +/- 14.05 0 9 85 151 5 +234.38 +/- 37.19
166264 ncm-et-10 1289327 500 197 49 254 +106.01 +/- 14.04 1 6 92 146 5 +228.08 +/- 35.56
166263 ncm-et-13 1311999 500 209 49 242 +115.22 +/- 13.38 0 5 85 155 5 +251.89 +/- 37.03

Commit

Commit ID d3860f8d5efa4d9df726fa605b24689d6a829c7e
Author Michael Chaly
Date 2023-01-25 06:51:19 UTC
Rebalance usage of history heuristics in pruning This patch has multiple effects: * history heuristics sum in futility pruning now can't exceed some negative value so futility pruning for moves with negative histories should become slightly less aggressive; * history heuristics are now used in SEE pruning for quiet moves; Passed STC: https://tests.stockfishchess.org/tests/view/63cde339c93e8828d0f02e3a LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 88424 W: 23681 L: 23303 D: 41440 Ptnml(0-2): 258, 9559, 24219, 9899, 277 Passed LTC: https://tests.stockfishchess.org/tests/view/63ce9009c93e8828d0f04e4f LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 79536 W: 21223 L: 20843 D: 37470 Ptnml(0-2): 22, 7599, 24146, 7979, 22 closes https://github.com/official-stockfish/Stockfish/pull/4355 Bench: 4208265
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