Dev Builds » 20240509-0652

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 06:50:07 583985 3996 1506 610 1880 +79.25 ± 5.03 0 130 857 996 15 +164.48 ± 11.61
ncm-dbt-02 06:47:36 586733 4000 1480 589 1931 +78.71 ± 5.06 0 139 844 1004 13 +163.64 ± 11.71
ncm-dbt-03 06:48:58 586129 4000 1516 579 1905 +82.93 ± 5.02 1 121 834 1028 16 +173.22 ± 11.78
ncm-dbt-04 06:50:04 571167 4012 1512 615 1885 +79.01 ± 5.05 2 128 865 993 18 +163.72 ± 11.56
ncm-dbt-05 06:48:16 585448 3992 1456 565 1971 +78.87 ± 4.95 1 113 893 972 17 +163.37 ± 11.33
20000 7470 2958 9572 +79.75 ± 2.25 4 631 4293 4993 79 +165.67 ± 5.18

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
383658 ncm-dbt-04 573123 12 3 2 7 +29.01 ± 131.8 0 2 1 3 0 +58.45 ± 350.58
383657 ncm-dbt-05 582485 492 179 68 245 +79.76 ± 14.37 0 16 105 123 2 +165.4 ± 33.32
383656 ncm-dbt-01 585717 496 190 76 230 +81.3 ± 13.88 0 14 107 126 1 +170.87 ± 32.94
383655 ncm-dbt-03 584537 500 172 85 243 +61.07 ± 13.09 0 15 133 102 0 +126.18 ± 28.95
383654 ncm-dbt-02 587834 500 179 61 260 +83.57 ± 13.71 0 14 104 132 0 +178.11 ± 33.48
383653 ncm-dbt-04 572235 500 195 78 227 +82.83 ± 14.44 0 15 107 124 4 +169.27 ± 32.98
383652 ncm-dbt-05 586985 500 183 74 243 +76.97 ± 13.38 0 9 127 110 4 +155.54 ± 29.48
383651 ncm-dbt-01 582819 500 180 72 248 +76.25 ± 14.1 0 17 109 123 1 +158.93 ± 32.69
383650 ncm-dbt-03 586901 500 190 90 220 +70.43 ± 14.34 0 18 117 112 3 +142.26 ± 31.44
383649 ncm-dbt-02 582945 500 186 73 241 +79.9 ± 14.07 0 15 109 124 2 +165.8 ± 32.64
383648 ncm-dbt-04 571190 500 196 84 220 +79.17 ± 13.14 0 10 119 120 1 +165.8 ± 30.8
383647 ncm-dbt-05 587028 500 185 75 240 +77.7 ± 14.29 0 16 111 120 3 +158.93 ± 32.34
383646 ncm-dbt-01 583656 500 187 76 237 +78.43 ± 14.74 0 20 101 127 2 +162.35 ± 34.05
383645 ncm-dbt-03 585928 500 195 70 235 +88.74 ± 14.72 1 14 97 135 3 +187.16 ± 34.76
383644 ncm-dbt-02 583740 500 197 76 227 +85.78 ± 13.92 0 13 105 130 2 +179.9 ± 33.27
383643 ncm-dbt-04 567482 500 183 81 236 +71.88 ± 14.94 0 23 104 121 2 +147.19 ± 33.54
383642 ncm-dbt-05 586943 500 194 67 239 +90.22 ± 13.86 0 10 107 129 4 +187.16 ± 32.81
383641 ncm-dbt-01 586266 500 189 77 234 +79.17 ± 14.19 0 16 108 124 2 +164.07 ± 32.83
383640 ncm-dbt-02 587579 500 194 78 228 +82.1 ± 14.42 0 17 102 129 2 +171.02 ± 33.87
383639 ncm-dbt-04 571391 500 182 74 244 +76.25 ± 15.09 1 19 104 123 3 +157.24 ± 33.54
383638 ncm-dbt-03 587792 500 190 62 248 +90.96 ± 14.02 0 13 98 137 2 +192.71 ± 34.55
383637 ncm-dbt-05 583489 500 178 78 244 +70.44 ± 14.62 1 20 107 122 0 +148.85 ± 33.05
383636 ncm-dbt-01 585590 500 186 61 253 +88.74 ± 13.98 0 14 98 137 1 +189.0 ± 34.56
383635 ncm-dbt-02 588686 500 189 77 234 +79.17 ± 14.76 0 21 97 131 1 +165.8 ± 34.73
383634 ncm-dbt-04 571150 500 186 81 233 +74.06 ± 14.03 1 15 112 122 0 +157.24 ± 32.18
383633 ncm-dbt-03 586308 500 197 72 231 +88.74 ± 14.57 0 16 96 135 3 +185.33 ± 34.95
383632 ncm-dbt-05 581070 500 169 75 256 +66.1 ± 13.89 0 18 121 110 1 +135.76 ± 30.83
383631 ncm-dbt-02 588728 500 177 79 244 +68.99 ± 14.28 0 18 119 110 3 +138.99 ± 31.13
383630 ncm-dbt-04 571351 500 184 73 243 +78.43 ± 15.15 0 23 95 130 2 +162.35 ± 35.05
383629 ncm-dbt-03 585717 500 190 69 241 +85.78 ± 14.22 0 17 95 138 0 +183.51 ± 35.13
383628 ncm-dbt-01 582444 500 181 84 235 +68.27 ± 13.83 0 17 120 112 1 +140.62 ± 30.95
383627 ncm-dbt-05 584201 500 180 67 253 +79.9 ± 13.92 0 13 114 120 3 +164.07 ± 31.75
383626 ncm-dbt-02 586350 500 174 77 249 +68.27 ± 15.34 0 27 101 120 2 +138.99 ± 33.98
383625 ncm-dbt-03 585885 500 184 67 249 +82.83 ± 14.44 0 17 101 130 2 +172.78 ± 34.05
383624 ncm-dbt-01 582527 500 206 80 214 +89.48 ± 14.44 0 14 100 132 4 +185.33 ± 34.19
383623 ncm-dbt-04 570228 500 186 69 245 +82.83 ± 13.7 0 12 111 125 2 +172.78 ± 32.21
383622 ncm-dbt-05 591383 500 188 61 251 +90.22 ± 13.39 0 11 101 138 0 +194.57 ± 33.94
383621 ncm-dbt-02 588004 500 184 68 248 +82.1 ± 13.83 0 14 107 128 1 +172.78 ± 32.96
383620 ncm-dbt-01 582861 500 187 84 229 +72.61 ± 14.41 0 18 114 115 3 +147.19 ± 31.9
383619 ncm-dbt-03 585970 500 198 64 238 +95.44 ± 13.94 0 11 97 139 3 +202.15 ± 34.7
383618 ncm-dbt-04 572356 500 197 73 230 +88.0 ± 13.66 0 9 112 125 4 +181.7 ± 31.89

Commit

Commit ID 3b4ddf4ae6362ddef063cc644d1466754015482e
Author Michael Chaly
Date 2024-05-09 06:52:06 UTC
Simplify away conthist 3 from statscore Following previous elo gainer that gained by making conthist 3 less important in pruning this patch simplifies away this history from calculation of statscore. Passed STC: https://tests.stockfishchess.org/tests/view/6637aa7e9819650825aa93e0 LLR: 3.00 (-2.94,2.94) <-1.75,0.25> Total: 35392 W: 9352 L: 9120 D: 16920 Ptnml(0-2): 141, 4145, 8888, 4385, 137 Passed LTC: https://tests.stockfishchess.org/tests/view/66383cd8493aaaf4b7ea90c5 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 33948 W: 8714 L: 8503 D: 16731 Ptnml(0-2): 39, 3701, 9270, 3938, 26 closes https://github.com/official-stockfish/Stockfish/pull/5220 Bench: 2508571
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