Dev Builds » 20240723-1723

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 07:03:54 585271 4068 1520 573 1975 +82.39 ± 4.93 3 111 871 1034 15 +172.65 ± 11.5
ncm-dbt-02 07:04:02 587366 4128 1561 625 1942 +80.17 ± 4.96 4 118 901 1020 21 +166.34 ± 11.3
ncm-dbt-03 07:04:05 587700 4106 1522 595 1989 +79.81 ± 4.94 2 124 888 1023 16 +166.11 ± 11.4
ncm-dbt-04 07:03:02 568316 4092 1557 584 1951 +84.23 ± 4.95 1 121 842 1068 14 +176.86 ± 11.72
ncm-dbt-05 06:15:48 587551 3606 1352 486 1768 +85.1 ± 5.19 3 93 750 949 8 +180.59 ± 12.4
20000 7512 2863 9625 +82.27 ± 2.23 13 567 4252 5094 74 +172.26 ± 5.21

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
371282 ncm-dbt-01 583740 68 28 13 27 +77.92 ± 40.13 0 3 13 18 0 +164.58 ± 98.34 ↓
371281 ncm-dbt-04 568752 92 32 13 47 +72.8 ± 37.37 0 6 15 25 0 +152.62 ± 88.73 ↓
371280 ncm-dbt-03 587919 106 39 21 46 +59.57 ± 28.05 0 3 29 21 0 +122.88 ± 62.31 ↓
371279 ncm-dbt-05 587834 106 43 10 53 +111.86 ± 27.12 0 0 21 31 1 +242.86 ± 74.31 ↓
371278 ncm-dbt-02 586816 128 50 17 61 +91.63 ± 22.83 0 0 31 33 0 +198.15 ± 58.95 ↓
371277 ncm-dbt-01 584495 500 191 66 243 +88.74 ± 14.43 0 15 98 134 3 +185.33 ± 34.57 ↓
371276 ncm-dbt-04 567561 500 190 72 238 +83.57 ± 14.31 1 13 105 129 2 +176.33 ± 33.3 ↓
371275 ncm-dbt-05 590010 500 197 56 247 +100.7 ± 13.03 0 6 99 143 2 +217.85 ± 34.06 ↓
371274 ncm-dbt-03 586266 500 187 70 243 +82.83 ± 12.91 0 9 115 126 0 +176.33 ± 31.38 ↓
371273 ncm-dbt-02 585674 500 189 82 229 +75.52 ± 13.49 0 12 121 115 2 +155.54 ± 30.59 ↓
371272 ncm-dbt-01 586477 500 184 72 244 +79.17 ± 13.75 0 13 114 121 2 +164.07 ± 31.75 ↓
371271 ncm-dbt-04 567720 500 192 68 240 +88.0 ± 14.56 0 15 100 131 4 +181.7 ± 34.21 ↓
371270 ncm-dbt-03 588004 500 190 73 237 +82.83 ± 15.41 1 19 96 130 4 +171.02 ± 34.92 ↓
371269 ncm-dbt-05 587070 500 186 62 252 +88.0 ± 13.81 0 12 104 132 2 +185.33 ± 33.42 ↓
371268 ncm-dbt-02 585548 500 189 72 239 +82.83 ± 13.7 0 12 111 125 2 +172.78 ± 32.21 ↓
371267 ncm-dbt-01 586477 500 200 70 230 +92.45 ± 13.27 0 8 106 134 2 +196.45 ± 32.87 ↓
371266 ncm-dbt-04 569589 500 183 75 242 +76.25 ± 14.25 0 17 110 121 2 +157.24 ± 32.52 ↓
371265 ncm-dbt-03 587664 500 183 66 251 +82.83 ± 14.0 1 11 110 126 2 +174.55 ± 32.38 ↓
371264 ncm-dbt-05 588345 500 185 73 242 +79.17 ± 13.9 0 16 106 128 0 +167.53 ± 33.17 ↓
371263 ncm-dbt-02 591039 500 196 75 229 +85.78 ± 14.07 1 10 109 127 3 +179.9 ± 32.5 ↓
371262 ncm-dbt-04 566375 500 195 64 241 +93.2 ± 13.91 0 11 100 136 3 +196.45 ± 34.12 ↓
371261 ncm-dbt-01 584369 500 192 80 228 +79.17 ± 14.05 0 16 107 126 1 +165.8 ± 33.0 ↓
371260 ncm-dbt-03 589326 500 177 81 242 +67.54 ± 14.65 0 21 115 111 3 +135.76 ± 31.8 ↓
371259 ncm-dbt-02 587113 500 173 74 253 +69.71 ± 15.66 2 23 101 122 2 +145.54 ± 34.01 ↓
371258 ncm-dbt-05 584664 500 187 61 252 +89.48 ± 14.15 1 13 95 141 0 +194.57 ± 35.13 ↓
371257 ncm-dbt-01 585843 500 188 62 250 +89.48 ± 13.53 0 10 106 132 2 +189.0 ± 32.98 ↓
371256 ncm-dbt-04 569190 500 184 68 248 +82.1 ± 14.27 0 18 98 134 0 +174.55 ± 34.58 ↓
371255 ncm-dbt-03 584706 500 178 65 257 +79.9 ± 13.92 0 13 114 120 3 +164.07 ± 31.75 ↓
371254 ncm-dbt-02 587834 500 187 66 247 +85.78 ± 13.61 0 11 109 128 2 +179.9 ± 32.5 ↓
371253 ncm-dbt-05 587240 500 180 72 248 +76.25 ± 14.67 2 15 107 125 1 +162.35 ± 33.02 ↓
371252 ncm-dbt-01 583070 500 176 84 240 +64.66 ± 14.67 1 19 120 107 3 +130.94 ± 31.03 ↓
371251 ncm-dbt-04 569031 500 196 71 233 +88.74 ± 14.43 0 17 92 140 1 +189.0 ± 35.7 ↓
371250 ncm-dbt-03 587962 500 186 63 251 +87.26 ± 14.25 0 15 99 134 2 +183.51 ± 34.39 ↓
371249 ncm-dbt-02 586816 500 190 84 226 +74.79 ± 14.76 1 17 110 119 3 +153.86 ± 32.54 ↓
371248 ncm-dbt-05 587028 500 188 79 233 +76.97 ± 13.68 0 14 114 121 1 +160.64 ± 31.79 ↓
371247 ncm-dbt-04 568554 500 196 84 220 +79.17 ± 13.29 0 12 114 124 0 +167.53 ± 31.71 ↓
371246 ncm-dbt-01 584117 500 187 69 244 +83.57 ± 14.45 1 15 100 133 1 +178.11 ± 34.22 ↓
371245 ncm-dbt-02 588984 500 200 84 216 +82.1 ± 14.56 0 16 106 124 4 +167.53 ± 33.17 ↓
371244 ncm-dbt-03 587749 500 192 82 226 +77.7 ± 14.99 0 22 98 128 2 +160.64 ± 34.55 ↓
371243 ncm-dbt-05 588217 500 186 73 241 +79.9 ± 14.21 0 17 104 128 1 +167.53 ± 33.52 ↓
371242 ncm-dbt-04 568077 500 189 69 242 +85.04 ± 13.75 0 12 108 128 2 +178.11 ± 32.72 ↓
371241 ncm-dbt-03 589710 500 190 74 236 +82.1 ± 13.21 0 11 112 127 0 +174.55 ± 32.0 ↓
371240 ncm-dbt-02 586477 500 187 71 242 +82.1 ± 14.56 0 17 103 127 3 +169.27 ± 33.7 ↓
371239 ncm-dbt-01 588856 500 174 57 269 +82.83 ± 14.0 1 12 107 129 1 +176.33 ± 32.93 ↓

Commit

Commit ID 986173264f4c03e3750bd68f904bfdf1152437d4
Author FauziAkram
Date 2024-07-23 17:23:57 UTC
Adding LowestElo and HighestElo constants These values represent the lowest Elo rating in the skill level calculation, and the highest one, but it's not clear from the code where these values come from other than the comment. This should improve code readability and maintainability. It makes the purpose of the values clear and allows for easy modification if the Elo range for skill level calculation changes in the future. Moved the Skill struct definition from search.cpp to search.h header file to define the Search::Skill struct, making it accessible from other files. closes https://github.com/official-stockfish/Stockfish/pull/5508 No functional change
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