Dev Builds » 20230202-1700

You are viewing an old NCM Stockfish dev build test. You may find the most recent dev build tests using Stockfish 15 as the baseline here.

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 14. 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 04:59:38 1110512 1668 699 137 832 +121.82 ± 7.5 0 25 238 555 16 +272.19 ± 22.14
ncm-dbt-02 05:00:15 1229905 1658 680 164 814 +111.84 ± 7.57 0 25 279 509 16 +242.53 ± 20.4
ncm-dbt-03 05:00:24 1231649 1670 685 160 825 +113.05 ± 7.48 0 27 268 528 12 +248.73 ± 20.84
ncm-dbt-04 04:59:44 1227037 1666 656 154 856 +108.04 ± 7.44 0 27 287 509 10 +235.78 ± 20.11
ncm-dbt-05 04:59:28 1232686 1666 684 160 822 +113.11 ± 7.35 0 24 271 528 10 +250.23 ± 20.71
ncm-dbt-06 05:02:02 1217628 1672 680 157 835 +112.45 ± 7.42 0 26 272 527 11 +247.66 ± 20.68
ncm-et-3 06:24:20 1306699 1664 665 157 842 +109.56 ± 7.71 1 31 272 515 13 +238.74 ± 20.69
ncm-et-4 06:24:14 1307179 1670 684 166 820 +111.44 ± 7.8 0 32 272 512 19 +239.53 ± 20.69
ncm-et-9 06:24:17 1301584 1664 672 177 815 +106.58 ± 7.89 1 32 289 491 19 +226.68 ± 20.06
ncm-et-10 06:23:25 1293630 1672 694 160 818 +114.98 ± 7.6 0 27 265 527 17 +251.0 ± 20.96
ncm-et-13 06:22:19 1313007 1658 674 143 841 +115.33 ± 7.73 1 29 252 532 15 +253.96 ± 21.51
ncm-et-15 06:24:10 1298992 1672 670 176 826 +105.81 ± 7.88 3 32 283 504 14 +228.99 ± 20.28
20000 8143 1911 9946 +111.98 ± 2.2 6 337 3248 6237 172 +244.43 ± 5.97

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
189793 ncm-dbt-02 1234827 158 69 10 79 +136.32 ± 24.04 0 1 21 54 3 +307.44 ± 77.19
189792 ncm-dbt-04 1240136 166 62 15 89 +101.13 ± 22.06 0 2 32 49 0 +223.06 ± 60.84
189791 ncm-dbt-05 1219438 166 65 13 88 +112.61 ± 23.87 0 3 26 53 1 +248.78 ± 68.63
189790 ncm-dbt-06 1241496 172 77 15 80 +131.12 ± 25.52 0 3 22 57 4 +284.48 ± 75.13
189789 ncm-dbt-01 1128818 168 71 21 76 +106.62 ± 23.68 0 2 32 48 2 +225.71 ± 60.88
189788 ncm-dbt-03 1226696 170 69 18 83 +107.53 ± 21.78 0 0 36 47 2 +228.31 ± 55.6
189198 ncm-dbt-04 1215309 500 196 49 255 +105.25 ± 13.22 0 7 91 150 2 +230.16 ± 35.78
189197 ncm-dbt-02 1215879 500 196 55 249 +100.7 ± 13.2 0 8 94 147 1 +219.87 ± 35.19
189196 ncm-dbt-06 1217265 500 196 47 257 +106.77 ± 12.88 0 6 90 153 1 +236.51 ± 35.94
189195 ncm-dbt-05 1238673 500 203 49 248 +110.6 ± 13.05 0 6 86 156 2 +245.2 ± 36.85
189194 ncm-dbt-03 1244886 500 200 44 256 +112.14 ± 13.56 0 7 84 155 4 +245.2 ± 37.37
189193 ncm-dbt-01 1105130 500 206 37 257 +122.24 ± 12.94 0 6 71 171 2 +280.42 ± 40.83
189192 ncm-dbt-04 1217266 500 193 45 262 +106.01 ± 14.51 0 11 86 147 6 +223.94 ± 36.98
189191 ncm-dbt-05 1234135 500 201 51 248 +107.54 ± 13.56 0 9 84 155 2 +236.51 ± 37.42
189190 ncm-dbt-02 1218990 500 202 49 249 +109.83 ± 14.06 0 9 84 152 5 +236.51 ± 37.42
189189 ncm-dbt-06 1202139 500 199 47 254 +109.07 ± 13.73 0 9 83 155 3 +238.66 ± 37.66
189188 ncm-dbt-03 1225615 500 203 47 250 +112.14 ± 13.89 0 10 77 160 3 +247.41 ± 39.15
189187 ncm-dbt-01 1101397 500 211 42 247 +122.24 ± 14.98 0 12 65 165 8 +265.78 ± 42.44
189186 ncm-dbt-04 1235438 500 205 45 250 +115.22 ± 13.2 0 7 78 163 2 +258.75 ± 38.88
189185 ncm-dbt-02 1249926 500 213 50 237 +117.55 ± 14.04 0 7 80 156 7 +254.16 ± 38.36
189184 ncm-dbt-05 1238498 500 215 47 238 +121.45 ± 13.49 0 6 75 164 5 +270.57 ± 39.67
189183 ncm-dbt-01 1106706 500 211 37 252 +126.17 ± 13.06 0 5 70 171 4 +288.06 ± 41.11
189182 ncm-dbt-06 1209612 500 208 48 244 +115.22 ± 13.55 0 8 77 162 3 +256.44 ± 39.15
189181 ncm-dbt-03 1229400 500 213 51 236 +116.77 ± 13.88 0 10 71 166 3 +261.07 ± 40.78
166064 ncm-et-13 1311187 158 63 10 85 +121.24 ± 27.31 1 3 18 56 1 +282.24 ± 82.58
166063 ncm-et-3 1301286 164 64 21 79 +93.28 ± 26.23 1 4 28 49 0 +208.23 ± 65.73
166062 ncm-et-9 1301437 166 67 18 81 +105.7 ± 22.99 0 1 34 46 2 +223.06 ± 58.19
166061 ncm-et-15 1296333 166 64 20 82 +94.34 ± 24.49 0 4 32 46 1 +199.32 ± 61.23
166060 ncm-et-10 1290613 172 76 14 82 +131.12 ± 23.83 0 2 23 58 3 +292.0 ± 73.56
166059 ncm-et-4 1309500 170 73 16 81 +121.17 ± 29.61 0 6 22 51 6 +240.82 ± 73.47
166058 ncm-et-3 1300890 500 202 37 261 +119.11 ± 13.34 0 7 74 166 3 +268.17 ± 39.97
166057 ncm-et-10 1293523 500 215 47 238 +121.45 ± 13.84 0 7 74 163 6 +268.17 ± 39.97
166056 ncm-et-13 1314361 500 202 40 258 +116.77 ± 13.54 0 8 75 164 3 +261.07 ± 39.69
166055 ncm-et-9 1300814 500 196 48 256 +106.01 ± 13.72 0 9 87 151 3 +230.16 ± 36.73
166054 ncm-et-15 1293055 500 199 56 245 +102.22 ± 14.17 1 9 89 148 3 +221.9 ± 36.31
166053 ncm-et-4 1311661 500 212 49 239 +117.55 ± 13.36 0 7 76 164 3 +263.42 ± 39.41
166052 ncm-et-10 1296227 500 209 57 234 +109.07 ± 13.23 0 7 86 155 2 +240.82 ± 36.9
166051 ncm-et-4 1299731 500 197 57 246 +99.95 ± 14.15 0 12 89 146 3 +213.85 ± 36.34
166050 ncm-et-9 1307755 500 208 59 233 +106.78 ± 15.7 1 12 84 143 10 +219.87 ± 37.42
166049 ncm-et-13 1318446 500 206 51 243 +111.37 ± 14.69 0 11 80 152 7 +236.51 ± 38.38
166048 ncm-et-15 1299301 500 200 55 245 +103.73 ± 14.8 2 9 85 150 4 +226.0 ± 37.21
166047 ncm-et-3 1311278 500 202 56 242 +104.49 ± 14.5 0 10 91 142 7 +217.85 ± 35.89
165875 ncm-et-15 1304262 6 3 0 3 +190.46 ± 18.51 0 0 0 3 0 +1199.83 ± 276.48
165874 ncm-et-13 1308037 500 203 42 255 +116.0 ± 13.54 0 7 79 160 4 +256.44 ± 38.62
165873 ncm-et-9 1296333 498 201 52 245 +107.23 ± 14.09 0 10 84 151 4 +231.39 ± 37.43
165872 ncm-et-10 1294158 500 194 42 264 +109.07 ± 14.53 0 11 82 151 6 +232.26 ± 37.9
165871 ncm-et-3 1313345 500 197 43 260 +110.6 ± 13.89 0 10 79 158 3 +243.0 ± 38.64
165870 ncm-et-15 1302011 500 204 45 251 +114.45 ± 14.38 0 10 77 157 6 +247.41 ± 39.15
165869 ncm-et-4 1307827 500 202 44 254 +113.68 ± 14.05 0 7 85 151 7 +243.0 ± 37.13

Commit

Commit ID da8513f0eae439f526ab0a905a3433bdb44bcf66
Author Michael Chaly
Date 2023-02-02 17:00:14 UTC
Do less SEE pruning in qsearch Current master prunes all moves with negative SEE values in qsearch. This patch sets constant negative threshold thus allowing some moves with negative SEE values to be searched. Value of threshold is completely arbitrary and can be tweaked - also it as function of depth can be tried. Original idea by author of Alexandria engine. Passed STC https://tests.stockfishchess.org/tests/view/63d79a59a67dd929a5564976 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 34864 W: 9392 L: 9086 D: 16386 Ptnml(0-2): 113, 3742, 9429, 4022, 126 Passed LTC https://tests.stockfishchess.org/tests/view/63d8074aa67dd929a5565bc2 LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 91616 W: 24532 L: 24126 D: 42958 Ptnml(0-2): 32, 8840, 27662, 9238, 36 closes https://github.com/official-stockfish/Stockfish/pull/4376 Bench: 4010877
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