Dev Builds » 20231230-1001

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 06:56:28 585254 4000 1392 690 1918 +61.61 ± 5.03 3 163 973 851 10 +125.98 ± 10.86
ncm-dbt-02 06:56:29 588333 4010 1363 662 1985 +61.37 ± 5.13 5 176 946 869 9 +126.03 ± 11.05
ncm-dbt-03 06:55:26 588337 4000 1387 663 1950 +63.59 ± 5.05 3 162 953 872 10 +130.35 ± 10.99
ncm-dbt-04 06:56:20 570699 4006 1384 654 1968 +64.03 ± 5.08 2 170 937 884 10 +131.13 ± 11.1
ncm-dbt-05 06:56:29 585728 3984 1364 664 1956 +61.69 ± 5.08 2 173 949 859 9 +126.13 ± 11.02
20000 6890 3333 9777 +62.46 ± 2.27 15 844 4758 4335 48 +127.92 ± 4.92

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
375138 ncm-dbt-04 571793 6 1 0 5 +58.33 ± 98.71 0 0 2 1 0 +120.24 ± 264.77
375137 ncm-dbt-02 587113 10 3 3 4 -0.0 ± 99.06 0 1 3 1 0 -0.0 ± 217.03
375136 ncm-dbt-05 589112 484 168 85 231 +60.18 ± 14.97 1 22 113 105 1 +124.19 ± 32.1
375135 ncm-dbt-01 586054 500 173 94 233 +55.36 ± 14.53 0 26 120 103 1 +112.14 ± 31.13
375134 ncm-dbt-03 588302 500 171 83 246 +61.79 ± 14.14 0 19 127 101 3 +123.02 ± 29.98
375133 ncm-dbt-04 570669 500 162 82 256 +56.07 ± 14.83 0 27 118 103 2 +112.14 ± 31.42
375132 ncm-dbt-02 589625 500 161 85 254 +53.22 ± 14.42 0 26 123 100 1 +107.54 ± 30.7
375131 ncm-dbt-05 585717 500 168 80 252 +61.79 ± 13.85 0 18 128 102 2 +124.6 ± 29.8
375130 ncm-dbt-01 584243 500 175 89 236 +60.36 ± 13.93 0 20 125 104 1 +123.02 ± 30.3
375129 ncm-dbt-03 590224 500 171 71 258 +70.43 ± 13.47 0 14 123 112 1 +145.54 ± 30.38
375128 ncm-dbt-04 571712 500 173 85 242 +61.79 ± 14.68 1 23 113 113 0 +129.35 ± 32.14
375127 ncm-dbt-02 588984 500 177 86 237 +63.95 ± 14.09 1 17 123 108 1 +132.54 ± 30.53
375126 ncm-dbt-05 584916 500 173 82 245 +63.95 ± 13.21 0 15 129 106 0 +132.54 ± 29.53
375125 ncm-dbt-01 585674 500 169 86 245 +58.21 ± 14.25 0 22 125 101 2 +116.78 ± 30.34
375124 ncm-dbt-03 585759 500 176 82 242 +66.1 ± 13.45 0 16 124 110 0 +137.37 ± 30.31
375123 ncm-dbt-04 570829 500 167 80 253 +61.07 ± 14.65 0 25 114 110 1 +124.6 ± 31.99
375122 ncm-dbt-02 586520 500 153 72 275 +56.78 ± 14.6 0 25 121 102 2 +113.68 ± 30.97
375121 ncm-dbt-05 584706 500 177 80 243 +68.27 ± 14.12 0 20 113 117 0 +142.26 ± 32.1
375120 ncm-dbt-01 586562 500 173 80 247 +65.38 ± 14.56 2 16 121 109 2 +135.76 ± 30.83
375119 ncm-dbt-03 588430 500 167 80 253 +61.08 ± 14.52 1 22 116 111 0 +127.76 ± 31.68
375118 ncm-dbt-04 570148 500 160 79 261 +56.78 ± 14.86 0 27 117 104 2 +113.68 ± 31.56
375117 ncm-dbt-02 588515 500 175 86 239 +62.51 ± 15.37 1 27 105 116 1 +129.35 ± 33.34
375116 ncm-dbt-05 581943 500 165 69 266 +67.54 ± 14.23 0 20 115 114 1 +138.99 ± 31.79
375115 ncm-dbt-01 581485 500 175 87 238 +61.79 ± 13.85 0 20 122 108 0 +127.76 ± 30.73
375114 ncm-dbt-04 571070 500 182 92 226 +63.23 ± 13.63 0 18 124 108 0 +130.94 ± 30.38
375113 ncm-dbt-03 589539 500 182 77 241 +74.06 ± 14.6 0 19 110 118 3 +150.51 ± 32.56
375112 ncm-dbt-02 589497 500 166 85 249 +56.78 ± 14.19 0 23 124 102 1 +115.23 ± 30.51
375111 ncm-dbt-05 585000 500 177 92 231 +59.64 ± 14.59 1 20 125 101 3 +119.89 ± 30.32
375110 ncm-dbt-04 568196 500 180 79 241 +71.16 ± 14.08 0 19 111 120 0 +148.85 ± 32.4
375109 ncm-dbt-03 586520 500 179 91 230 +61.79 ± 14.68 1 21 119 107 2 +126.18 ± 31.22
375108 ncm-dbt-01 585928 500 175 80 245 +66.83 ± 15.02 1 24 104 121 0 +140.62 ± 33.53
375107 ncm-dbt-02 586012 500 167 89 244 +54.65 ± 15.53 2 27 114 105 2 +112.14 ± 32.0
375106 ncm-dbt-05 587240 500 164 80 256 +58.93 ± 14.96 0 28 111 110 1 +119.89 ± 32.44
375105 ncm-dbt-04 568593 500 186 82 232 +73.34 ± 14.15 1 14 117 116 2 +152.18 ± 31.35
375104 ncm-dbt-03 588260 500 167 93 240 +51.8 ± 14.88 1 28 117 104 0 +107.54 ± 31.57
375103 ncm-dbt-02 588558 500 179 77 244 +71.89 ± 13.96 1 14 118 116 1 +150.51 ± 31.19
375102 ncm-dbt-01 583531 500 173 89 238 +58.93 ± 13.58 0 17 134 97 2 +118.33 ± 28.9
375101 ncm-dbt-05 587197 500 172 96 232 +53.22 ± 14.95 0 30 115 104 1 +107.54 ± 31.86
375100 ncm-dbt-04 573284 500 173 75 252 +68.99 ± 14.14 0 17 121 109 3 +138.99 ± 30.8
375099 ncm-dbt-02 590181 500 182 79 239 +72.61 ± 13.69 0 16 115 119 0 +152.18 ± 31.7
375098 ncm-dbt-01 588558 500 179 85 236 +66.1 ± 14.03 0 18 122 108 2 +134.15 ± 30.68
375097 ncm-dbt-03 589668 500 174 86 240 +61.79 ± 14.41 0 23 117 109 1 +126.18 ± 31.53

Commit

Commit ID f388e4180950833a1f79e023c88ff2521c9583b2
Author Michael Chaly
Date 2023-12-30 10:01:32 UTC
Adjust value returned after TT cutoff Instead of returning value from TT in case of a fail high return mix between it and beta. Passed STC: https://tests.stockfishchess.org/tests/view/658465395457644dc98446c7 LLR: 2.93 (-2.94,2.94) <0.00,2.00> Total: 220704 W: 56404 L: 55811 D: 108489 Ptnml(0-2): 750, 26214, 55921, 26627, 840 Passed LTC: https://tests.stockfishchess.org/tests/view/6585c3f55457644dc9845db9 LLR: 2.97 (-2.94,2.94) <0.50,2.50> Total: 124980 W: 31169 L: 30658 D: 63153 Ptnml(0-2): 57, 14147, 33603, 14594, 89 closes https://github.com/official-stockfish/Stockfish/pull/4934 Bench: 1191093
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