Dev Builds » 20240719-0641

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 06:54:32 584892 4026 1508 576 1942 +81.91 ± 4.94 1 118 853 1030 11 +171.91 ± 11.63
ncm-dbt-02 06:54:39 577041 4006 1504 558 1944 +83.62 ± 5.06 1 131 804 1055 12 +175.79 ± 12.01
ncm-dbt-03 06:54:42 576065 3980 1484 610 1886 +77.56 ± 5.03 1 130 866 980 13 +161.14 ± 11.55
ncm-dbt-04 06:54:02 554958 3998 1531 587 1880 +83.61 ± 4.94 0 109 854 1019 17 +174.43 ± 11.61
ncm-dbt-05 06:54:12 575091 3990 1528 550 1912 +86.93 ± 4.96 1 105 820 1053 16 +182.93 ± 11.87
20000 7555 2881 9564 +82.72 ± 2.23 4 593 4197 5137 69 +173.18 ± 5.24

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
373136 ncm-dbt-01 586646 26 11 5 10 +81.63 ± 64.15 0 1 5 7 0 +173.46 ± 173.59 ↓
373135 ncm-dbt-03 587749 158 56 30 72 +57.7 ± 24.89 0 7 39 33 0 +118.77 ± 54.8 ↓
373134 ncm-dbt-04 567284 178 73 28 77 +89.78 ± 21.76 0 2 41 45 1 +188.26 ± 52.57 ↓
373133 ncm-dbt-05 584622 174 70 25 79 +91.94 ± 23.67 0 5 32 50 0 +198.93 ± 61.32 ↓
373132 ncm-dbt-02 582611 182 64 23 95 +79.63 ± 23.2 0 6 38 47 0 +168.64 ± 55.94 ↓
373131 ncm-dbt-01 585717 500 178 78 244 +70.44 ± 14.48 1 18 112 118 1 +147.19 ± 32.24 ↓
373130 ncm-dbt-03 587579 500 178 68 254 +77.71 ± 14.0 0 17 106 127 0 +164.07 ± 33.19 ↓
373129 ncm-dbt-04 565744 500 187 78 235 +76.97 ± 13.98 0 15 113 120 2 +158.93 ± 31.99 ↓
373128 ncm-dbt-02 585084 500 198 67 235 +93.2 ± 13.91 0 11 100 136 3 +196.45 ± 34.12 ↓
373127 ncm-dbt-05 583028 500 201 56 243 +103.73 ± 13.87 0 10 88 149 3 +223.94 ± 36.53 ↓
373126 ncm-dbt-01 584748 500 188 70 242 +83.57 ± 14.16 0 15 104 129 2 +174.55 ± 33.5 ↓
373125 ncm-dbt-03 587537 500 192 87 221 +74.06 ± 14.03 0 17 112 120 1 +153.86 ± 32.2 ↓
373124 ncm-dbt-04 567284 500 186 69 245 +82.83 ± 14.0 0 13 110 124 3 +171.02 ± 32.42 ↓
373123 ncm-dbt-02 590181 500 190 73 237 +82.83 ± 14.0 0 15 104 130 1 +174.55 ± 33.5 ↓
373122 ncm-dbt-05 580447 500 185 56 259 +91.71 ± 13.73 0 12 98 139 1 +196.45 ± 34.53 ↓
373121 ncm-dbt-01 584243 500 190 70 240 +85.04 ± 13.6 0 13 104 133 0 +181.7 ± 33.45 ↓
373120 ncm-dbt-03 587792 500 198 86 216 +79.17 ± 14.48 1 14 110 122 3 +164.07 ± 32.48 ↓
373119 ncm-dbt-04 567284 500 205 66 229 +99.2 ± 14.45 0 13 89 144 4 +209.91 ± 36.34 ↓
373118 ncm-dbt-05 583656 500 200 72 228 +90.96 ± 13.72 0 10 105 132 3 +190.85 ± 33.16 ↓
373117 ncm-dbt-02 587282 500 191 59 250 +93.95 ± 13.61 0 11 97 141 1 +202.15 ± 34.7 ↓
373116 ncm-dbt-01 584958 500 187 67 246 +85.04 ± 13.13 0 9 113 127 1 +179.9 ± 31.72 ↓
373115 ncm-dbt-03 588558 500 181 60 259 +85.78 ± 14.22 0 17 95 138 0 +183.51 ± 35.13 ↓
373114 ncm-dbt-04 567482 500 190 80 230 +77.71 ± 13.25 0 12 116 122 0 +164.07 ± 31.39 ↓
373113 ncm-dbt-02 587877 500 183 85 232 +68.99 ± 14.84 0 23 108 117 2 +140.62 ± 32.9 ↓
373112 ncm-dbt-05 583070 500 192 68 240 +88.0 ± 14.12 0 13 103 131 3 +183.51 ± 33.63 ↓
373111 ncm-dbt-01 582444 500 196 69 235 +90.22 ± 14.16 0 13 100 134 3 +189.0 ± 34.18 ↓
373110 ncm-dbt-03 586054 500 183 81 236 +71.88 ± 14.53 0 21 107 121 1 +148.85 ± 33.05 ↓
373109 ncm-dbt-02 588686 500 189 80 231 +76.97 ± 14.13 0 17 108 124 1 +160.64 ± 32.85 ↓
373108 ncm-dbt-05 585548 500 195 67 238 +90.96 ± 13.87 0 12 100 136 2 +192.71 ± 34.15 ↓
373107 ncm-dbt-04 567086 500 196 69 235 +90.22 ± 13.07 0 8 108 133 1 +192.71 ± 32.52 ↓
373106 ncm-dbt-01 582819 500 185 80 235 +74.06 ± 13.89 0 15 117 116 2 +152.18 ± 31.35 ↓
373105 ncm-dbt-03 585717 500 188 79 233 +76.97 ± 14.13 0 15 114 118 3 +157.24 ± 31.83 ↓
373104 ncm-dbt-04 565941 500 193 74 233 +84.3 ± 14.47 0 15 105 126 4 +172.78 ± 33.32 ↓
373103 ncm-dbt-02 587240 500 178 68 254 +77.7 ± 14.29 0 18 105 126 1 +162.35 ± 33.37 ↓
373102 ncm-dbt-05 582819 500 191 68 241 +87.26 ± 14.4 0 17 94 138 1 +185.33 ± 35.32 ↓
373101 ncm-dbt-01 584285 500 188 66 246 +86.52 ± 13.63 0 13 102 135 0 +185.33 ± 33.81 ↓
373100 ncm-dbt-04 453037 500 184 69 247 +81.36 ± 14.68 0 20 96 133 1 +171.02 ± 34.92 ↓
373099 ncm-dbt-02 492772 500 187 52 261 +96.19 ± 14.41 0 15 87 146 2 +206.01 ± 36.74 ↓
373098 ncm-dbt-05 500816 500 179 85 236 +66.1 ± 13.6 0 17 122 111 0 +137.37 ± 30.65 ↓
373097 ncm-dbt-03 480538 500 184 80 236 +73.33 ± 13.72 0 14 120 114 2 +150.51 ± 30.84 ↓
373096 ncm-dbt-04 573487 320 117 54 149 +69.3 ± 17.48 0 11 76 72 1 +142.05 ± 39.02 ↓
373095 ncm-dbt-05 591814 316 115 53 148 +69.06 ± 18.46 1 9 78 67 3 +138.89 ± 38.32 ↓
373094 ncm-dbt-02 591642 324 124 51 149 +79.65 ± 19.59 1 15 57 88 1 +168.67 ± 45.2 ↓
373093 ncm-dbt-03 593066 322 124 39 159 +93.94 ± 17.94 0 8 63 87 3 +195.19 ± 43.22 ↓
373092 ncm-dbt-01 588174 500 185 71 244 +80.63 ± 14.94 0 21 96 131 2 +167.53 ± 34.91 ↓

Commit

Commit ID a8401e803d37ec7dbf0650f4d79475214655477e
Author Michael Chaly
Date 2024-07-19 06:41:38 UTC
Adjust bonus to move that caused a fail low This is an elo gainer and simultaneously a minor logical fix to bonuses that caused a fail low. It increases maximum of statscore based subtraction - but disallows negative bonuses. Passed STC: https://tests.stockfishchess.org/tests/view/66955e6f4ff211be9d4ec063 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 44640 W: 11805 L: 11472 D: 21363 Ptnml(0-2): 166, 5178, 11335, 5439, 202 Passed LTC: https://tests.stockfishchess.org/tests/view/66963fde4ff211be9d4ec190 LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 72288 W: 18478 L: 18082 D: 35728 Ptnml(0-2): 50, 7919, 19825, 8285, 65 closes https://github.com/official-stockfish/Stockfish/pull/5494 Bench: 1477054
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