Dev Builds » 20240117-1756

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 09:50:38 1100935 3328 1471 255 1602 +133.1 ± 5.38 1 29 451 1119 64 +296.55 ± 16.05
ncm-dbt-02 09:47:59 1233129 3322 1483 263 1576 +133.85 ± 5.28 0 36 419 1156 50 +304.34 ± 16.67
ncm-dbt-03 09:52:02 1237507 3350 1469 222 1659 +135.85 ± 5.14 0 29 419 1178 49 +311.93 ± 16.66
ncm-dbt-04 09:51:47 1233469 3352 1448 252 1652 +129.67 ± 5.16 1 32 452 1152 39 +295.23 ± 16.03
ncm-dbt-05 09:47:38 1229248 3292 1442 250 1600 +131.78 ± 5.03 0 25 438 1149 34 +303.74 ± 16.27
ncm-dbt-06 09:52:06 1228180 3356 1476 239 1641 +134.39 ± 5.05 0 25 435 1174 44 +308.92 ± 16.34
20000 8789 1481 9730 +133.1 ± 2.11 2 176 2614 6928 280 +303.38 ± 6.66

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
257349 ncm-dbt-05 1245384 292 129 20 143 +136.27 ± 17.92 0 3 36 102 5 +309.88 ± 58.08
257348 ncm-dbt-02 1226619 322 145 23 154 +138.54 ± 17.05 0 4 36 116 5 +320.24 ± 58.03
257347 ncm-dbt-01 1091144 328 142 24 162 +130.84 ± 18.36 0 6 41 110 7 +286.02 ± 54.03
257346 ncm-dbt-04 1241690 352 152 33 167 +122.26 ± 16.15 0 4 53 115 4 +271.43 ± 47.37
257345 ncm-dbt-03 1239016 350 153 22 175 +136.68 ± 16.17 0 3 44 122 6 +311.26 ± 52.29
257344 ncm-dbt-06 1236681 356 155 26 175 +131.88 ± 16.42 0 2 53 115 8 +287.92 ± 47.18
257343 ncm-dbt-05 1231149 500 226 46 228 +130.94 ± 13.87 0 7 63 173 7 +295.94 ± 43.42
257342 ncm-dbt-01 1102667 500 212 35 253 +128.55 ± 12.82 0 5 66 176 3 +298.62 ± 42.41
257341 ncm-dbt-02 1233613 500 218 42 240 +127.76 ± 13.57 0 6 68 170 6 +288.06 ± 41.76
257340 ncm-dbt-04 1229676 500 207 37 256 +123.02 ± 14.33 0 9 69 165 7 +270.57 ± 41.4
257339 ncm-dbt-06 1239847 500 224 32 244 +140.62 ± 12.23 0 0 65 178 7 +330.23 ± 42.3
257338 ncm-dbt-03 1258003 500 224 34 242 +138.99 ± 14.03 0 4 64 170 12 +309.64 ± 43.08
257337 ncm-dbt-05 1209116 500 216 37 247 +130.14 ± 12.19 0 1 73 172 4 +301.33 ± 39.86
257336 ncm-dbt-01 1110615 500 225 32 243 +141.44 ± 14.33 0 5 60 172 13 +315.35 ± 44.57
257335 ncm-dbt-02 1236450 500 232 38 230 +142.25 ± 13.94 0 4 60 174 12 +321.19 ± 44.57
257334 ncm-dbt-03 1236420 500 224 32 244 +140.62 ± 13.43 0 3 62 175 10 +321.19 ± 43.77
257333 ncm-dbt-04 1235698 500 211 46 243 +119.11 ± 13.52 0 5 81 158 6 +261.07 ± 38.02
257332 ncm-dbt-06 1230728 500 220 26 254 +142.25 ± 13.37 0 4 57 180 9 +330.23 ± 45.79
257331 ncm-dbt-05 1221818 500 211 35 254 +127.76 ± 12.45 0 3 71 173 3 +295.94 ± 40.69
257330 ncm-dbt-03 1238682 500 222 37 241 +134.95 ± 12.84 0 3 65 176 6 +312.48 ± 42.67
257329 ncm-dbt-01 1114048 500 221 35 244 +135.76 ± 14.29 0 5 66 167 12 +298.62 ± 42.41
257328 ncm-dbt-02 1227012 500 220 34 246 +135.76 ± 13.2 0 3 66 173 8 +309.64 ± 42.33
257327 ncm-dbt-06 1237441 500 225 41 234 +134.15 ± 13.8 0 8 56 180 6 +309.64 ± 45.98
257326 ncm-dbt-04 1221404 500 221 32 247 +138.18 ± 12.33 0 2 62 181 5 +327.18 ± 43.69
257325 ncm-dbt-05 1220026 500 231 42 227 +138.18 ± 12.53 0 2 63 179 6 +324.17 ± 43.32
257324 ncm-dbt-03 1231835 500 223 33 244 +138.99 ± 14.03 0 8 52 182 8 +321.19 ± 47.67
257323 ncm-dbt-01 1105471 500 225 47 228 +129.35 ± 12.8 0 2 74 168 6 +293.29 ± 39.69
257322 ncm-dbt-02 1237213 500 223 40 237 +133.34 ± 13.26 0 5 63 176 6 +306.84 ± 43.45
257321 ncm-dbt-06 1211743 500 215 43 242 +124.6 ± 13.27 0 5 73 167 5 +280.42 ± 40.21
257320 ncm-dbt-04 1245695 500 213 39 248 +126.18 ± 13.95 1 7 63 175 4 +290.66 ± 43.37
257319 ncm-dbt-05 1235485 500 209 35 256 +126.17 ± 12.68 0 6 65 178 1 +295.94 ± 42.75
257318 ncm-dbt-01 1099152 500 218 53 229 +119.11 ± 14.52 0 5 87 146 12 +247.41 ± 36.56
257317 ncm-dbt-04 1249156 500 228 38 234 +138.99 ± 13.48 0 2 67 170 11 +312.48 ± 41.9
257316 ncm-dbt-03 1219218 500 207 31 262 +127.76 ± 12.84 0 4 70 172 4 +293.29 ± 41.07
257315 ncm-dbt-02 1228943 500 222 46 232 +127.76 ± 13.21 0 7 63 177 3 +295.94 ± 43.42
257314 ncm-dbt-06 1228649 500 225 35 240 +138.99 ± 12.5 0 4 56 186 4 +333.32 ± 46.21
257313 ncm-dbt-05 1241759 500 220 35 245 +134.95 ± 13.22 0 3 67 172 8 +306.84 ± 41.99
257312 ncm-dbt-01 1083449 500 228 29 243 +146.36 ± 13.61 1 1 57 180 11 +342.85 ± 45.71
257311 ncm-dbt-02 1242058 500 223 40 237 +133.34 ± 14.34 0 7 63 170 10 +295.94 ± 43.42
257310 ncm-dbt-04 1210970 500 216 27 257 +138.18 ± 11.91 0 3 57 188 2 +336.46 ± 45.77
257309 ncm-dbt-03 1239376 500 216 33 251 +133.34 ± 12.49 0 4 62 181 3 +315.35 ± 43.81
257308 ncm-dbt-06 1212176 500 212 36 252 +127.76 ± 12.65 0 2 75 168 5 +290.66 ± 39.4

Commit

Commit ID c8bc2ce4fae2bc9a5dd9b5121274c47d5c9262c0
Author Viren6
Date 2024-01-17 17:56:37 UTC
Improve ttPv reduction This patch allows a partial reduction decrease when a node is likely to fail low, and increases the reduction decrease when a node has failed high. Passed STC: https://tests.stockfishchess.org/tests/view/65a626e779aa8af82b9722bc LLR: 2.93 (-2.94,2.94) <0.00,2.00> Total: 157824 W: 40332 L: 39835 D: 77657 Ptnml(0-2): 543, 18617, 40098, 19108, 546 Passed LTC: https://tests.stockfishchess.org/tests/view/65a7290279aa8af82b97328a LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 57228 W: 14475 L: 14111 D: 28642 Ptnml(0-2): 34, 6278, 15633, 6628, 41 closes https://github.com/official-stockfish/Stockfish/pull/4994 Bench: 1364759
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