Dev Builds » 20200320-2007

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 15. 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 06:26:22 584329 4002 46 2567 1389 -257.56 ± 6.49 591 1340 69 1 0 -697.3 ± 41.73
ncm-dbt-02 06:26:24 585090 4016 67 2583 1366 -255.58 ± 6.57 593 1332 81 2 0 -666.03 ± 38.39
ncm-dbt-03 06:27:32 585922 3988 61 2591 1336 -260.14 ± 6.82 623 1286 83 2 0 -660.66 ± 37.92
ncm-dbt-04 06:26:44 569308 4000 55 2581 1364 -258.46 ± 6.65 606 1316 76 2 0 -676.08 ± 39.67
ncm-dbt-05 06:28:03 583405 3994 48 2607 1339 -263.83 ± 6.66 624 1312 60 1 0 -720.89 ± 44.88
20000 277 12929 6794 -259.1 ± 2.97 3037 6586 369 8 0 -682.85 ± 17.78

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
469250 ncm-dbt-01 585590 2 0 2 0 -1041.08 ± 395.59 1 0 0 0 0 -1129.65 ± 376.02
469249 ncm-dbt-02 584579 16 0 10 6 -254.49 ± 90.13 2 6 0 0 0 -1199.83 ± 190.04
469248 ncm-dbt-05 581818 494 4 321 169 -264.41 ± 18.22 75 167 5 0 0 -796.07 ± 231.42
469247 ncm-dbt-03 583740 488 2 304 182 -251.24 ± 17.29 65 172 7 0 0 -734.77 ± 163.22
469246 ncm-dbt-04 567958 500 7 331 162 -268.16 ± 19.99 84 156 10 0 0 -676.04 ± 124.55
469245 ncm-dbt-01 584411 500 6 318 176 -254.15 ± 17.68 70 172 8 0 0 -715.51 ± 146.53
469244 ncm-dbt-02 585759 500 8 332 160 -268.16 ± 19.99 84 156 10 0 0 -676.04 ± 124.55
469243 ncm-dbt-03 587028 500 9 319 172 -251.89 ± 18.5 72 166 12 0 0 -643.67 ± 110.29
469242 ncm-dbt-04 570949 500 7 307 186 -240.82 ± 17.58 64 172 14 0 0 -616.18 ± 100.06
469241 ncm-dbt-05 585421 500 10 325 165 -257.59 ± 19.22 76 164 9 1 0 -659.17 ± 131.36
469240 ncm-dbt-01 583237 500 6 326 168 -263.41 ± 18.84 78 164 8 0 0 -715.51 ± 146.53
469239 ncm-dbt-02 584874 500 11 315 174 -245.19 ± 18.41 69 166 15 0 0 -603.84 ± 95.91
469238 ncm-dbt-04 569709 500 9 322 169 -255.29 ± 18.11 72 169 9 0 0 -694.7 ± 134.18
469237 ncm-dbt-03 587325 500 10 325 165 -257.59 ± 20.01 79 158 12 1 0 -616.2 ± 109.19
469236 ncm-dbt-05 579496 500 6 331 163 -269.36 ± 19.57 83 159 8 0 0 -715.51 ± 146.53
469235 ncm-dbt-01 585928 500 4 309 187 -246.3 ± 16.96 63 180 6 1 0 -715.55 ± 177.2
469234 ncm-dbt-02 582945 500 9 331 160 -265.77 ± 19.41 81 160 9 0 0 -694.7 ± 134.18
469233 ncm-dbt-01 585000 500 5 317 178 -254.15 ± 18.24 72 168 10 0 0 -676.04 ± 124.55
469232 ncm-dbt-04 568077 500 6 318 176 -254.15 ± 17.97 71 170 9 0 0 -694.7 ± 134.18
469231 ncm-dbt-05 584453 500 8 332 160 -268.16 ± 20.26 85 154 11 0 0 -659.13 ± 116.77
469230 ncm-dbt-03 585590 500 10 320 170 -251.89 ± 18.5 72 166 12 0 0 -643.67 ± 110.29
469229 ncm-dbt-02 581277 500 6 325 169 -262.24 ± 18.7 77 165 8 0 0 -715.51 ± 146.53
469228 ncm-dbt-01 583656 500 6 324 170 -261.07 ± 18.26 75 168 7 0 0 -739.05 ± 163.27
469227 ncm-dbt-03 587240 500 6 329 165 -266.96 ± 19.28 81 161 8 0 0 -715.51 ± 146.53
469226 ncm-dbt-04 571511 500 9 323 168 -256.44 ± 19.07 75 165 9 1 0 -659.17 ± 131.36
469225 ncm-dbt-02 585000 500 9 322 169 -255.29 ± 18.66 74 165 11 0 0 -659.13 ± 116.77
469224 ncm-dbt-05 584495 500 4 320 176 -258.74 ± 17.68 72 172 6 0 0 -766.17 ± 188.02
469223 ncm-dbt-01 584369 500 11 316 173 -246.3 ± 18.04 68 169 13 0 0 -629.41 ± 104.8
469222 ncm-dbt-05 585126 500 6 324 170 -261.07 ± 18.26 75 168 7 0 0 -739.05 ± 163.27
469221 ncm-dbt-03 586266 500 9 335 156 -270.57 ± 20.56 87 152 11 0 0 -659.13 ± 116.77
469220 ncm-dbt-02 585970 500 10 323 167 -255.3 ± 19.19 75 164 10 1 0 -643.7 ± 122.54
469219 ncm-dbt-04 569789 500 6 316 178 -251.89 ± 18.23 70 171 8 1 0 -676.08 ± 142.43
469218 ncm-dbt-01 584622 500 1 324 175 -266.96 ± 18.69 79 165 6 0 0 -766.17 ± 188.02
469217 ncm-dbt-02 587622 500 8 315 177 -248.52 ± 17.25 66 175 9 0 0 -694.7 ± 134.18
469216 ncm-dbt-05 582402 500 5 327 168 -265.77 ± 18.55 78 166 6 0 0 -766.17 ± 188.02
469215 ncm-dbt-03 587792 500 6 320 174 -256.44 ± 19.07 75 165 9 1 0 -659.17 ± 131.36
469214 ncm-dbt-04 567799 500 2 327 171 -269.36 ± 19.28 82 161 7 0 0 -739.05 ± 163.27
469213 ncm-dbt-02 587792 500 6 310 184 -245.2 ± 17.63 65 175 9 1 0 -659.17 ± 131.36
469212 ncm-dbt-01 582152 500 7 331 162 -268.16 ± 20.26 85 154 11 0 0 -659.13 ± 116.77
469211 ncm-dbt-03 582402 500 9 339 152 -275.44 ± 21.43 92 146 12 0 0 -643.67 ± 110.29
469210 ncm-dbt-04 568673 500 9 337 154 -272.99 ± 20.58 88 152 10 0 0 -676.04 ± 124.55
469209 ncm-dbt-05 584034 500 5 327 168 -265.77 ± 19.13 80 162 8 0 0 -715.51 ± 146.53

Commit

Commit ID 6ecab03dee15fe30bc0237919180a2e51e0ce4b1
Author Vizvezdenec
Date 2020-03-20 20:07:37 UTC
Adjust singular extension search depth This patch applies a different singular extension search logic in case the position is ttPv && !PvNode. It changes the depth of this search, higher for this types of nodes, and lower for other nodes. passed STC http://tests.stockfishchess.org/tests/view/5e72bbaae42a5c3b3ca2e75e LLR: 2.94 (-2.94,2.94) {-0.50,1.50} Total: 12692 W: 2608 L: 2389 D: 7695 Ptnml(0-2): 238, 1414, 2839, 1601, 254 passed LTC http://tests.stockfishchess.org/tests/view/5e731c07e42a5c3b3ca2e770 LLR: 2.96 (-2.94,2.94) {0.25,1.75} Total: 145716 W: 19218 L: 18626 D: 107872 Ptnml(0-2): 1100, 13605, 42899, 14111, 1143 closes https://github.com/official-stockfish/Stockfish/pull/2590 Bench: 5398277
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