Dev Builds » 20200521-1205

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 13:49:03 1138093 4946 313 2895 1738 -201.21 ± 6.12 552 1505 389 27 0 -402.84 ± 17.3
ncm-dbt-02 13:44:26 1257194 4906 263 2856 1787 -204.33 ± 6.01 539 1537 355 22 0 -421.17 ± 18.11
ncm-dbt-03 13:50:37 1266676 4922 273 2856 1793 -202.53 ± 6.08 545 1518 374 23 1 -411.16 ± 17.64
ncm-dbt-04 00:29:14 1477597 168 7 98 63 -210.71 ± 32.85 19 54 10 1 0 -445.58 ± 120.78
ncm-dbt-05 13:44:43 1250567 4888 261 2846 1781 -204.48 ± 6.26 565 1486 364 27 2 -409.84 ± 17.87
ncm-dbt-06 00:29:17 1488824 170 12 98 60 -193.57 ± 29.11 15 56 14 0 0 -418.77 ± 98.04
20000 1129 11649 7222 -203.11 ± 3.03 2235 6156 1506 100 3 -411.46 ± 8.77

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
211238 ncm-dbt-05 1212185 218 12 122 84 -192.97 ± 29.46 22 69 15 3 0 -388.9 ± 91.87
211237 ncm-dbt-02 1240917 242 7 143 92 -220.86 ± 24.46 26 84 11 0 0 -528.86 ± 115.47
211236 ncm-dbt-03 1242003 258 10 156 92 -222.85 ± 24.88 30 86 13 0 0 -510.06 ± 103.8
211235 ncm-dbt-01 1102343 282 25 169 88 -195.81 ± 26.41 32 82 25 2 0 -376.29 ± 70.77
211234 ncm-dbt-05 1236759 500 25 298 177 -212.86 ± 21.03 67 143 36 4 0 -406.2 ± 58.04
211233 ncm-dbt-02 1235771 500 26 277 197 -191.77 ± 17.77 45 164 38 3 0 -406.2 ± 56.64
211232 ncm-dbt-03 1237527 500 23 286 191 -203.11 ± 18.51 52 161 36 0 1 -433.94 ± 58.41
211231 ncm-dbt-01 1111334 500 28 293 179 -205.03 ± 20.27 61 147 38 4 0 -397.72 ± 56.46
211230 ncm-dbt-05 1226909 500 32 290 178 -198.34 ± 19.12 56 147 46 1 0 -389.56 ± 51.18
211229 ncm-dbt-02 1247356 500 29 295 176 -206.0 ± 18.55 56 154 40 0 0 -424.27 ± 55.03
211228 ncm-dbt-03 1255171 500 27 289 184 -202.15 ± 18.56 54 155 40 1 0 -415.05 ± 55.18
211227 ncm-dbt-01 1093360 500 33 289 178 -196.45 ± 18.29 50 158 40 2 0 -406.2 ± 55.21
211226 ncm-dbt-05 1239031 500 22 291 187 -208.92 ± 18.77 55 161 33 0 1 -449.35 ± 61.23
211225 ncm-dbt-02 1236415 500 31 290 179 -199.29 ± 18.9 53 156 38 3 0 -406.2 ± 56.64
211224 ncm-dbt-03 1248652 500 28 286 186 -198.34 ± 18.38 50 161 36 3 0 -415.05 ± 58.26
211223 ncm-dbt-01 1089886 500 24 295 181 -210.88 ± 19.25 59 155 34 2 0 -433.94 ± 60.2
211222 ncm-dbt-05 1228811 500 36 302 162 -206.0 ± 20.94 66 137 44 3 0 -381.7 ± 52.45
211221 ncm-dbt-03 1230853 500 23 288 189 -205.03 ± 18.98 55 158 34 3 0 -424.28 ± 60.03
211220 ncm-dbt-02 1236780 500 26 282 192 -196.45 ± 18.29 50 158 40 2 0 -406.2 ± 55.21
211219 ncm-dbt-01 1113967 500 31 299 170 -207.94 ± 18.83 58 152 40 0 0 -424.27 ± 55.03
211218 ncm-dbt-05 1217622 500 23 282 195 -199.29 ± 18.14 51 158 40 1 0 -415.05 ± 55.18
211217 ncm-dbt-03 1237878 500 35 292 173 -197.39 ± 19.16 55 149 44 2 0 -389.56 ± 52.48
211216 ncm-dbt-02 1241725 500 24 293 183 -208.92 ± 17.97 54 161 35 0 0 -449.34 ± 59.17
211215 ncm-dbt-01 1103124 500 35 293 172 -198.34 ± 19.84 57 148 41 4 0 -385.59 ± 54.3
211214 ncm-dbt-05 1225235 500 26 283 191 -197.39 ± 18.43 49 163 34 4 0 -415.05 ± 59.75
211213 ncm-dbt-03 1245188 500 39 284 177 -186.24 ± 19.08 50 149 47 4 0 -363.2 ± 50.62
211212 ncm-dbt-02 1224931 500 24 296 180 -211.87 ± 19.19 58 159 30 3 0 -444.09 ± 64.08
211211 ncm-dbt-01 1116905 500 29 296 175 -206.97 ± 19.26 58 153 37 2 0 -419.61 ± 57.55
211210 ncm-dbt-05 1227101 500 20 291 189 -210.89 ± 20.57 62 152 32 3 1 -424.28 ± 61.62
211209 ncm-dbt-02 1225017 500 38 292 170 -194.57 ± 20.31 57 146 41 6 0 -370.41 ± 53.9
211208 ncm-dbt-01 1099171 500 26 297 177 -210.88 ± 20.38 61 155 28 6 0 -424.28 ± 64.73
211207 ncm-dbt-03 1243158 500 21 281 198 -200.24 ± 18.47 52 158 38 2 0 -415.05 ± 56.74
211206 ncm-dbt-05 1230687 500 31 292 177 -201.19 ± 19.17 55 154 38 3 0 -406.2 ± 56.64
211205 ncm-dbt-02 1223415 500 26 291 183 -205.03 ± 18.6 55 156 38 1 0 -424.28 ± 56.73
211204 ncm-dbt-03 1249368 500 27 307 166 -219.87 ± 20.71 69 144 35 2 0 -429.05 ± 59.28
211203 ncm-dbt-01 1119328 500 31 293 176 -202.15 ± 18.56 53 158 37 2 0 -419.61 ± 57.55
211202 ncm-dbt-01 1086365 500 38 275 187 -179.0 ± 17.97 44 151 53 2 0 -356.21 ± 47.52
211201 ncm-dbt-05 1222205 500 26 297 177 -210.88 ± 19.82 62 149 37 2 0 -419.61 ± 57.55
211200 ncm-dbt-02 1230079 500 23 301 176 -217.85 ± 20.81 67 148 31 4 0 -429.05 ± 62.62
211199 ncm-dbt-03 1241768 500 29 299 172 -209.9 ± 20.43 63 148 35 4 0 -410.58 ± 58.88
178210 ncm-dbt-02 1486738 164 9 96 59 -205.26 ± 32.19 18 51 13 0 0 -425.99 ± 102.57
178209 ncm-dbt-06 1488824 170 12 98 60 -193.57 ± 29.11 15 56 14 0 0 -418.77 ± 98.04
178208 ncm-dbt-05 1489696 170 8 98 64 -204.74 ± 35.74 20 53 9 3 0 -405.7 ± 119.3
178207 ncm-dbt-04 1477597 168 7 98 63 -210.71 ± 32.85 19 54 10 1 0 -445.58 ± 120.78
178206 ncm-dbt-01 1483243 164 13 96 55 -193.68 ± 35.07 19 46 16 1 0 -363.63 ± 90.57
178205 ncm-dbt-03 1501877 164 11 88 65 -176.99 ± 33.3 15 49 16 2 0 -342.93 ± 89.93

Commit

Commit ID 6c1af710d16c6a358cc09c51a133120605c39e44
Author Stéphane Nicolet
Date 2020-05-21 12:05:07 UTC
A combo of parameters tweaks This patch is a combinaison of two recent parameters tweaks which had failed narrowly (yellow) at long time control: • improvement in move ordering during search by softening the distinction between bad captures and good captures during move generation, leading to improved awareness of Stockfish of potential piece sacrifices (idea by Rahul Dsilva) • increase in the weight of pawns in the "initiative" part of the evaluation function. With this change Stockfish should have more incentive to exchange pawns when losing, and to keep pawns when winning. STC: LLR: 2.93 (-2.94,2.94) {-0.50,1.50} Total: 10704 W: 2178 L: 1974 D: 6552 Ptnml(0-2): 168, 1185, 2464, 1345, 190 https://tests.stockfishchess.org/tests/view/5ec5553b377121ac09e1023d LTC: LLR: 2.94 (-2.94,2.94) {0.25,1.75} Total: 60592 W: 7835 L: 7494 D: 45263 Ptnml(0-2): 430, 5514, 18086, 5817, 449 https://tests.stockfishchess.org/tests/view/5ec55ca2377121ac09e10249 Closes https://github.com/official-stockfish/Stockfish/pull/2691 Bench: 4519117
Copyright 2011–2024 Next Chess Move LLC