Dev Builds » 20221224-1501

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 06:59:00 584342 4000 1211 873 1916 +29.43 ± 5.08 4 280 1096 614 6 +58.93 ± 10.2
ncm-dbt-02 06:59:12 586500 4000 1128 892 1980 +20.52 ± 5.11 2 333 1096 565 4 +40.84 ± 10.22
ncm-dbt-03 06:58:42 584258 4000 1194 862 1944 +28.9 ± 5.15 6 293 1066 633 2 +58.93 ± 10.38
ncm-dbt-04 06:58:53 568737 4000 1145 865 1990 +24.36 ± 5.26 7 328 1046 616 3 +49.67 ± 10.51
ncm-dbt-05 06:58:47 580137 4000 1152 842 2006 +26.98 ± 5.16 7 300 1071 620 2 +55.18 ± 10.36
20000 5830 4334 9836 +26.04 ± 2.3 26 1534 5375 3048 17 +52.69 ± 4.62

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
430995 ncm-dbt-05 582152 500 143 101 256 +29.25 ± 13.23 0 29 150 71 0 +58.93 ± 27.08 ↓
430994 ncm-dbt-01 583992 500 150 104 246 +32.05 ± 14.9 0 38 130 80 2 +61.79 ± 29.86 ↓
430993 ncm-dbt-02 586223 500 143 105 252 +26.45 ± 14.78 0 40 134 74 2 +50.38 ± 29.35 ↓
430992 ncm-dbt-04 569310 500 140 104 256 +25.06 ± 13.89 0 36 142 72 0 +50.38 ± 28.27 ↓
430991 ncm-dbt-03 583824 500 152 105 243 +32.76 ± 15.07 2 34 130 83 1 +67.55 ± 29.85 ↓
430990 ncm-dbt-05 573649 500 152 107 241 +31.35 ± 14.6 0 36 135 77 2 +60.36 ± 29.19 ↓
430989 ncm-dbt-01 584622 500 167 113 220 +37.67 ± 14.22 0 31 135 83 1 +74.79 ± 29.13 ↓
430988 ncm-dbt-02 586562 500 148 111 241 +25.76 ± 14.73 0 41 132 76 1 +50.38 ± 29.62 ↓
430987 ncm-dbt-04 566651 500 152 107 241 +31.36 ± 14.6 1 35 132 82 0 +64.66 ± 29.59 ↓
430986 ncm-dbt-03 585548 500 159 105 236 +37.67 ± 14.22 0 32 132 86 0 +76.25 ± 29.54 ↓
430985 ncm-dbt-05 579331 500 155 106 239 +34.16 ± 15.04 2 34 127 87 0 +71.89 ± 30.24 ↓
430984 ncm-dbt-04 568395 500 144 101 255 +29.95 ± 14.24 0 35 138 76 1 +58.93 ± 28.79 ↓
430983 ncm-dbt-01 585548 500 150 112 238 +26.46 ± 14.13 0 37 138 75 0 +53.22 ± 28.81 ↓
430982 ncm-dbt-03 579372 500 149 112 239 +25.76 ± 13.94 0 36 141 73 0 +51.8 ± 28.4 ↓
430981 ncm-dbt-02 585970 500 150 116 234 +23.66 ± 14.45 0 41 134 75 0 +47.55 ± 29.36 ↓
430980 ncm-dbt-05 579992 500 142 115 243 +18.78 ± 14.6 1 42 136 71 0 +39.08 ± 29.11 ↓
430979 ncm-dbt-04 568315 500 146 115 239 +21.57 ± 14.68 1 40 137 71 1 +43.3 ± 28.97 ↓
430978 ncm-dbt-03 586012 500 147 121 232 +18.08 ± 14.8 0 47 130 73 0 +36.26 ± 29.9 ↓
430977 ncm-dbt-01 583992 500 161 117 222 +30.65 ± 14.02 0 34 138 78 0 +61.79 ± 28.77 ↓
430976 ncm-dbt-02 581485 500 153 112 235 +28.55 ± 14.14 0 36 137 77 0 +57.5 ± 28.93 ↓
430975 ncm-dbt-05 577356 500 135 95 270 +27.86 ± 15.25 2 39 126 83 0 +58.93 ± 30.4 ↓
430974 ncm-dbt-04 572679 500 137 107 256 +20.87 ± 15.01 1 44 129 76 0 +43.3 ± 30.02 ↓
430973 ncm-dbt-01 584748 500 154 110 236 +30.65 ± 14.02 1 30 144 74 1 +61.79 ± 27.93 ↓
430972 ncm-dbt-03 585928 500 137 102 261 +24.36 ± 15.01 0 44 128 77 1 +47.55 ± 30.15 ↓
430971 ncm-dbt-02 587749 500 120 104 276 +11.12 ± 13.98 1 42 147 60 0 +23.66 ± 27.68 ↓
430970 ncm-dbt-05 577315 500 144 102 254 +29.25 ± 14.59 0 39 130 81 0 +58.93 ± 29.87 ↓
430969 ncm-dbt-04 567601 500 146 108 246 +26.46 ± 15.64 1 45 120 83 1 +53.22 ± 31.17 ↓
430968 ncm-dbt-01 581111 500 141 86 273 +38.37 ± 15.04 1 34 125 89 1 +77.71 ± 30.5 ↓
430967 ncm-dbt-03 584832 500 143 95 262 +33.46 ± 13.94 0 32 138 80 0 +67.55 ± 28.74 ↓
430966 ncm-dbt-02 587325 500 139 113 248 +18.08 ± 14.8 1 44 133 72 0 +37.67 ± 29.51 ↓
430965 ncm-dbt-05 580655 500 136 115 249 +14.6 ± 14.78 2 43 137 68 0 +32.05 ± 29.0 ↓
430964 ncm-dbt-04 568077 500 144 119 237 +17.39 ± 15.37 2 46 127 75 0 +37.67 ± 30.28 ↓
430963 ncm-dbt-03 581818 500 151 114 235 +25.76 ± 15.35 3 38 128 81 0 +56.07 ± 30.14 ↓
430962 ncm-dbt-01 583950 500 150 122 228 +19.48 ± 14.39 2 36 145 66 1 +40.48 ± 27.9 ↓
430961 ncm-dbt-02 587962 500 132 115 253 +11.82 ± 13.63 0 42 149 59 0 +23.66 ± 27.4 ↓
430960 ncm-dbt-05 590653 500 145 101 254 +30.65 ± 14.55 0 38 130 82 0 +61.79 ± 29.86 ↓
430959 ncm-dbt-04 568872 500 136 104 260 +22.27 ± 15.48 1 47 121 81 0 +46.13 ± 31.04 ↓
430958 ncm-dbt-03 586731 500 156 108 236 +33.46 ± 14.08 1 30 139 80 0 +68.99 ± 28.6 ↓
430957 ncm-dbt-01 586774 500 138 109 253 +20.17 ± 14.05 0 40 141 69 0 +40.48 ± 28.44 ↓
430956 ncm-dbt-02 588728 500 143 116 241 +18.78 ± 14.98 0 47 130 72 1 +36.26 ± 29.9 ↓

Commit

Commit ID 64656f8583dde88d558d5367b4cf8fc136c3214a
Author Muzhen Gaming
Date 2022-12-24 15:01:50 UTC
Add double bonus for prior countermove fail low Add a double extra bonus for particularly bad fail low cases. Original idea by Yoshie2000. STC: https://tests.stockfishchess.org/tests/view/63a2f0d86b5bf07ac7fad543 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 146488 W: 38992 L: 38532 D: 68964 Ptnml(0-2): 385, 16036, 39965, 16450, 408 LTC: https://tests.stockfishchess.org/tests/view/63a3eaeb6b5bf07ac7fafdec LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 103992 W: 27853 L: 27423 D: 48716 Ptnml(0-2): 41, 10029, 31435, 10441, 50 closes https://github.com/official-stockfish/Stockfish/pull/4302 Bench: 3801857
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