Dev Builds » 20201110-1721

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 06:46:03 583771 4018 311 1859 1848 -141.14 ± 5.05 113 1352 515 28 1 -311.61 ± 15.01
ncm-dbt-02 06:46:35 586242 3994 317 1853 1824 -140.86 ± 4.99 98 1376 487 36 0 -315.41 ± 15.45
ncm-dbt-03 06:44:37 584696 4000 311 1881 1808 -144.1 ± 5.06 112 1381 472 35 0 -321.93 ± 15.7
ncm-dbt-04 06:45:43 568611 3988 291 1854 1843 -143.86 ± 5.02 110 1373 482 28 1 -322.07 ± 15.53
ncm-dbt-05 06:46:00 582150 4000 276 1842 1882 -143.69 ± 4.88 103 1382 493 22 0 -323.79 ± 15.33
20000 1506 9289 9205 -142.73 ± 2.24 536 6864 2449 149 2 -318.91 ± 6.88

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
458503 ncm-dbt-01 585970 18 1 6 11 -99.09 ± 86.45 0 6 2 1 0 -217.63 ± 581.07
458502 ncm-dbt-04 566414 488 31 234 223 -153.85 ± 15.12 18 172 49 5 0 -344.64 ± 49.46
458501 ncm-dbt-02 584369 494 34 229 231 -145.02 ± 13.97 12 175 56 4 0 -330.92 ± 46.21
458500 ncm-dbt-05 582318 500 38 245 217 -153.02 ± 13.92 17 174 58 1 0 -346.12 ± 45.18
458499 ncm-dbt-03 584748 500 32 233 235 -148.02 ± 14.12 14 177 55 4 0 -336.46 ± 46.65
458498 ncm-dbt-01 583531 500 35 242 223 -153.02 ± 14.68 19 172 56 3 0 -339.63 ± 46.2
458497 ncm-dbt-04 569350 500 47 230 223 -133.34 ± 13.45 9 168 70 3 0 -298.62 ± 41.01
458496 ncm-dbt-05 579992 500 38 231 231 -141.44 ± 13.96 14 167 67 2 0 -312.48 ± 41.9
458495 ncm-dbt-02 588515 500 39 227 234 -137.37 ± 13.9 11 170 65 4 0 -306.84 ± 42.73
458494 ncm-dbt-03 585548 500 42 242 216 -147.19 ± 14.15 16 170 62 2 0 -327.18 ± 43.69
458493 ncm-dbt-01 581236 500 39 225 236 -135.76 ± 14.12 11 169 65 5 0 -301.33 ± 42.75
458492 ncm-dbt-04 569669 500 40 227 233 -136.56 ± 14.62 13 167 64 6 0 -298.62 ± 43.1
458491 ncm-dbt-05 582485 500 38 229 233 -139.81 ± 14.01 13 168 66 3 0 -309.64 ± 42.33
458490 ncm-dbt-02 590096 500 44 226 230 -132.54 ± 14.53 10 170 62 8 0 -293.29 ± 43.72
458489 ncm-dbt-03 584958 500 41 236 223 -143.07 ± 14.46 14 172 59 5 0 -318.25 ± 44.96
458488 ncm-dbt-01 584369 500 37 237 226 -147.19 ± 14.51 18 166 64 2 0 -321.19 ± 42.95
458487 ncm-dbt-02 587197 500 43 233 224 -138.99 ± 14.21 12 171 62 5 0 -309.64 ± 43.82
458486 ncm-dbt-05 582235 500 32 233 235 -148.02 ± 14.49 15 176 54 5 0 -333.32 ± 47.06
458485 ncm-dbt-04 568991 500 32 227 241 -143.07 ± 14.28 12 176 58 3 1 -327.18 ± 45.37
458484 ncm-dbt-03 583614 500 41 242 217 -148.02 ± 15.55 18 173 51 8 0 -324.17 ± 48.12
458483 ncm-dbt-01 583572 500 40 225 235 -134.95 ± 14.13 11 168 66 5 0 -298.62 ± 42.41
458482 ncm-dbt-05 580945 500 32 217 251 -134.95 ± 13.59 11 165 72 2 0 -298.62 ± 40.29
458481 ncm-dbt-04 568514 500 42 241 217 -146.36 ± 13.99 13 177 56 4 0 -333.32 ± 46.21
458480 ncm-dbt-03 586181 500 41 235 224 -142.25 ± 14.3 14 170 62 4 0 -315.35 ± 43.81
458479 ncm-dbt-02 585674 500 40 240 220 -147.19 ± 13.77 13 177 57 3 0 -336.46 ± 45.77
458478 ncm-dbt-01 583112 500 41 224 235 -133.34 ± 14.17 12 163 71 4 0 -290.66 ± 40.76
458477 ncm-dbt-04 568951 500 30 235 235 -151.34 ± 13.6 13 182 52 3 0 -352.8 ± 48.05
458476 ncm-dbt-02 580282 500 36 232 232 -143.89 ± 13.51 13 171 65 1 0 -324.17 ± 42.47
458475 ncm-dbt-05 583196 500 25 228 247 -149.68 ± 13.47 12 182 53 3 0 -349.43 ± 47.56
458474 ncm-dbt-03 584495 500 41 229 230 -137.37 ± 13.71 10 172 64 4 0 -309.64 ± 43.08
458473 ncm-dbt-01 582569 500 42 230 228 -137.37 ± 15.11 14 167 63 5 1 -301.33 ± 43.45
458472 ncm-dbt-04 566572 500 38 232 230 -142.25 ± 13.75 14 167 68 1 0 -315.35 ± 41.44
458471 ncm-dbt-03 584874 500 31 226 243 -143.07 ± 13.54 10 179 57 4 0 -330.23 ± 45.79
458470 ncm-dbt-02 587749 500 40 241 219 -148.02 ± 14.12 15 174 58 3 0 -333.32 ± 45.35
458469 ncm-dbt-05 580862 500 38 218 244 -130.94 ± 13.69 8 169 68 5 0 -293.29 ± 41.75
458468 ncm-dbt-01 585590 500 35 235 230 -147.19 ± 14.15 17 167 65 1 0 -324.17 ± 42.47
458467 ncm-dbt-03 583154 500 42 238 220 -143.89 ± 14.61 16 168 62 4 0 -315.35 ± 43.81
458466 ncm-dbt-04 570428 500 31 228 241 -144.71 ± 14.77 18 164 65 3 0 -312.48 ± 42.67
458465 ncm-dbt-02 586054 500 41 225 234 -134.15 ± 14.84 12 168 62 8 0 -293.29 ± 43.72
458464 ncm-dbt-05 585169 500 35 241 224 -152.18 ± 13.16 13 181 55 1 0 -356.21 ± 46.49
458463 ncm-dbt-01 583992 500 41 235 224 -142.25 ± 13.37 11 174 63 2 0 -324.17 ± 43.32

Commit

Commit ID b5781150ea8557e2030f8bc8b4eadede0ecec6bd
Author lonfom169
Date 2020-11-10 17:21:05 UTC
Increase reduction based on the number of best move changes. Thanks to Vizvezdenec for the PvNode idea and also to vondele the !PvNode idea. Passed STC: LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 19120 W: 1998 L: 1839 D: 15283 Ptnml(0-2): 76, 1445, 6375, 1572, 92 https://tests.stockfishchess.org/tests/view/5fa8af3e67cbf42301d6a6c9 Passed LTC: LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 75584 W: 3454 L: 3205 D: 68925 Ptnml(0-2): 54, 2832, 31771, 3081, 54 closes https://github.com/official-stockfish/Stockfish/pull/3224 Bench: 3595418
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