Dev Builds » 20250118-1932

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 06:53:27 584452 4016 1552 532 1932 +90.22 ± 4.83 1 81 843 1063 20 +190.16 ± 11.65
ncm-dbt-02 06:53:27 586604 3990 1539 541 1910 +88.79 ± 4.93 4 94 808 1078 11 +189.34 ± 11.95
ncm-dbt-03 06:53:03 586179 4006 1549 526 1931 +90.73 ± 4.9 3 94 792 1105 9 +194.45 ± 12.08
ncm-dbt-04 06:52:21 570804 4000 1522 553 1925 +85.87 ± 5.05 2 114 817 1047 20 +179.68 ± 11.9
ncm-dbt-05 06:53:23 585547 3988 1549 544 1895 +89.48 ± 4.95 3 96 802 1079 14 +190.15 ± 12.0
20000 7711 2696 9593 +89.02 ± 2.21 13 479 4062 5372 74 +188.72 ± 5.33

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
396593 ncm-dbt-03 585084 6 2 0 4 +120.22 ± 109.7 0 0 1 2 0 +279.24 ± 576.89 ↓
396592 ncm-dbt-01 586097 16 7 3 6 +88.68 ± 65.24 0 0 4 4 0 +190.76 ± 189.19 ↓
396591 ncm-dbt-05 581402 488 186 74 228 +81.19 ± 14.49 1 14 102 126 1 +172.35 ± 33.83 ↓
396590 ncm-dbt-02 588600 490 192 76 222 +83.84 ± 14.37 0 15 101 127 2 +175.13 ± 34.01 ↓
396589 ncm-dbt-04 572598 500 184 58 258 +89.48 ± 14.3 0 13 102 131 4 +185.33 ± 33.81 ↓
396588 ncm-dbt-03 586816 500 195 81 224 +80.63 ± 14.09 0 17 102 131 0 +171.02 ± 33.87 ↓
396587 ncm-dbt-01 584076 500 194 66 240 +90.97 ± 13.72 0 13 96 141 0 +196.45 ± 34.93 ↓
396586 ncm-dbt-05 584537 500 200 74 226 +89.48 ± 13.69 0 13 98 139 0 +192.71 ± 34.55 ↓
396585 ncm-dbt-02 586943 500 199 60 241 +99.2 ± 12.51 0 4 104 141 1 +215.85 ± 32.92 ↓
396584 ncm-dbt-04 568395 500 186 73 241 +79.9 ± 14.36 0 16 108 123 3 +164.07 ± 32.83 ↓
396583 ncm-dbt-01 582611 500 195 59 246 +96.94 ± 13.33 0 9 97 143 1 +209.91 ± 34.63 ↓
396582 ncm-dbt-03 585632 500 185 68 247 +82.83 ± 14.14 0 17 99 134 0 +176.33 ± 34.4 ↓
396581 ncm-dbt-05 586054 500 190 70 240 +85.04 ± 14.05 0 14 104 130 2 +178.11 ± 33.48 ↓
396580 ncm-dbt-02 584832 500 193 57 250 +96.94 ± 12.66 0 5 105 139 1 +209.91 ± 32.83 ↓
396579 ncm-dbt-03 586943 500 186 58 256 +90.97 ± 13.08 1 5 110 133 1 +196.45 ± 32.02 ↓
396578 ncm-dbt-01 586266 500 201 69 230 +93.95 ± 14.07 0 11 100 135 4 +196.45 ± 34.12 ↓
396577 ncm-dbt-04 573082 500 201 73 226 +90.96 ± 14.32 0 13 100 133 4 +189.0 ± 34.18 ↓
396576 ncm-dbt-05 584579 500 191 57 252 +95.44 ± 13.63 1 8 98 142 1 +207.95 ± 34.43 ↓
396575 ncm-dbt-02 583992 500 193 75 232 +83.57 ± 13.87 0 13 108 127 2 +174.55 ± 32.75 ↓
396574 ncm-dbt-04 571752 500 189 85 226 +73.33 ± 14.15 0 18 111 120 1 +152.18 ± 32.38 ↓
396573 ncm-dbt-03 583908 500 205 58 237 +105.25 ± 13.55 1 7 87 154 1 +234.38 ± 36.71 ↓
396572 ncm-dbt-01 584664 500 187 57 256 +92.45 ± 13.59 0 9 105 133 3 +194.57 ± 33.11 ↓
396571 ncm-dbt-05 584453 500 202 76 222 +89.48 ± 13.84 0 11 105 131 3 +187.16 ± 33.21 ↓
396570 ncm-dbt-02 588430 500 184 75 241 +76.98 ± 14.55 1 16 108 123 2 +160.64 ± 32.85 ↓
396569 ncm-dbt-03 586985 500 191 62 247 +91.71 ± 14.04 0 12 100 135 3 +192.71 ± 34.15 ↓
396568 ncm-dbt-04 569949 500 193 65 242 +90.96 ± 14.47 0 17 89 143 1 +194.57 ± 36.29 ↓
396567 ncm-dbt-01 581693 500 195 69 236 +89.48 ± 13.38 0 8 111 128 3 +187.16 ± 31.99 ↓
396566 ncm-dbt-05 585253 500 192 60 248 +93.95 ± 13.92 0 11 99 137 3 +198.34 ± 34.31 ↓
396565 ncm-dbt-02 587113 500 197 67 236 +92.46 ± 14.65 1 15 88 145 1 +200.24 ± 36.52 ↓
396564 ncm-dbt-03 585464 500 187 66 247 +85.78 ± 14.07 0 14 103 131 2 +179.9 ± 33.65 ↓
396563 ncm-dbt-01 584748 500 191 75 234 +82.1 ± 13.83 1 10 113 124 2 +172.78 ± 31.83 ↓
396562 ncm-dbt-04 567799 500 187 61 252 +89.48 ± 14.44 0 14 100 132 4 +185.33 ± 34.19 ↓
396561 ncm-dbt-05 581860 500 189 63 248 +89.48 ± 14.88 0 17 94 135 4 +185.33 ± 35.32 ↓
396560 ncm-dbt-02 584285 500 180 62 258 +83.57 ± 14.74 1 17 96 135 1 +178.11 ± 34.94 ↓
396559 ncm-dbt-01 583740 500 195 66 239 +91.71 ± 13.57 0 9 106 132 3 +192.71 ± 32.93 ↓
396558 ncm-dbt-03 586054 500 194 71 235 +87.26 ± 13.64 1 10 104 135 0 +189.0 ± 33.39 ↓
396557 ncm-dbt-04 571793 500 192 67 241 +88.74 ± 14.43 2 11 98 138 1 +192.71 ± 34.55 ↓
396556 ncm-dbt-02 588643 500 201 69 230 +93.95 ± 13.77 1 9 98 141 1 +204.07 ± 34.47 ↓
396555 ncm-dbt-05 596241 500 199 70 231 +91.71 ± 13.42 1 8 102 139 0 +200.24 ± 33.67 ↓
396554 ncm-dbt-04 571070 500 190 71 239 +84.3 ± 13.73 0 12 109 127 2 +176.33 ± 32.55 ↓
396553 ncm-dbt-03 588728 500 204 62 234 +101.46 ± 14.01 0 12 86 150 2 +219.87 ± 36.98 ↓
396552 ncm-dbt-01 586181 500 187 68 245 +84.3 ± 14.03 0 12 111 123 4 +172.78 ± 32.21 ↓

Commit

Commit ID 4c2241089d4650e55a143659fe8002a392a91320
Author Disservin
Date 2025-01-18 19:32:00 UTC
Remove addition of 1ms to all timestamps The +1 was a quick fix to avoid the division by zero, a more correct approach is to use 1ms as the minimum reported timestamp to avoid a division by zero. Later timestamps no longer include an additional 1ms. closes https://github.com/official-stockfish/Stockfish/pull/5778 No functional change
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