Dev Builds » 20160911-0542

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 06:17:42 583943 4006 10 3064 932 -348.07 ± 9.42 1069 917 16 1 0 -938.19 ± 92.36
ncm-dbt-02 06:17:54 586164 3998 15 3049 934 -345.2 ± 9.28 1052 930 17 0 0 -947.8 ± 89.7
ncm-dbt-03 06:18:12 585596 4000 18 3018 964 -338.04 ± 9.06 1020 961 18 1 0 -919.54 ± 86.25
ncm-dbt-04 06:18:40 568285 3996 19 3061 916 -347.16 ± 9.41 1064 914 20 0 0 -919.35 ± 81.57
ncm-dbt-05 06:17:57 582011 4000 15 3042 943 -343.46 ± 9.21 1044 939 17 0 0 -947.88 ± 89.7
20000 77 15234 4689 -344.36 ± 4.15 5249 4661 88 2 0 -934.1 ± 36.8

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
473346 ncm-dbt-01 583866 6 0 4 2 -278.86 ± 222.92 1 2 0 0 0 -1199.83 ± 276.48
473345 ncm-dbt-02 586985 498 1 376 121 -340.43 ± 25.83 128 119 2 0 0 -957.61 ± 196.92
473344 ncm-dbt-04 568792 496 4 377 115 -339.64 ± 26.96 130 113 5 0 0 -796.78 ± 231.44
473343 ncm-dbt-05 581527 500 2 376 122 -336.45 ± 25.33 126 122 2 0 0 -958.31 ± 196.57
473342 ncm-dbt-03 585337 500 2 379 119 -341.23 ± 25.87 129 119 2 0 0 -958.31 ± 196.57
473341 ncm-dbt-01 585295 500 0 400 100 -381.69 ± 30.01 151 98 1 0 0 -1078.89 ± 154.95
473340 ncm-dbt-04 568395 500 3 375 122 -333.31 ± 25.36 125 122 3 0 0 -887.58 ± 222.18
473339 ncm-dbt-02 589155 500 1 377 122 -339.62 ± 25.3 127 122 1 0 0 -1078.89 ± 154.95
473338 ncm-dbt-03 586181 500 1 372 127 -331.76 ± 24.81 123 125 2 0 0 -958.31 ± 196.57
473337 ncm-dbt-05 582360 500 4 371 125 -325.66 ± 25.21 122 123 5 0 0 -798.18 ± 231.48
473336 ncm-dbt-01 581943 500 1 382 117 -347.76 ± 27.0 134 113 3 0 0 -887.58 ± 222.18
473335 ncm-dbt-04 568832 500 0 402 98 -385.58 ± 29.95 152 98 0 0 0 -1199.83 ± 0.0
473334 ncm-dbt-02 584832 500 1 381 118 -346.11 ± 26.01 131 118 1 0 0 -1078.89 ± 154.95
473333 ncm-dbt-05 580655 500 2 384 114 -349.42 ± 26.79 134 114 2 0 0 -958.31 ± 196.57
473332 ncm-dbt-03 586393 500 2 384 114 -349.42 ± 26.79 134 114 2 0 0 -958.31 ± 196.57
473331 ncm-dbt-01 583950 500 2 379 119 -341.23 ± 26.64 130 118 1 1 0 -887.69 ± 234.86
473330 ncm-dbt-04 568514 500 7 390 103 -351.1 ± 28.96 140 103 7 0 0 -739.05 ± 163.27
473329 ncm-dbt-02 585379 500 1 392 107 -364.97 ± 28.11 142 107 1 0 0 -1078.89 ± 154.95
473328 ncm-dbt-05 586266 500 0 385 115 -354.49 ± 26.51 135 115 0 0 0 -1199.83 ± 0.0
473327 ncm-dbt-03 584159 500 2 368 130 -324.16 ± 23.97 118 130 2 0 0 -958.31 ± 196.57
473326 ncm-dbt-01 585506 500 2 381 117 -344.47 ± 26.23 131 117 2 0 0 -958.31 ± 196.57
473325 ncm-dbt-04 568434 500 0 371 129 -331.76 ± 24.05 121 129 0 0 0 -1199.83 ± 0.0
473324 ncm-dbt-05 580530 500 1 379 120 -342.84 ± 25.65 129 120 1 0 0 -1078.89 ± 154.95
473323 ncm-dbt-02 587409 500 3 381 116 -342.84 ± 26.44 131 116 3 0 0 -887.58 ± 222.18
473322 ncm-dbt-03 587197 500 2 374 124 -333.31 ± 24.99 124 124 2 0 0 -958.31 ± 196.57
473321 ncm-dbt-01 582444 500 1 376 123 -338.03 ± 25.51 127 121 2 0 0 -958.31 ± 196.57
473320 ncm-dbt-04 568434 500 2 384 114 -349.42 ± 26.79 134 114 2 0 0 -958.31 ± 196.57
473319 ncm-dbt-05 580116 500 4 375 121 -331.76 ± 25.56 125 121 4 0 0 -837.28 ± 240.94
473318 ncm-dbt-03 586181 500 3 371 126 -327.17 ± 24.67 121 126 3 0 0 -887.58 ± 222.18
473317 ncm-dbt-01 582569 500 1 379 120 -342.84 ± 26.83 132 114 4 0 0 -837.28 ± 240.94
473316 ncm-dbt-02 584159 500 4 362 134 -312.47 ± 23.36 112 134 4 0 0 -837.28 ± 240.94
473315 ncm-dbt-02 586985 500 3 380 117 -341.23 ± 26.26 130 117 3 0 0 -887.58 ± 222.18
473314 ncm-dbt-04 567363 500 0 385 115 -354.49 ± 26.51 135 115 0 0 0 -1199.83 ± 0.0
473313 ncm-dbt-05 581818 500 1 390 109 -361.42 ± 28.15 141 107 2 0 0 -958.31 ± 196.57
473312 ncm-dbt-03 584916 500 2 384 114 -349.42 ± 26.79 134 114 2 0 0 -958.31 ± 196.57
473311 ncm-dbt-01 584916 500 1 383 116 -349.42 ± 26.37 133 116 1 0 0 -1078.89 ± 154.95
473310 ncm-dbt-02 584411 500 1 400 99 -379.76 ± 30.27 151 97 2 0 0 -958.31 ± 196.57
473309 ncm-dbt-01 585000 500 2 380 118 -342.84 ± 26.05 130 118 2 0 0 -958.31 ± 196.57
473308 ncm-dbt-04 567522 500 3 377 120 -336.45 ± 25.72 127 120 3 0 0 -887.58 ± 222.18
473307 ncm-dbt-05 582819 500 1 382 117 -347.76 ± 26.19 132 117 1 0 0 -1078.89 ± 154.95
473306 ncm-dbt-03 584411 500 4 386 110 -349.43 ± 28.37 137 109 3 1 0 -798.25 ± 263.18

Commit

Commit ID 4c95edddbf1aaec22c343adaca4796df0137e4c3
Author Stefano Cardanobile
Date 2016-09-11 05:42:12 UTC
Reorder evaluation start In evaluate, we start by initializing the pos.psq_score and adding the material imbalance. After that, we check whether a specialized eval exists and if yes we return that value and discard whatever we have computed until now. It sounds more logical to first probe material entry and return if we have a specialized eval, and only if it is not the case initialize eval with some values. There is no measurable speed-difference on my computer. Non functional change.
Copyright 2011–2026 Next Chess Move LLC