Dev Builds » 20201129-1552

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 06:51:20 584594 4002 303 1856 1843 -142.28 ± 4.87 103 1366 513 19 0 -318.72 ± 15.01
ncm-dbt-02 06:50:12 585105 4000 270 1838 1892 -143.89 ± 4.91 102 1391 480 27 0 -324.91 ± 15.56
ncm-dbt-03 06:50:32 584778 4000 297 1816 1887 -138.89 ± 4.94 90 1375 499 36 0 -311.41 ± 15.26
ncm-dbt-04 06:50:04 567506 4000 276 1857 1867 -145.23 ± 5.13 123 1370 472 35 0 -321.93 ± 15.7
ncm-dbt-05 06:51:40 582827 3998 245 1838 1915 -146.55 ± 4.76 93 1429 455 22 0 -338.34 ± 15.98
20000 1391 9205 9404 -143.36 ± 2.2 511 6931 2419 139 0 -322.9 ± 6.92

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
458242 ncm-dbt-01 584243 2 0 1 1 -189.7 ± 55.98 0 1 0 0 0 -1129.65 ± 376.02
458241 ncm-dbt-03 585674 500 33 241 226 -153.86 ± 13.88 16 178 54 2 0 -352.8 ± 47.05
458240 ncm-dbt-02 581527 500 32 219 249 -136.56 ± 13.36 9 172 66 3 0 -309.64 ± 42.33
458239 ncm-dbt-05 581735 498 26 224 248 -146.19 ± 12.85 9 182 56 2 0 -345.33 ± 46.14
458238 ncm-dbt-04 567007 500 41 231 228 -138.99 ± 14.03 14 164 70 2 0 -304.07 ± 40.91
458237 ncm-dbt-01 583489 500 42 225 233 -133.34 ± 12.69 6 173 69 2 0 -306.84 ± 41.23
458236 ncm-dbt-03 584453 500 31 232 237 -148.02 ± 13.54 13 177 58 2 0 -339.63 ± 45.29
458235 ncm-dbt-02 586012 500 26 220 254 -142.25 ± 14.48 15 168 63 4 0 -312.48 ± 43.44
458234 ncm-dbt-05 584664 500 26 231 243 -151.34 ± 13.6 12 185 49 4 0 -356.21 ± 49.54
458233 ncm-dbt-01 584201 500 41 235 224 -142.25 ± 14.12 15 166 67 2 0 -312.48 ± 41.9
458232 ncm-dbt-04 568116 500 37 231 232 -142.25 ± 13.94 11 177 57 5 0 -324.17 ± 45.77
458231 ncm-dbt-02 587282 500 44 234 222 -138.99 ± 14.39 12 172 60 6 0 -309.64 ± 44.55
458230 ncm-dbt-03 583908 500 38 230 232 -140.62 ± 13.62 9 179 57 5 0 -324.17 ± 45.77
458229 ncm-dbt-01 584622 500 46 229 225 -133.34 ± 13.99 10 168 67 5 0 -295.94 ± 42.08
458228 ncm-dbt-04 569430 500 43 239 218 -143.89 ± 15.48 20 161 64 5 0 -304.07 ± 43.1
458227 ncm-dbt-05 582987 500 25 225 250 -147.19 ± 11.92 7 186 57 0 0 -356.21 ± 45.43
458226 ncm-dbt-03 587409 500 41 224 235 -133.34 ± 13.63 8 172 65 5 0 -301.33 ± 42.75
458225 ncm-dbt-02 585000 500 30 233 237 -149.68 ± 14.06 16 173 59 2 0 -336.46 ± 44.87
458224 ncm-dbt-01 584369 500 28 233 239 -151.34 ± 13.99 15 178 54 3 0 -346.12 ± 47.1
458223 ncm-dbt-04 568156 500 36 221 243 -134.95 ± 13.78 9 172 64 5 0 -304.07 ± 43.1
458222 ncm-dbt-05 582277 500 41 226 233 -134.95 ± 13.22 8 172 67 3 0 -306.84 ± 41.99
458221 ncm-dbt-03 584664 500 37 225 238 -137.37 ± 14.6 13 168 63 6 0 -301.33 ± 43.45
458220 ncm-dbt-01 585464 500 30 226 244 -143.89 ± 14.25 16 166 66 2 0 -315.35 ± 42.24
458219 ncm-dbt-02 587113 500 36 221 243 -134.95 ± 13.96 9 173 62 6 0 -304.07 ± 43.81
458218 ncm-dbt-04 563392 500 25 231 244 -152.18 ± 15.07 19 173 53 5 0 -336.46 ± 47.52
458217 ncm-dbt-05 584411 500 30 235 235 -151.34 ± 12.57 8 192 47 3 0 -370.41 ± 50.67
458216 ncm-dbt-02 583531 500 36 238 226 -148.85 ± 14.46 19 165 65 1 0 -324.17 ± 42.47
458215 ncm-dbt-01 585759 500 41 228 231 -136.56 ± 14.1 13 164 70 3 0 -298.62 ± 41.01
458214 ncm-dbt-03 581610 500 30 217 253 -136.56 ± 13.73 8 177 59 6 0 -312.48 ± 44.93
458213 ncm-dbt-04 567442 500 36 238 226 -148.85 ± 15.52 21 165 59 5 0 -318.25 ± 44.96
458212 ncm-dbt-05 581985 500 33 240 227 -153.02 ± 15.22 23 163 62 2 0 -327.18 ± 43.69
458211 ncm-dbt-02 584369 500 34 233 233 -146.36 ± 13.41 10 183 53 4 0 -342.85 ± 47.56
458210 ncm-dbt-04 568275 500 28 230 242 -148.85 ± 13.7 14 176 58 2 0 -339.63 ± 45.29
458209 ncm-dbt-03 583992 500 39 222 239 -133.34 ± 13.99 11 165 70 4 0 -293.29 ± 41.07
458208 ncm-dbt-01 584706 500 39 243 218 -150.51 ± 12.83 12 180 58 0 0 -352.79 ± 45.01
458207 ncm-dbt-05 580613 500 31 228 241 -144.71 ± 14.59 14 175 55 6 0 -324.17 ± 46.56
458206 ncm-dbt-03 586520 500 48 225 227 -128.55 ± 14.59 12 159 73 6 0 -275.45 ± 40.24
458205 ncm-dbt-02 586012 500 32 240 228 -153.86 ± 12.87 12 185 52 1 0 -366.78 ± 47.92
458204 ncm-dbt-05 583950 500 33 229 238 -143.89 ± 13.51 12 174 62 2 0 -327.18 ± 43.69
458203 ncm-dbt-04 568236 500 30 236 234 -152.18 ± 14.52 15 182 47 6 0 -349.43 ± 50.38
458202 ncm-dbt-01 584495 500 36 236 228 -147.19 ± 14.15 16 170 62 2 0 -327.18 ± 43.69

Commit

Commit ID 2442ba2b0e8a399b0dbfe9d23a8a2819cb0af987
Author Unai Corzo
Date 2020-11-29 15:52:51 UTC
Reductions simplification Simplify increase reduction for captures/promotions if late move and at low depth. STC https://tests.stockfishchess.org/tests/view/5fbff65067cbf42301d6b3ae LLR: 2.97 (-2.94,2.94) {-1.25,0.25} Total: 49088 W: 4607 L: 4555 D: 39926 Ptnml(0-2): 177, 3615, 16932, 3619, 201 LTC https://tests.stockfishchess.org/tests/view/5fc0902967cbf42301d6b3fc LLR: 2.99 (-2.94,2.94) {-0.75,0.25} Total: 160944 W: 6153 L: 6193 D: 148598 Ptnml(0-2): 90, 5525, 69294, 5461, 102 closes https://github.com/official-stockfish/Stockfish/pull/3248 bench: 3834568
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