Dev Builds » 20250202-1236

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 06:46:29 583150 4000 1596 497 1907 +97.97 ± 4.9 1 87 741 1154 17 +210.64 ± 12.5
ncm-dbt-02 06:47:38 585512 4000 1587 508 1905 +96.1 ± 4.87 1 88 754 1145 12 +206.98 ± 12.39
ncm-dbt-03 06:48:06 586607 4000 1549 551 1900 +88.55 ± 4.84 3 84 838 1062 13 +188.08 ± 11.7
ncm-dbt-04 06:47:04 570715 4000 1582 502 1916 +96.19 ± 4.95 4 90 741 1152 13 +207.71 ± 12.51
ncm-dbt-05 06:49:21 586472 4000 1570 559 1871 +89.76 ± 4.95 3 100 791 1095 11 +191.54 ± 12.1
20000 7884 2617 9499 +93.7 ± 2.19 12 449 3865 5608 66 +200.86 ± 5.47

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
399137 ncm-dbt-04 570509 500 202 62 236 +99.95 ± 13.84 0 10 93 144 3 +213.85 ± 35.47
399136 ncm-dbt-05 584832 500 203 78 219 +88.74 ± 14.43 1 11 104 130 4 +185.33 ± 33.42
399135 ncm-dbt-01 577192 500 203 53 244 +107.54 ± 13.4 0 6 92 148 4 +232.26 ± 35.5
399134 ncm-dbt-03 587240 500 193 67 240 +89.48 ± 14.15 0 14 98 136 2 +189.0 ± 34.56
399133 ncm-dbt-02 587962 500 193 56 251 +97.69 ± 14.28 1 12 87 149 1 +213.85 ± 36.76
399132 ncm-dbt-04 571752 500 188 68 244 +85.04 ± 14.49 1 13 104 129 3 +178.11 ± 33.48
399131 ncm-dbt-05 587919 500 197 67 236 +92.45 ± 14.94 0 21 78 151 0 +200.24 ± 38.43
399130 ncm-dbt-01 583405 500 207 60 233 +105.25 ± 13.22 0 8 88 153 1 +232.26 ± 36.48
399129 ncm-dbt-03 586097 500 192 74 234 +83.57 ± 13.87 0 13 108 127 2 +174.55 ± 32.75
399128 ncm-dbt-02 586943 500 201 68 231 +94.69 ± 13.14 0 8 102 139 1 +204.07 ± 33.61
399127 ncm-dbt-04 571712 500 200 60 240 +99.95 ± 14.31 0 13 87 147 3 +213.85 ± 36.76
399126 ncm-dbt-05 583824 500 199 56 245 +102.22 ± 13.86 0 11 87 150 2 +221.9 ± 36.76
399125 ncm-dbt-03 586943 500 192 70 238 +86.52 ± 14.08 2 9 105 133 1 +187.16 ± 33.21
399124 ncm-dbt-01 583698 500 196 66 238 +92.45 ± 14.65 0 18 85 146 1 +198.34 ± 37.08
399123 ncm-dbt-02 581444 500 199 65 236 +95.44 ± 13.79 0 12 93 144 1 +206.01 ± 35.51
399122 ncm-dbt-04 569310 500 198 59 243 +99.2 ± 14.3 1 13 82 154 0 +219.87 ± 37.85
399121 ncm-dbt-05 583279 500 196 69 235 +90.22 ± 14.01 0 14 96 139 1 +192.71 ± 34.94
399120 ncm-dbt-03 583698 500 183 63 254 +85.04 ± 13.6 0 12 107 130 1 +179.9 ± 32.89
399119 ncm-dbt-02 587792 500 194 58 248 +96.94 ± 13.49 0 10 95 144 1 +209.91 ± 35.06
399118 ncm-dbt-01 583447 500 195 60 245 +96.19 ± 13.48 0 11 93 146 0 +209.91 ± 35.49
399117 ncm-dbt-04 569270 500 200 70 230 +92.45 ± 13.74 0 12 97 140 1 +198.34 ± 34.72
399116 ncm-dbt-03 586308 500 208 63 229 +103.73 ± 12.7 0 5 96 148 1 +228.08 ± 34.59
399115 ncm-dbt-05 584958 500 196 73 231 +87.26 ± 13.95 0 14 100 135 1 +185.33 ± 34.19
399114 ncm-dbt-02 581028 500 206 76 218 +92.45 ± 14.05 0 11 102 133 4 +192.71 ± 33.75
399113 ncm-dbt-01 583279 500 198 54 248 +102.97 ± 13.21 0 7 94 147 2 +223.94 ± 35.14
399112 ncm-dbt-04 572114 500 207 57 236 +107.54 ± 13.23 0 8 85 156 1 +238.66 ± 37.17
399111 ncm-dbt-03 586181 500 202 71 227 +93.2 ± 13.6 0 11 98 140 1 +200.24 ± 34.5
399110 ncm-dbt-01 584874 500 205 73 222 +93.95 ± 14.53 0 15 91 141 3 +198.34 ± 35.92
399109 ncm-dbt-05 585421 500 204 63 233 +100.7 ± 13.03 0 6 99 143 2 +217.85 ± 34.06
399108 ncm-dbt-02 585169 500 197 60 243 +97.69 ± 13.17 0 7 101 140 2 +209.91 ± 33.74
398502 ncm-dbt-02 585928 500 204 63 233 +100.7 ± 13.69 0 10 91 147 2 +217.85 ± 35.89
398501 ncm-dbt-05 586266 500 180 76 244 +73.34 ± 14.15 1 15 114 119 1 +153.86 ± 31.85
398500 ncm-dbt-03 587282 500 186 71 243 +81.37 ± 13.66 1 10 113 125 1 +172.78 ± 31.83
398499 ncm-dbt-04 570869 500 196 62 242 +95.44 ± 14.4 2 10 91 146 1 +209.91 ± 35.92
398498 ncm-dbt-01 580406 500 188 59 253 +91.71 ± 14.49 0 15 94 138 3 +192.71 ± 35.33
398497 ncm-dbt-02 587834 500 193 62 245 +93.2 ± 14.51 0 18 83 149 0 +202.15 ± 37.5
398496 ncm-dbt-03 589112 500 193 72 235 +85.78 ± 13.77 0 10 113 123 4 +176.33 ± 31.78
398495 ncm-dbt-05 595281 500 195 77 228 +83.57 ± 13.25 1 8 113 128 0 +179.9 ± 31.72
398494 ncm-dbt-04 570188 500 191 64 245 +90.22 ± 13.55 0 11 102 136 1 +192.71 ± 33.75
398493 ncm-dbt-01 588899 500 204 72 224 +93.95 ± 13.77 1 7 104 135 3 +200.24 ± 33.24

Commit

Commit ID 5ef1f2b13276c11814187b4ee115454803d399e3
Author Daniel Monroe
Date 2025-02-02 12:36:58 UTC
Refactor prior reduction Make index of reduction consistent with rest of Stack closes https://github.com/official-stockfish/Stockfish/pull/5832 No functional change
Copyright 2011–2025 Next Chess Move LLC