Dev Builds » 20210629-0824

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 06:59:42 582652 3998 501 1552 1945 -93.53 ± 5.12 39 1076 781 103 0 -193.76 ± 12.18
ncm-dbt-02 06:57:50 584279 4000 483 1547 1970 -94.69 ± 4.98 27 1104 775 94 0 -199.53 ± 12.22
ncm-dbt-03 06:59:43 585589 3996 491 1546 1959 -93.95 ± 5.12 31 1104 752 111 0 -196.69 ± 12.42
ncm-dbt-04 06:58:56 566223 4014 496 1563 1955 -94.63 ± 4.99 29 1104 779 95 0 -198.91 ± 12.19
ncm-dbt-05 06:59:51 580676 3992 484 1565 1943 -96.49 ± 5.06 29 1123 745 98 1 -203.86 ± 12.48
20000 2455 7773 9772 -94.66 ± 2.26 155 5511 3832 501 1 -198.53 ± 5.5

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
452138 ncm-dbt-04 565941 14 2 6 6 -102.08 ± 106.14 0 5 1 1 0 -225.71 ± 594.39
452137 ncm-dbt-05 583279 492 62 195 235 -96.31 ± 14.57 4 137 94 10 1 -204.29 ± 35.28
452136 ncm-dbt-03 587113 496 67 205 224 -99.28 ± 13.75 3 141 95 9 0 -212.05 ± 35.02
452135 ncm-dbt-01 581277 498 57 200 241 -102.65 ± 15.13 9 137 91 12 0 -209.0 ± 35.91
452134 ncm-dbt-02 586731 500 47 191 262 -102.97 ± 13.87 2 151 86 11 0 -223.94 ± 36.98
452133 ncm-dbt-04 564017 500 65 194 241 -91.71 ± 14.04 4 132 103 11 0 -190.85 ± 33.57
452132 ncm-dbt-03 586943 500 61 203 236 -101.46 ± 15.07 6 145 84 15 0 -211.87 ± 37.38
452131 ncm-dbt-05 581569 500 57 187 256 -92.45 ± 14.05 1 142 93 14 0 -198.34 ± 35.52
452130 ncm-dbt-01 585169 500 72 190 238 -83.57 ± 14.45 7 116 115 12 0 -165.8 ± 31.55
452129 ncm-dbt-04 567442 500 56 203 241 -105.25 ± 13.56 4 146 93 7 0 -226.0 ± 35.35
452128 ncm-dbt-02 581860 500 56 197 247 -100.7 ± 14.16 4 144 91 11 0 -213.85 ± 35.9
452127 ncm-dbt-05 580116 500 59 202 239 -102.22 ± 13.86 3 147 90 10 0 -219.87 ± 36.1
452126 ncm-dbt-01 581319 500 71 199 230 -90.96 ± 14.62 4 135 96 15 0 -189.0 ± 34.95
452125 ncm-dbt-03 582652 500 58 178 264 -85.04 ± 15.06 1 140 87 22 0 -179.9 ± 36.55
452124 ncm-dbt-04 567126 500 60 195 245 -96.19 ± 12.82 1 139 104 6 0 -207.95 ± 33.1
452123 ncm-dbt-02 584916 500 57 195 248 -98.44 ± 13.34 2 142 98 8 0 -211.87 ± 34.38
452122 ncm-dbt-05 579289 500 52 205 243 -109.83 ± 14.37 3 160 74 13 0 -240.82 ± 39.83
452121 ncm-dbt-01 581402 500 64 194 242 -92.45 ± 14.05 3 136 99 12 0 -194.57 ± 34.34
452120 ncm-dbt-03 585084 500 63 184 253 -85.78 ± 14.51 1 137 94 18 0 -181.7 ± 35.31
452119 ncm-dbt-04 566651 500 62 189 249 -90.22 ± 13.86 4 129 107 10 0 -187.16 ± 32.81
452118 ncm-dbt-02 583489 500 70 189 241 -84.3 ± 13.27 1 127 112 10 0 -178.11 ± 31.94
452117 ncm-dbt-01 582485 500 58 194 248 -96.94 ± 13.81 4 137 100 9 0 -204.07 ± 34.04
452116 ncm-dbt-05 582945 500 55 205 240 -107.54 ± 14.68 9 141 91 9 0 -221.9 ± 35.86
452115 ncm-dbt-04 567047 500 52 190 258 -98.44 ± 13.67 4 138 100 8 0 -207.95 ± 33.99
452114 ncm-dbt-03 587325 500 60 195 245 -96.19 ± 13.8 3 139 98 10 0 -204.07 ± 34.47
452113 ncm-dbt-02 581818 500 56 189 255 -94.69 ± 14.83 5 138 92 15 0 -196.45 ± 35.72
452112 ncm-dbt-03 587367 500 61 199 240 -98.44 ± 14.14 6 135 100 9 0 -204.07 ± 34.04
452111 ncm-dbt-04 566375 500 66 209 225 -102.22 ± 14.18 3 149 86 12 0 -219.87 ± 36.98
452110 ncm-dbt-01 580447 500 67 187 246 -85.04 ± 15.06 2 137 90 21 0 -178.11 ± 36.01
452109 ncm-dbt-05 572155 500 61 195 244 -95.44 ± 14.7 5 138 93 14 0 -198.34 ± 35.52
452108 ncm-dbt-02 585801 500 71 202 227 -93.2 ± 14.81 5 136 94 15 0 -192.71 ± 35.33
452107 ncm-dbt-03 583698 500 63 193 244 -92.45 ± 14.79 5 135 95 15 0 -190.85 ± 35.14
452106 ncm-dbt-01 583824 500 48 200 252 -109.07 ± 13.73 5 149 89 7 0 -234.38 ± 36.22
452105 ncm-dbt-04 564958 500 67 190 243 -87.26 ± 15.79 6 133 89 22 0 -176.33 ± 36.17
452104 ncm-dbt-02 585590 500 68 202 230 -95.44 ± 14.4 7 130 103 10 0 -194.57 ± 33.53
452103 ncm-dbt-05 581860 500 66 178 256 -79.17 ± 13.9 0 128 106 16 0 -167.53 ± 33.17
452102 ncm-dbt-04 566454 500 66 187 247 -85.78 ± 14.79 3 133 96 18 0 -178.11 ± 34.94
452101 ncm-dbt-03 584537 500 58 189 253 -93.2 ± 14.66 6 132 99 13 0 -190.85 ± 34.36
452100 ncm-dbt-01 585295 500 64 188 248 -88.0 ± 14.7 5 129 101 15 0 -179.9 ± 34.03
452099 ncm-dbt-05 584201 500 72 198 230 -89.48 ± 14.15 4 130 104 12 0 -185.33 ± 33.42
452098 ncm-dbt-02 584034 500 58 182 260 -88.0 ± 13.97 1 136 99 14 0 -187.16 ± 34.38

Commit

Commit ID 2275923d3cbca85b433a4d16d40fae5c8de6784a
Author Brad Knox
Date 2021-06-29 08:24:54 UTC
Update Top CPU Contributors closes https://github.com/official-stockfish/Stockfish/pull/3595 No functional change
Copyright 2011–2026 Next Chess Move LLC