Dev Builds » 20240509-0702

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 14. 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 11:45:10 1126629 4008 1753 320 1935 +129.96 +/- 4.93 0 53 528 1360 63 +290.42 +/- 14.84
ncm-dbt-02 11:42:08 1201291 3970 1748 294 1928 +133.44 +/- 4.67 0 40 494 1408 43 +308.82 +/- 15.34
ncm-dbt-03 11:51:03 1198395 4024 1763 318 1943 +130.58 +/- 4.71 1 42 525 1399 45 +298.84 +/- 14.88
ncm-dbt-05 11:38:07 1195936 3946 1738 295 1913 +133.22 +/- 4.85 0 45 498 1372 58 +302.68 +/- 15.28
ncm-dbt-06 11:52:48 1226268 4052 1790 302 1960 +133.84 +/- 4.77 1 40 516 1408 61 +304.65 +/- 15.01
20000 8792 1529 9679 +132.2 +/- 2.14 2 220 2561 6947 270 +300.99 +/- 6.73

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
367091 ncm-dbt-01 1116394 8 2 0 6 +88.62 +/- 93.84 0 0 2 2 0 +190.67 +/- 458.56
367090 ncm-dbt-03 1196265 24 12 1 11 +171.98 +/- 34.81 0 0 1 11 0 +544.34 +/- 426.92
367089 ncm-dbt-06 1236186 52 25 3 24 +156.82 +/- 29.5 0 0 4 22 0 +431.59 +/- 270.17
367088 ncm-dbt-05 1197472 446 196 36 214 +130.44 +/- 15.81 0 9 54 151 9 +286.22 +/- 46.74
367087 ncm-dbt-02 1198443 470 205 37 228 +129.92 +/- 13.7 0 4 65 160 6 +294.19 +/- 42.68
367086 ncm-dbt-01 1117618 500 205 49 246 +112.14 +/- 14.85 0 12 77 154 7 +238.66 +/- 39.1
367085 ncm-dbt-03 1199703 500 213 40 247 +125.38 +/- 13.61 0 8 65 173 4 +285.49 +/- 42.7
367084 ncm-dbt-06 1213927 500 225 42 233 +133.34 +/- 14.17 0 6 65 169 10 +295.94 +/- 42.75
367083 ncm-dbt-05 1195864 500 233 40 227 +141.44 +/- 13.96 0 4 61 173 12 +318.25 +/- 44.18
367082 ncm-dbt-02 1197111 500 218 39 243 +130.14 +/- 13.88 0 7 64 172 7 +293.29 +/- 43.07
367081 ncm-dbt-01 1122890 500 221 37 242 +134.15 +/- 13.97 0 8 57 178 7 +306.84 +/- 45.58
367080 ncm-dbt-03 1197029 500 221 38 241 +133.34 +/- 13.63 1 2 68 171 8 +304.07 +/- 41.65
367079 ncm-dbt-06 1244796 500 220 34 246 +135.76 +/- 12.81 0 2 67 174 7 +312.48 +/- 41.9
367078 ncm-dbt-05 1192453 500 211 38 251 +125.38 +/- 13.79 0 7 69 168 6 +280.42 +/- 41.44
367077 ncm-dbt-02 1193694 500 224 33 243 +139.81 +/- 12.26 0 2 60 183 5 +333.32 +/- 44.47
367076 ncm-dbt-01 1136617 500 228 34 238 +142.25 +/- 12.78 0 1 63 177 9 +330.23 +/- 43.2
367075 ncm-dbt-03 1204522 500 219 40 241 +130.14 +/- 13.52 0 5 68 170 7 +293.29 +/- 41.75
367074 ncm-dbt-06 1230597 500 229 33 238 +143.89 +/- 12.09 0 1 58 185 6 +346.12 +/- 45.18
367073 ncm-dbt-05 1194323 500 214 45 241 +122.24 +/- 12.76 0 3 79 164 4 +275.45 +/- 38.39
367072 ncm-dbt-02 1197466 500 226 30 244 +143.89 +/- 12.92 0 4 53 186 7 +342.85 +/- 47.56
367071 ncm-dbt-01 1133713 500 223 37 240 +135.76 +/- 14.47 0 6 64 168 12 +298.62 +/- 43.1
367070 ncm-dbt-03 1201857 500 216 42 242 +126.17 +/- 13.42 0 6 69 170 5 +285.49 +/- 41.44
367069 ncm-dbt-06 1230501 500 219 40 241 +130.14 +/- 14.4 0 9 61 172 8 +290.66 +/- 44.0
367068 ncm-dbt-05 1194657 500 234 43 223 +139.81 +/- 13.07 0 6 52 187 5 +333.32 +/- 47.9
367067 ncm-dbt-02 1197049 500 222 33 245 +138.18 +/- 13.12 0 3 63 176 8 +318.25 +/- 43.39
367066 ncm-dbt-01 1116339 500 217 48 235 +122.24 +/- 14.17 0 6 78 157 9 +263.42 +/- 38.85
367065 ncm-dbt-03 1193302 500 216 45 239 +123.81 +/- 13.81 0 8 68 169 5 +277.93 +/- 41.74
367064 ncm-dbt-06 1223787 500 215 31 254 +134.15 +/- 12.86 0 4 63 178 5 +312.48 +/- 43.44
367063 ncm-dbt-05 1198919 500 211 26 263 +134.95 +/- 14.13 0 5 66 168 11 +298.62 +/- 42.41
367062 ncm-dbt-02 1194819 500 216 44 240 +124.6 +/- 13.8 0 6 73 164 7 +275.45 +/- 40.24
367061 ncm-dbt-01 1136537 500 214 34 252 +130.94 +/- 13.32 0 6 63 176 5 +301.33 +/- 43.45
367060 ncm-dbt-03 1200409 500 217 50 233 +120.67 +/- 14.18 0 10 68 167 5 +268.17 +/- 41.66
367059 ncm-dbt-06 1225771 500 226 33 241 +141.44 +/- 13.01 0 4 56 183 7 +333.32 +/- 46.21
367058 ncm-dbt-05 1199452 500 220 32 248 +137.37 +/- 13.53 0 6 57 180 7 +318.25 +/- 45.73
367057 ncm-dbt-02 1201310 500 213 43 244 +123.02 +/- 13.29 0 7 69 171 3 +280.42 +/- 41.44
367056 ncm-dbt-01 1132112 500 222 43 235 +130.14 +/- 13.52 0 5 68 170 7 +293.29 +/- 41.75
367055 ncm-dbt-03 1200124 500 224 33 243 +139.81 +/- 12.47 0 1 64 178 7 +327.18 +/- 42.83
367054 ncm-dbt-06 1196655 500 222 49 229 +125.39 +/- 14.96 1 7 70 162 10 +273.0 +/- 41.13
367053 ncm-dbt-05 1194352 500 219 35 246 +134.15 +/- 12.86 0 5 60 181 4 +315.35 +/- 44.57
367052 ncm-dbt-02 1230436 500 224 35 241 +138.18 +/- 12.33 0 7 47 196 0 +342.85 +/- 50.22
367051 ncm-dbt-01 1127448 500 221 38 241 +133.34 +/- 14.17 0 9 56 178 7 +304.07 +/- 45.87
367050 ncm-dbt-03 1192349 500 225 29 246 +143.89 +/- 11.87 0 2 54 190 4 +352.8 +/- 47.05
367049 ncm-dbt-06 1234196 500 209 37 254 +124.6 +/- 14.14 0 7 72 163 8 +273.0 +/- 40.54

Commit

Commit ID c43425b0b1167665b2f9520690e639c80977c067
Author Shawn Xu
Date 2024-05-09 07:02:57 UTC
Simplify Away Negative Extension This patch simplifies away the negative extension applied when the value returned by the transposition table is assumed to fail low over the value of reduced search. Passed STC: LLR: 2.99 (-2.94,2.94) <-1.75,0.25> Total: 248736 W: 64293 L: 64302 D: 120141 Ptnml(0-2): 925, 29833, 62831, 29884, 895 https://tests.stockfishchess.org/tests/view/663bee3bca93dad645f7f64a Passed LTC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 254970 W: 64289 L: 64308 D: 126373 Ptnml(0-2): 110, 28428, 70422, 28421, 104 https://tests.stockfishchess.org/tests/view/663c11f0c0b75d7f7b97d4bb closes https://github.com/official-stockfish/Stockfish/pull/5226 Bench: 2353057
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