Dev Builds » 20251113-2135

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 06:46:14 581313 4016 1712 434 1870 +114.54 ± 4.75 0 51 661 1263 33 +251.9 ± 13.22
ncm-dbt-02 06:44:47 585709 4000 1690 416 1894 +114.65 ± 4.6 0 37 679 1257 27 +253.87 ± 13.0
ncm-dbt-03 06:46:03 585434 4004 1712 419 1873 +116.36 ± 4.76 1 46 650 1269 36 +256.66 ± 13.33
ncm-dbt-04 06:46:03 567180 4014 1685 448 1881 +110.67 ± 4.63 0 50 688 1251 18 +244.86 ± 12.94
ncm-dbt-05 06:46:29 583692 3966 1675 433 1858 +112.59 ± 4.84 1 59 649 1245 29 +247.53 ± 13.36
20000 8474 2150 9376 +113.76 ± 2.11 2 243 3327 6285 143 +250.93 ± 5.89

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
441234 ncm-dbt-03 583992 4 2 0 2 +190.27 ± 27.79 0 0 0 2 0 +1199.83 ± 312.71
441233 ncm-dbt-04 565115 14 6 0 8 +159.07 ± 56.3 0 0 1 6 0 +445.23 ± 480.27
441232 ncm-dbt-01 578547 16 7 0 9 +162.9 ± 50.11 0 0 1 7 0 +470.09 ± 466.68
441231 ncm-dbt-05 586097 466 188 61 217 +97.14 ± 14.46 0 10 89 131 3 +206.1 ± 36.25
441230 ncm-dbt-02 586139 500 215 58 227 +112.91 ± 13.39 0 5 88 152 5 +245.2 ± 36.32
441229 ncm-dbt-01 580033 500 204 57 239 +105.25 ± 12.88 0 6 92 151 1 +232.26 ± 35.5
441228 ncm-dbt-03 585421 500 212 53 235 +114.45 ± 13.55 0 4 90 149 7 +245.2 ± 35.79
441227 ncm-dbt-04 567601 500 215 50 235 +119.11 ± 12.8 0 4 80 163 3 +268.17 ± 38.21
441226 ncm-dbt-05 580447 500 222 46 232 +127.76 ± 13.02 0 4 71 170 5 +290.66 ± 40.76
441225 ncm-dbt-02 587070 500 214 52 234 +116.77 ± 13.01 0 3 87 155 5 +256.44 ± 36.38
441224 ncm-dbt-01 581985 500 208 41 251 +120.67 ± 13.5 0 9 67 172 2 +275.45 ± 42.01
441223 ncm-dbt-03 584201 500 211 51 238 +115.22 ± 13.03 0 6 80 162 2 +258.75 ± 38.32
441222 ncm-dbt-04 568395 500 219 54 227 +119.11 ± 13.17 0 5 79 162 4 +265.78 ± 38.54
441221 ncm-dbt-05 581860 500 215 54 231 +116.0 ± 12.84 0 5 81 162 2 +261.07 ± 38.02
441220 ncm-dbt-02 583070 500 210 56 234 +110.6 ± 13.56 0 6 89 150 5 +238.66 ± 36.16
441219 ncm-dbt-01 580033 500 217 59 224 +113.68 ± 13.72 0 6 86 152 6 +245.2 ± 36.85
441218 ncm-dbt-04 568554 500 212 57 231 +111.37 ± 13.22 0 8 80 161 1 +249.64 ± 38.38
441217 ncm-dbt-03 586774 500 215 47 238 +121.45 ± 13.66 0 8 70 168 4 +273.0 ± 41.13
441216 ncm-dbt-05 582444 500 205 54 241 +108.3 ± 12.88 0 5 91 152 2 +238.66 ± 35.65
441215 ncm-dbt-02 587282 500 201 50 249 +108.3 ± 13.06 0 6 89 153 2 +238.66 ± 36.16
441214 ncm-dbt-04 567799 500 202 53 245 +106.77 ± 13.56 0 10 82 157 1 +236.51 ± 37.9
441213 ncm-dbt-01 582193 500 203 56 241 +105.25 ± 14.2 0 9 91 144 6 +221.9 ± 35.86
441212 ncm-dbt-03 588217 500 213 58 229 +111.37 ± 12.51 0 2 94 151 3 +245.2 ± 34.7
441211 ncm-dbt-05 579207 500 213 49 238 +118.33 ± 13.17 0 6 77 164 3 +265.78 ± 39.12
441210 ncm-dbt-02 586054 500 213 57 230 +112.14 ± 13.89 0 8 83 154 5 +243.0 ± 37.64
441209 ncm-dbt-03 584495 500 224 54 222 +123.02 ± 14.33 0 5 81 153 11 +261.07 ± 38.02
441208 ncm-dbt-04 567640 500 208 59 233 +106.77 ± 13.06 0 6 91 151 2 +234.38 ± 35.72
441207 ncm-dbt-01 580987 500 224 61 215 +117.55 ± 13.7 0 8 75 163 4 +261.07 ± 39.69
441206 ncm-dbt-05 575109 500 216 48 236 +121.45 ± 13.66 0 5 79 159 7 +265.78 ± 38.54
441205 ncm-dbt-04 566099 500 200 55 245 +103.73 ± 12.7 0 4 99 145 2 +226.0 ± 33.89
441204 ncm-dbt-02 583866 500 218 57 225 +116.0 ± 12.66 0 3 86 158 3 +258.75 ± 36.62
441203 ncm-dbt-03 585548 500 208 50 242 +113.68 ± 14.05 1 8 76 162 3 +254.16 ± 39.42
441202 ncm-dbt-01 582318 500 215 53 232 +116.77 ± 13.71 0 6 82 156 6 +254.16 ± 37.82
441201 ncm-dbt-05 583992 500 209 60 231 +106.77 ± 13.89 0 11 81 156 2 +234.38 ± 38.14
441200 ncm-dbt-02 585506 500 207 42 251 +119.11 ± 12.24 0 3 80 166 1 +273.0 ± 38.12
441199 ncm-dbt-04 566888 500 207 57 236 +107.54 ± 13.06 0 6 90 152 2 +236.51 ± 35.94
441198 ncm-dbt-01 583782 500 222 50 228 +124.6 ± 12.9 0 3 77 165 5 +280.42 ± 38.93
441197 ncm-dbt-03 583992 500 209 52 239 +112.91 ± 13.22 0 5 87 154 4 +247.41 ± 36.56
441196 ncm-dbt-05 600380 500 207 61 232 +104.49 ± 15.1 1 13 80 151 5 +223.94 ± 38.31
441195 ncm-dbt-04 566533 500 216 63 221 +109.83 ± 13.4 0 7 86 154 3 +240.82 ± 36.9
441194 ncm-dbt-02 586689 500 212 44 244 +121.45 ± 12.2 0 3 77 169 1 +280.42 ± 38.93
441193 ncm-dbt-03 586266 500 218 54 228 +118.33 ± 13.35 0 8 72 168 2 +268.17 ± 40.54
441192 ncm-dbt-01 581943 500 212 57 231 +111.37 ± 12.87 0 4 90 153 3 +245.2 ± 35.79

Commit

Commit ID 9e38023a8c2c67204f9a5d03eac5d5f00ea93d3f
Author Daniel Monroe
Date 2025-11-13 21:35:33 UTC
Simplify threat term in movepick Passed simplification STC LLR: 2.97 (-2.94,2.94) <-1.75,0.25> Total: 71296 W: 18605 L: 18419 D: 34272 Ptnml(0-2): 250, 8374, 18183, 8622, 219 https://tests.stockfishchess.org/tests/view/690454c7ea4b268f1fac1bbe Passed simplification LTC LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 240552 W: 61870 L: 61874 D: 116808 Ptnml(0-2): 113, 26300, 67460, 26284, 119 https://tests.stockfishchess.org/tests/view/69063956ea4b268f1fac1f66 closes https://github.com/official-stockfish/Stockfish/pull/6401 bench 2697501
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