Dev Builds » 20230314-0722

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 00:32:11 1489070 168 73 12 83 +132.17 +/- 23.26 0 2 21 59 2 +302.96 +/- 77.35
ncm-dbt-02 10:26:11 1253772 3470 1429 381 1660 +108.31 +/- 5.42 1 64 597 1032 41 +230.68 +/- 13.94
ncm-dbt-03 10:26:43 1193708 3462 1394 310 1758 +112.57 +/- 5.19 0 55 563 1087 26 +246.97 +/- 14.36
ncm-dbt-04 10:23:56 1213445 3466 1470 352 1644 +116.22 +/- 5.36 3 51 544 1095 40 +254.03 +/- 14.61
ncm-dbt-05 10:26:04 1196861 3474 1434 324 1716 +115.04 +/- 5.25 0 50 566 1082 39 +249.97 +/- 14.31
ncm-dbt-06 10:23:08 1185426 3460 1481 348 1631 +118.12 +/- 5.38 1 58 519 1111 41 +258.63 +/- 14.97
ncm-dbt-07 07:28:23 1181021 2500 1039 248 1213 +113.83 +/- 6.28 3 37 400 786 24 +249.64 +/- 17.04
20000 8320 1975 9705 +114.16 +/- 2.22 8 317 3210 6252 213 +248.53 +/- 6.01

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
180485 ncm-dbt-04 1137936 302 133 39 130 +111.85 +/- 17.58 0 4 52 92 3 +242.27 +/- 47.68
180484 ncm-dbt-02 1215386 304 130 42 132 +103.53 +/- 19.44 0 7 56 83 6 +209.65 +/- 45.96
180483 ncm-dbt-03 770192 314 130 27 157 +118.34 +/- 17.1 0 5 46 104 2 +265.37 +/- 51.01
180482 ncm-dbt-05 793215 314 127 30 157 +110.95 +/- 16.11 0 3 55 98 1 +247.12 +/- 46.15
180481 ncm-dbt-06 749926 318 136 32 150 +117.96 +/- 17.64 0 5 49 101 4 +256.98 +/- 49.35
180480 ncm-dbt-03 1198845 478 191 43 244 +111.22 +/- 13.96 0 8 78 150 3 +244.48 +/- 38.87
180479 ncm-dbt-04 1194349 500 211 47 242 +118.33 +/- 13.52 0 6 79 160 5 +261.07 +/- 38.58
180478 ncm-dbt-06 1212960 482 204 49 229 +115.83 +/- 13.87 0 7 76 154 4 +255.62 +/- 39.39
180477 ncm-dbt-05 1189085 488 204 59 225 +106.44 +/- 14.92 0 11 84 142 7 +222.7 +/- 37.43
180476 ncm-dbt-02 1214758 500 205 50 245 +111.37 +/- 13.39 0 5 90 150 5 +240.82 +/- 35.87
180218 ncm-dbt-03 1235744 500 195 43 262 +109.07 +/- 13.23 0 6 89 152 3 +238.66 +/- 36.16
180217 ncm-dbt-02 1224926 500 195 54 251 +100.7 +/- 14.16 0 12 88 147 3 +215.85 +/- 36.55
180216 ncm-dbt-04 1167360 500 220 59 221 +116.0 +/- 14.21 1 6 80 157 6 +254.16 +/- 38.36
180215 ncm-dbt-05 1246333 500 207 49 244 +113.68 +/- 13.89 0 7 84 153 6 +245.2 +/- 37.37
180214 ncm-dbt-07 1183395 500 194 46 260 +106.01 +/- 13.72 0 9 87 151 3 +230.16 +/- 36.73
180213 ncm-dbt-06 1193979 500 216 53 231 +117.55 +/- 14.36 1 8 73 163 5 +261.07 +/- 40.24
180212 ncm-dbt-03 1228180 500 204 35 261 +122.24 +/- 13.66 0 7 72 166 5 +273.0 +/- 40.54
180211 ncm-dbt-02 1232202 500 218 45 237 +125.38 +/- 13.43 0 6 70 169 5 +282.94 +/- 41.13
180210 ncm-dbt-04 1191036 500 212 46 242 +119.89 +/- 15.3 2 8 70 162 8 +263.42 +/- 41.06
180209 ncm-dbt-05 1205950 500 210 40 250 +123.02 +/- 14.16 0 8 71 164 7 +270.57 +/- 40.83
180208 ncm-dbt-06 1204016 500 213 53 234 +115.22 +/- 13.72 0 8 78 160 4 +254.16 +/- 38.89
180207 ncm-dbt-07 1174077 500 216 48 236 +121.45 +/- 13.84 0 6 77 160 7 +265.78 +/- 39.12
180206 ncm-dbt-04 1178444 500 211 50 239 +116.0 +/- 14.69 0 9 80 152 9 +245.2 +/- 38.39
180205 ncm-dbt-02 1243219 500 195 58 247 +97.69 +/- 13.97 0 11 94 142 3 +207.95 +/- 35.29
180204 ncm-dbt-03 1213858 500 205 42 253 +117.55 +/- 13.53 0 5 83 156 6 +256.44 +/- 37.51
180203 ncm-dbt-05 1232063 500 200 40 260 +115.22 +/- 13.2 0 5 84 157 4 +254.16 +/- 37.27
180202 ncm-dbt-07 1173953 500 218 56 226 +116.78 +/- 13.54 1 5 78 163 3 +263.42 +/- 38.85
180201 ncm-dbt-06 1207525 500 214 41 245 +125.38 +/- 13.79 0 7 69 168 6 +280.42 +/- 41.44
180200 ncm-dbt-04 1176028 500 197 52 251 +103.73 +/- 13.55 0 8 92 147 3 +223.94 +/- 35.61
180199 ncm-dbt-03 1205226 500 204 54 242 +107.54 +/- 13.89 0 10 83 154 3 +234.38 +/- 37.67
180198 ncm-dbt-02 1209181 500 208 58 234 +107.54 +/- 15.28 1 10 86 144 9 +223.94 +/- 36.98
180197 ncm-dbt-05 1189474 500 199 40 261 +114.45 +/- 14.38 0 10 77 157 6 +247.41 +/- 39.15
180196 ncm-dbt-06 1234926 500 219 57 224 +116.77 +/- 14.53 0 12 69 164 5 +256.44 +/- 41.25
180195 ncm-dbt-07 1184535 500 202 48 250 +110.6 +/- 14.69 1 9 81 153 6 +238.66 +/- 38.15
180194 ncm-dbt-04 1173637 500 219 45 236 +126.17 +/- 13.24 0 7 65 175 3 +290.66 +/- 42.73
180193 ncm-dbt-03 1204323 500 193 48 259 +103.73 +/- 14.34 0 12 85 149 4 +221.9 +/- 37.21
180192 ncm-dbt-02 1194195 500 212 54 234 +113.68 +/- 14.54 0 9 82 151 8 +240.82 +/- 37.9
180191 ncm-dbt-06 1193498 500 213 46 241 +120.67 +/- 14.99 0 10 73 157 10 +256.44 +/- 40.21
180190 ncm-dbt-07 1189145 500 209 50 241 +114.45 +/- 14.37 1 8 77 159 5 +251.89 +/- 39.16
180189 ncm-dbt-05 1221297 500 218 54 228 +118.33 +/- 13.52 0 5 82 157 6 +258.75 +/- 37.76
177934 ncm-dbt-02 1496311 166 66 20 80 +98.86 +/- 25.39 0 4 31 46 2 +205.1 +/- 62.32
177933 ncm-dbt-04 1488775 164 67 14 83 +116.45 +/- 25.77 0 3 26 50 3 +246.17 +/- 68.62
177932 ncm-dbt-03 1493302 170 72 18 80 +114.31 +/- 21.73 0 2 27 56 0 +260.66 +/- 67.2
177931 ncm-dbt-06 1486585 160 66 17 77 +109.92 +/- 24.45 0 1 32 44 3 +227.56 +/- 60.21
177930 ncm-dbt-01 1489070 168 73 12 83 +132.17 +/- 23.26 0 2 21 59 2 +302.96 +/- 77.35
177929 ncm-dbt-05 1497473 172 69 12 91 +119.65 +/- 22.38 0 1 29 54 2 +263.14 +/- 64.18

Commit

Commit ID 78532af9dc585a81730d5d28763cc9d5273f96d1
Author Michael Chaly
Date 2023-03-14 07:22:40 UTC
Do more singular extensions This patch continues trend of last VLTC tuning - as measured by dubslow most of it gains was in lowering marging in calculation of singularBeta. This patch is a manual adjustment on top of it - it lowers multiplier of depth in calculation of singularBeta even further, from 2/3 to 1,5/2,5. Was negative at STC: https://tests.stockfishchess.org/tests/view/64089c632644b62c3393fc12 Elo: -2.49 +-1.7 (95%) LOS: 0.2% Total: 40000 W: 10601 L: 10888 D: 18511 Ptnml(0-2): 123, 4580, 10875, 4305, 117 nElo: -5.03 +-3.4 (95%) PairsRatio: 0.94 Passed 180+1.8 SPRT: https://tests.stockfishchess.org/tests/view/640096dae74a12625bcf3b33 LLR: 2.95 (-2.94,2.94) <0.00,2.00> Total: 160952 W: 43753 L: 43342 D: 73857 Ptnml(0-2): 25, 13984, 52039, 14411, 17 Passed 60+0.6 8 threads SPRT: https://tests.stockfishchess.org/tests/view/640dca8e65775d3b539cb7f6 LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 38824 W: 10825 L: 10554 D: 17445 Ptnml(0-2): 0, 2939, 13268, 3200, 5 closes https://github.com/official-stockfish/Stockfish/pull/4443 bench 4776866
Copyright 2011–2024 Next Chess Move LLC