Dev Builds » 20230128-1550

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 05:00:52 1119072 1668 717 170 781 +118.31 +/- 7.69 0 23 265 522 24 +255.93 +/- 20.95
ncm-dbt-02 04:58:48 1231065 1674 712 157 805 +119.71 +/- 7.5 1 24 245 553 14 +267.9 +/- 21.82
ncm-dbt-03 05:00:39 1231677 1668 679 159 830 +112.04 +/- 7.67 1 25 279 511 18 +242.52 +/- 20.41
ncm-dbt-04 05:00:43 1230096 1662 673 175 814 +107.4 +/- 7.71 1 26 296 490 18 +229.55 +/- 19.78
ncm-dbt-05 04:58:56 1230737 1660 671 165 824 +109.38 +/- 7.48 0 26 284 508 12 +238.22 +/- 20.21
ncm-dbt-06 05:00:57 1235431 1668 679 181 808 +106.99 +/- 7.59 0 28 295 496 15 +229.71 +/- 19.83
ncm-et-3 06:22:37 1307081 1672 702 170 800 +114.52 +/- 8.02 1 37 247 531 20 +248.32 +/- 21.69
ncm-et-4 06:22:57 1306022 1676 696 164 816 +114.23 +/- 7.83 0 32 263 522 21 +246.19 +/- 21.05
ncm-et-9 06:23:37 1300133 1666 673 165 828 +109.42 +/- 7.7 1 27 285 503 17 +235.78 +/- 20.19
ncm-et-10 06:23:36 1290662 1658 689 170 799 +112.53 +/- 7.94 0 34 263 511 21 +241.22 +/- 21.05
ncm-et-13 06:23:00 1313321 1660 688 186 786 +108.46 +/- 8.01 1 33 281 493 22 +229.91 +/- 20.35
ncm-et-15 06:23:10 1299282 1668 665 174 829 +105.39 +/- 8.0 0 42 276 499 17 +224.12 +/- 20.54
20000 8244 2036 9720 +111.52 +/- 2.24 6 357 3279 6139 219 +240.55 +/- 5.95

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
189817 ncm-dbt-01 1125202 168 74 22 72 +111.18 +/- 25.34 0 2 32 46 4 +225.71 +/- 60.88
189816 ncm-dbt-04 1226069 162 71 14 77 +127.7 +/- 21.97 0 1 23 56 1 +295.51 +/- 73.28
189815 ncm-dbt-05 1224019 160 66 15 79 +114.74 +/- 23.49 0 1 29 48 2 +247.69 +/- 63.91
189814 ncm-dbt-06 1250379 168 69 20 79 +104.36 +/- 21.93 0 1 34 48 1 +225.71 +/- 58.25
189813 ncm-dbt-03 1236007 168 70 22 76 +102.1 +/- 25.25 0 4 30 48 2 +213.66 +/- 63.47
189812 ncm-dbt-02 1225075 174 76 8 90 +143.4 +/- 23.08 0 2 18 64 3 +335.77 +/- 84.3
189811 ncm-dbt-04 1224687 500 205 57 238 +106.01 +/- 13.88 0 6 97 140 7 +221.9 +/- 34.46
189810 ncm-dbt-01 1115653 500 213 48 239 +119.11 +/- 12.99 0 8 69 173 0 +275.45 +/- 41.43
189809 ncm-dbt-05 1235111 500 205 44 251 +116.0 +/- 13.54 0 7 79 160 4 +256.44 +/- 38.62
189808 ncm-dbt-06 1230331 500 210 59 231 +108.3 +/- 14.37 0 11 82 152 5 +232.26 +/- 37.9
189807 ncm-dbt-02 1241271 500 223 50 227 +125.38 +/- 13.25 0 4 75 165 6 +280.42 +/- 39.57
189806 ncm-dbt-03 1224784 500 200 51 249 +106.77 +/- 13.23 0 7 89 152 2 +234.38 +/- 36.22
189805 ncm-dbt-01 1125364 500 217 53 230 +118.33 +/- 14.52 0 7 82 151 10 +249.64 +/- 37.86
189804 ncm-dbt-05 1230295 500 199 56 245 +102.22 +/- 13.21 0 9 89 152 0 +226.0 +/- 36.29
189803 ncm-dbt-04 1249269 500 189 55 256 +95.44 +/- 13.63 0 10 98 140 2 +204.07 +/- 34.47
189802 ncm-dbt-02 1224020 500 212 51 237 +116.0 +/- 14.05 0 10 73 163 4 +256.44 +/- 40.21
189801 ncm-dbt-06 1248816 500 204 53 243 +108.3 +/- 14.37 0 10 85 149 6 +230.16 +/- 37.2
189800 ncm-dbt-03 1243082 500 209 46 245 +117.55 +/- 14.37 0 8 79 155 8 +251.89 +/- 38.63
189799 ncm-dbt-04 1220362 500 208 49 243 +114.45 +/- 15.0 1 9 78 154 8 +245.2 +/- 38.89
189798 ncm-dbt-02 1233894 500 201 48 251 +109.83 +/- 13.73 1 8 79 161 1 +247.41 +/- 38.64
189797 ncm-dbt-05 1233524 500 201 50 249 +108.3 +/- 14.21 0 9 87 148 6 +230.16 +/- 36.73
189796 ncm-dbt-03 1222835 500 200 40 260 +115.23 +/- 14.21 1 6 81 156 6 +251.89 +/- 38.11
189795 ncm-dbt-01 1110069 500 213 47 240 +119.89 +/- 14.35 0 6 82 152 10 +254.16 +/- 37.82
189794 ncm-dbt-06 1212201 500 196 49 255 +105.25 +/- 13.22 0 6 94 147 3 +228.08 +/- 35.08
166184 ncm-et-10 1288750 158 68 15 75 +121.23 +/- 24.55 0 2 24 51 2 +266.71 +/- 71.67
166183 ncm-et-13 1308182 160 63 18 79 +100.42 +/- 26.89 0 6 24 49 1 +214.85 +/- 70.64
166182 ncm-et-9 1292126 166 67 22 77 +96.59 +/- 25.34 0 4 32 45 2 +199.32 +/- 61.23
166181 ncm-et-15 1305055 168 69 18 81 +108.9 +/- 27.61 0 7 21 54 2 +231.91 +/- 74.32
166180 ncm-et-4 1306634 176 77 17 82 +123.38 +/- 26.74 0 4 25 54 5 +254.73 +/- 69.94
166179 ncm-et-3 1306562 172 69 20 83 +101.79 +/- 25.58 0 6 26 53 1 +218.93 +/- 67.92
166178 ncm-et-15 1299394 500 193 53 254 +99.95 +/- 14.76 0 17 78 153 2 +215.85 +/- 38.65
166177 ncm-et-10 1291912 500 203 49 248 +110.6 +/- 14.38 0 13 73 161 3 +243.0 +/- 40.09
166176 ncm-et-13 1314312 500 213 60 227 +109.83 +/- 14.84 1 8 86 147 8 +232.26 +/- 36.96
166175 ncm-et-4 1308802 500 202 47 251 +111.37 +/- 14.06 0 9 82 154 5 +240.82 +/- 37.9
166174 ncm-et-3 1300010 500 219 55 226 +118.33 +/- 14.68 0 7 83 149 11 +247.41 +/- 37.61
166173 ncm-et-9 1295804 500 202 42 256 +115.22 +/- 13.88 0 7 82 155 6 +249.64 +/- 37.86
166172 ncm-et-10 1285181 500 215 51 234 +118.33 +/- 14.2 0 6 83 152 9 +251.89 +/- 37.57
166171 ncm-et-15 1294220 500 196 50 254 +104.49 +/- 13.71 0 8 92 146 4 +223.94 +/- 35.61
166170 ncm-et-9 1309762 500 203 52 245 +108.3 +/- 14.98 1 10 83 149 7 +230.16 +/- 37.67
166169 ncm-et-4 1311356 500 210 50 240 +115.22 +/- 14.37 0 9 79 155 7 +247.41 +/- 38.64
166168 ncm-et-13 1311961 500 205 49 246 +112.14 +/- 14.38 0 8 86 148 8 +236.51 +/- 36.93
166167 ncm-et-3 1306454 500 209 47 244 +116.77 +/- 14.21 0 11 70 165 4 +258.75 +/- 41.02
166166 ncm-et-3 1315299 500 205 48 247 +112.91 +/- 15.0 1 13 68 164 4 +249.64 +/- 41.39
166165 ncm-et-13 1318832 500 207 59 234 +106.01 +/- 14.36 0 11 85 149 5 +226.0 +/- 37.21
166164 ncm-et-15 1298461 500 207 53 240 +110.6 +/- 14.84 0 10 85 146 9 +230.16 +/- 37.2
166163 ncm-et-9 1302843 500 201 49 250 +109.07 +/- 13.05 0 6 88 154 2 +240.82 +/- 36.39
166162 ncm-et-10 1296806 500 203 55 242 +106.01 +/- 14.97 0 13 83 147 7 +221.9 +/- 37.65
166161 ncm-et-4 1297296 500 207 50 243 +112.91 +/- 14.05 0 10 77 159 4 +247.41 +/- 39.15

Commit

Commit ID d4d1cec29631f041adeec98adc5893b5c6a54969
Author Dubslow
Date 2023-01-28 15:50:46 UTC
Remove `previousDepth` in favor of `completedDepth + 2` Beyond the simplification, this could be considered a bugfix from a certain point of view. However, the effect is very subtle and essentially impossible for users to notice. 5372f81cc8 added about 2 Elo at LTC, but only for second and later `go` commands; now, with this patch, the first `go` command will also benefit from that gain. Games under time controls are unaffected (as per the tests). STC: https://tests.stockfishchess.org/tests/view/63c3d291330c0d3d051d48a8 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 473792 W: 124858 L: 125104 D: 223830 Ptnml(0-2): 1338, 49653, 135063, 49601, 1241 LTC: https://tests.stockfishchess.org/tests/view/63c8cd56a83c702aac083bc9 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 290728 W: 76926 L: 76978 D: 136824 Ptnml(0-2): 106, 27987, 89221, 27953, 97 closes https://github.com/official-stockfish/Stockfish/pull/4361 bench 4208265
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