Dev Builds » 20250205-1756

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 06:48:07 584969 4000 1570 506 1924 +94.7 ± 4.98 2 91 771 1113 23 +200.96 ± 12.25
ncm-dbt-02 06:49:26 585879 3988 1561 504 1923 +94.34 ± 4.88 2 83 780 1114 15 +201.95 ± 12.16
ncm-dbt-03 06:47:46 585639 4000 1588 548 1864 +92.46 ± 4.89 3 86 793 1104 14 +197.63 ± 12.06
ncm-dbt-04 06:48:24 570946 4020 1580 482 1958 +97.37 ± 4.81 2 74 774 1144 16 +209.56 ± 12.2
ncm-dbt-05 06:49:34 585162 3992 1592 527 1873 +94.99 ± 5.0 4 89 762 1120 21 +202.65 ± 12.33
20000 7891 2567 9542 +94.77 ± 2.2 13 423 3880 5595 89 +202.53 ± 5.45

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
398775 ncm-dbt-04 570469 20 7 2 11 +88.69 ± 95.39 0 1 4 4 1 +147.19 ± 198.29
398774 ncm-dbt-02 587409 488 182 55 251 +92.55 ± 13.96 0 10 100 131 3 +194.67 ± 34.05
398773 ncm-dbt-05 579744 492 193 66 233 +91.76 ± 13.88 0 11 99 134 2 +194.64 ± 34.29
398772 ncm-dbt-01 584243 500 195 56 249 +99.2 ± 14.45 0 12 92 141 5 +207.95 ± 35.71
398771 ncm-dbt-03 586858 500 192 68 240 +88.0 ± 13.66 0 12 103 134 1 +187.16 ± 33.6
398770 ncm-dbt-04 569989 500 190 52 258 +98.44 ± 13.51 0 9 96 143 2 +211.87 ± 34.83
398769 ncm-dbt-02 587877 500 206 55 239 +108.3 ± 13.23 0 7 87 154 2 +238.66 ± 36.67
398768 ncm-dbt-03 586435 500 204 71 225 +94.69 ± 12.64 0 5 108 136 1 +204.07 ± 32.28
398767 ncm-dbt-01 585632 500 196 63 241 +94.7 ± 14.39 1 12 92 143 2 +204.07 ± 35.72
398766 ncm-dbt-05 583908 500 195 66 239 +91.71 ± 14.04 2 8 100 139 1 +200.24 ± 34.09
398765 ncm-dbt-04 569749 500 200 72 228 +90.97 ± 13.4 0 11 100 139 0 +196.45 ± 34.12
398764 ncm-dbt-02 584916 500 193 59 248 +95.44 ± 13.79 0 11 96 141 2 +204.07 ± 34.89
398763 ncm-dbt-01 584034 500 192 71 237 +85.78 ± 14.22 1 12 104 131 2 +181.7 ± 33.45
398762 ncm-dbt-03 585000 500 196 72 232 +88.0 ± 14.41 1 15 93 141 0 +190.85 ± 35.52
398761 ncm-dbt-05 586266 500 205 64 231 +100.71 ± 14.01 1 8 93 145 3 +217.85 ± 35.44
398760 ncm-dbt-04 572396 500 202 64 234 +98.44 ± 14.14 2 6 97 142 3 +213.85 ± 34.58
398759 ncm-dbt-02 583698 500 193 72 235 +85.78 ± 13.61 0 11 109 128 2 +179.9 ± 32.5
398758 ncm-dbt-01 585211 500 190 50 260 +99.95 ± 14.15 0 12 89 146 3 +213.85 ± 36.34
398757 ncm-dbt-03 583992 500 189 71 240 +83.57 ± 14.88 2 15 97 135 1 +179.9 ± 34.76
398756 ncm-dbt-05 586562 500 196 60 244 +96.94 ± 13.96 0 11 95 141 3 +206.01 ± 35.09
398755 ncm-dbt-04 573527 500 190 70 240 +85.04 ± 12.97 0 8 115 126 1 +179.9 ± 31.32
398754 ncm-dbt-02 587919 500 205 71 224 +95.44 ± 13.79 1 9 96 143 1 +207.95 ± 34.86
398753 ncm-dbt-01 585759 500 200 61 239 +99.2 ± 13.35 0 8 97 143 2 +213.85 ± 34.58
398752 ncm-dbt-04 569829 500 196 52 252 +102.97 ± 14.18 0 12 85 150 3 +221.9 ± 37.21
398751 ncm-dbt-03 585211 500 207 66 227 +100.7 ± 13.69 0 10 91 147 2 +217.85 ± 35.89
398750 ncm-dbt-05 581569 500 196 71 233 +88.74 ± 15.42 1 17 93 134 5 +183.51 ± 35.5
398749 ncm-dbt-02 583908 500 185 61 254 +88.0 ± 13.97 0 13 102 133 2 +185.33 ± 33.81
398748 ncm-dbt-01 584327 500 203 72 225 +93.2 ± 13.6 0 10 101 137 2 +198.34 ± 33.9
398747 ncm-dbt-04 571511 500 189 55 256 +95.44 ± 14.55 0 14 92 140 4 +200.24 ± 35.72
398746 ncm-dbt-05 587622 500 192 71 237 +85.78 ± 14.36 0 14 105 127 4 +176.33 ± 33.3
398745 ncm-dbt-03 585548 500 197 70 233 +90.22 ± 13.7 0 11 103 134 2 +190.85 ± 33.57
398744 ncm-dbt-04 567522 500 201 49 250 +109.07 ± 12.7 0 5 89 155 1 +243.0 ± 36.1
398743 ncm-dbt-01 585590 500 201 67 232 +95.44 ± 14.84 0 16 88 142 4 +200.24 ± 36.52
398742 ncm-dbt-02 584958 500 206 65 229 +100.71 ± 13.69 1 8 91 149 1 +221.9 ± 35.86
398741 ncm-dbt-05 587197 500 210 70 220 +99.95 ± 13.68 0 11 89 149 1 +217.85 ± 36.33
398740 ncm-dbt-03 584958 500 202 64 234 +98.44 ± 13.51 0 9 96 143 2 +211.87 ± 34.83
398739 ncm-dbt-01 584958 500 193 66 241 +90.22 ± 13.55 0 9 108 130 3 +189.0 ± 32.58
398738 ncm-dbt-04 573527 500 205 66 229 +99.2 ± 13.19 0 8 96 145 1 +215.85 ± 34.78
398737 ncm-dbt-05 588430 500 205 59 236 +104.49 ± 13.55 0 9 88 151 2 +228.08 ± 36.51
398736 ncm-dbt-03 587113 500 201 66 233 +96.19 ± 13.95 0 9 102 134 5 +200.24 ± 33.67
398735 ncm-dbt-02 586350 500 191 66 243 +88.74 ± 14.13 0 14 99 135 2 +187.16 ± 34.38

Commit

Commit ID 3dfbc5de25705fadcb4b5b7a551eacb3eb75d171
Author Daniel Monroe
Date 2025-02-05 17:56:12 UTC
Remove non-pawn material check in qsearch pruning Passed simplification STC LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 47712 W: 12621 L: 12409 D: 22682 Ptnml(0-2): 224, 5349, 12480, 5597, 206 https://tests.stockfishchess.org/tests/view/67a1b4fb612069de394afc37 Passed rebased simplification LTC LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 188274 W: 47727 L: 47677 D: 92870 Ptnml(0-2): 171, 20429, 52867, 20519, 151 https://tests.stockfishchess.org/tests/view/67a2a761fedef70e42ac3300 closes https://github.com/official-stockfish/Stockfish/pull/5866 bench 2654242
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