Dev Builds » 20200416-1944

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 06:27:37 583429 4016 61 2659 1296 -267.51 ± 6.97 667 1264 77 0 0 -683.55 ± 39.42
ncm-dbt-02 06:27:30 585635 3998 78 2607 1313 -259.08 ± 6.98 633 1266 98 1 1 -632.81 ± 34.82
ncm-dbt-03 06:25:17 586072 4000 56 2608 1336 -262.24 ± 6.85 636 1281 82 1 0 -667.43 ± 38.17
ncm-dbt-04 06:27:53 567459 3986 47 2579 1360 -260.62 ± 6.62 609 1314 70 0 0 -699.09 ± 41.42
ncm-dbt-05 06:26:50 580355 4000 63 2600 1337 -260.05 ± 6.73 619 1300 80 1 0 -671.7 ± 38.66
20000 305 13053 6642 -261.89 ± 3.05 3164 6425 407 3 1 -669.55 ± 16.93

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
451269 ncm-dbt-01 581153 16 0 12 4 -337.67 ± 166.31 4 4 0 0 0 -1199.83 ± 190.04
451268 ncm-dbt-04 566967 486 7 303 176 -245.78 ± 17.78 64 168 11 0 0 -654.09 ± 116.73
451267 ncm-dbt-02 586435 498 13 314 171 -243.23 ± 18.21 67 167 15 0 0 -603.12 ± 95.9
451266 ncm-dbt-03 585337 500 7 335 158 -272.99 ± 20.58 88 152 10 0 0 -676.04 ± 124.55
451265 ncm-dbt-05 580987 500 11 329 160 -261.07 ± 19.92 81 156 13 0 0 -629.41 ± 104.8
451264 ncm-dbt-01 586858 500 8 342 150 -280.42 ± 21.19 93 148 9 0 0 -694.7 ± 134.18
451263 ncm-dbt-04 566296 500 5 339 156 -280.42 ± 20.3 90 154 6 0 0 -766.17 ± 188.02
451262 ncm-dbt-03 585632 500 6 320 174 -256.44 ± 18.53 74 166 10 0 0 -676.04 ± 124.55
451261 ncm-dbt-02 586774 500 7 328 165 -264.59 ± 18.98 79 163 8 0 0 -715.51 ± 146.53
451260 ncm-dbt-05 582736 500 5 318 177 -255.29 ± 17.83 71 171 8 0 0 -715.51 ± 146.53
451259 ncm-dbt-01 585632 500 15 326 159 -253.02 ± 20.18 79 153 18 0 0 -571.09 ± 86.01
451258 ncm-dbt-04 566691 500 4 328 168 -268.16 ± 19.42 82 160 8 0 0 -715.51 ± 146.53
451257 ncm-dbt-03 585379 500 4 327 169 -266.96 ± 19.28 81 161 8 0 0 -715.51 ± 146.53
451256 ncm-dbt-02 587962 500 13 327 160 -256.44 ± 21.82 83 151 14 1 1 -571.11 ± 97.59
451255 ncm-dbt-05 579455 500 10 322 168 -254.15 ± 18.52 73 166 11 0 0 -659.13 ± 116.77
451254 ncm-dbt-01 582945 500 10 326 164 -258.74 ± 19.09 77 162 11 0 0 -659.13 ± 116.77
451253 ncm-dbt-04 567759 500 7 334 159 -271.78 ± 20.15 86 155 9 0 0 -694.7 ± 134.18
451252 ncm-dbt-03 587664 500 8 334 158 -270.57 ± 20.0 85 156 9 0 0 -694.7 ± 134.18
451251 ncm-dbt-02 585548 500 9 326 165 -259.9 ± 19.78 80 157 13 0 0 -629.41 ± 104.8
451250 ncm-dbt-05 581610 500 9 327 164 -261.07 ± 19.92 81 156 13 0 0 -629.41 ± 104.8
451249 ncm-dbt-01 583028 500 6 332 162 -270.57 ± 19.42 83 160 7 0 0 -739.05 ± 163.27
451248 ncm-dbt-04 569629 500 7 310 183 -244.09 ± 17.22 64 175 11 0 0 -659.13 ± 116.77
451247 ncm-dbt-03 587452 500 6 325 169 -262.24 ± 18.98 78 163 9 0 0 -694.7 ± 134.18
451246 ncm-dbt-02 582819 500 6 331 163 -269.36 ± 20.13 85 155 10 0 0 -676.04 ± 124.55
451245 ncm-dbt-05 579661 500 6 325 169 -262.24 ± 18.98 78 163 9 0 0 -694.7 ± 134.18
451244 ncm-dbt-01 582527 500 5 328 167 -266.96 ± 18.69 79 165 6 0 0 -766.17 ± 188.02
451243 ncm-dbt-04 567561 500 6 329 165 -266.96 ± 18.99 80 163 7 0 0 -739.05 ± 163.27
451242 ncm-dbt-03 586943 500 5 322 173 -259.9 ± 18.69 76 165 9 0 0 -694.7 ± 134.18
451241 ncm-dbt-02 584537 500 8 323 169 -257.59 ± 18.68 75 165 10 0 0 -676.04 ± 124.55
451240 ncm-dbt-01 583866 500 7 319 174 -254.15 ± 19.05 75 162 13 0 0 -629.41 ± 104.8
451239 ncm-dbt-05 581070 500 6 324 170 -261.07 ± 17.97 74 170 6 0 0 -766.17 ± 188.02
451238 ncm-dbt-03 585506 500 11 322 167 -253.02 ± 19.93 77 158 14 1 0 -592.29 ± 99.42
451237 ncm-dbt-04 568355 500 7 316 177 -250.76 ± 18.08 70 169 11 0 0 -659.13 ± 116.77
451236 ncm-dbt-01 583782 500 4 344 152 -288.06 ± 21.2 96 148 6 0 0 -766.17 ± 188.02
451235 ncm-dbt-02 585379 500 11 330 159 -262.24 ± 20.33 83 153 14 0 0 -616.18 ± 100.06
451234 ncm-dbt-05 581111 500 8 332 160 -268.16 ± 20.8 86 153 10 1 0 -643.7 ± 122.54
451233 ncm-dbt-03 584664 500 9 323 168 -256.44 ± 19.34 77 160 13 0 0 -629.41 ± 104.8
451232 ncm-dbt-02 585632 500 11 328 161 -259.9 ± 20.04 81 155 14 0 0 -616.18 ± 100.06
451231 ncm-dbt-01 581070 500 6 330 164 -268.16 ± 19.13 81 162 7 0 0 -739.05 ± 163.27
451230 ncm-dbt-04 566414 500 4 320 176 -258.74 ± 17.98 73 170 7 0 0 -739.05 ± 163.27
451229 ncm-dbt-05 576210 500 8 323 169 -257.59 ± 18.68 75 165 10 0 0 -676.04 ± 124.55

Commit

Commit ID 345b2d153a8092cff93ad660c9d107cd66fda43b
Author Joost VandeVondele
Date 2020-04-16 19:44:52 UTC
Remove one condition in probcut TTmove skipping the removed condition appears illogical and is not needed. passed STC: LLR: 2.95 (-2.94,2.94) {-1.50,0.50} Total: 80418 W: 15217 L: 15144 D: 50057 Ptnml(0-2): 1341, 9399, 18679, 9426, 1364 https://tests.stockfishchess.org/tests/view/5e977eb5c9ada107a0370d6b passed LTC: LLR: 2.95 (-2.94,2.94) {-1.50,0.50} Total: 49878 W: 6299 L: 6247 D: 37332 Ptnml(0-2): 327, 4677, 14897, 4693, 345 https://tests.stockfishchess.org/tests/view/5e97e07dc9ada107a0370e53 closes https://github.com/official-stockfish/Stockfish/pull/2638 Bench: 4958027
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