Dev Builds » 20231027-1524

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 09:56:14 1095689 3354 1439 278 1637 +125.45 +/- 5.31 0 40 482 1109 46 +278.47 +/- 15.53
ncm-dbt-02 09:35:53 1198784 3228 1405 248 1575 +130.32 +/- 5.38 3 36 414 1123 38 +298.06 +/- 16.77
ncm-dbt-03 09:57:57 1232275 3352 1447 289 1616 +125.18 +/- 5.14 0 30 497 1110 39 +280.21 +/- 15.26
ncm-dbt-04 09:57:31 1226979 3366 1449 287 1630 +125.08 +/- 5.26 0 35 498 1103 47 +277.0 +/- 15.26
ncm-dbt-05 09:52:25 1232372 3344 1460 259 1625 +130.6 +/- 5.1 0 30 450 1153 39 +297.93 +/- 16.06
ncm-dbt-06 09:57:20 1223216 3356 1418 272 1666 +123.6 +/- 5.32 0 41 496 1095 46 +272.72 +/- 15.3
20000 8618 1633 9749 +126.67 +/- 2.14 3 212 2837 6693 255 +283.77 +/- 6.39

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
207655 ncm-dbt-02 1194356 228 93 9 126 +134.32 +/- 20.21 1 2 24 86 1 +327.82 +/- 71.89
207654 ncm-dbt-05 1244509 344 148 21 175 +134.62 +/- 14.37 0 2 42 127 1 +324.58 +/- 53.55
207653 ncm-dbt-03 1227442 352 152 30 170 +125.62 +/- 15.78 0 4 49 120 3 +285.58 +/- 49.4
207652 ncm-dbt-01 1097547 354 155 29 170 +129.32 +/- 16.55 0 3 52 115 7 +283.15 +/- 47.79
207651 ncm-dbt-06 1213650 356 141 33 182 +108.82 +/- 16.12 0 6 60 110 2 +238.39 +/- 44.41
207650 ncm-dbt-04 1223700 366 150 27 189 +121.48 +/- 15.19 0 5 51 126 1 +279.59 +/- 48.4
207649 ncm-dbt-02 1197645 500 211 42 247 +122.24 +/- 14.0 1 6 71 167 5 +275.45 +/- 40.84
207648 ncm-dbt-05 1217006 500 209 38 253 +123.81 +/- 12.92 0 2 81 161 6 +275.45 +/- 37.75
207647 ncm-dbt-01 1098185 500 209 46 245 +117.55 +/- 14.37 0 8 79 155 8 +251.89 +/- 38.63
207646 ncm-dbt-06 1216737 500 218 39 243 +130.14 +/- 14.23 0 4 75 159 12 +280.42 +/- 39.57
207645 ncm-dbt-03 1231273 500 202 33 265 +122.24 +/- 12.38 0 3 77 168 2 +280.42 +/- 38.93
207644 ncm-dbt-04 1224644 500 212 39 249 +125.38 +/- 13.25 0 3 78 162 7 +277.93 +/- 38.66
207643 ncm-dbt-02 1193235 500 212 41 247 +123.81 +/- 14.15 0 7 73 162 8 +270.57 +/- 40.25
207642 ncm-dbt-05 1237175 500 220 39 241 +131.74 +/- 12.74 0 3 68 174 5 +304.07 +/- 41.65
207641 ncm-dbt-01 1079471 500 211 44 245 +120.67 +/- 13.84 0 6 78 159 7 +263.42 +/- 38.85
207640 ncm-dbt-06 1231649 500 215 41 244 +126.17 +/- 13.06 0 4 73 168 5 +285.49 +/- 40.16
207639 ncm-dbt-03 1227261 500 218 44 238 +126.17 +/- 13.6 0 4 76 162 8 +277.93 +/- 39.29
207638 ncm-dbt-04 1211316 500 217 42 241 +126.97 +/- 13.41 0 4 74 165 7 +282.94 +/- 39.86
207637 ncm-dbt-02 1195385 500 232 45 223 +136.56 +/- 12.98 0 4 61 179 6 +318.25 +/- 44.18
207636 ncm-dbt-05 1230666 500 215 42 243 +125.38 +/- 13.61 0 5 74 164 7 +277.93 +/- 39.92
207635 ncm-dbt-01 1094734 500 210 35 255 +126.97 +/- 13.41 0 6 68 171 5 +288.06 +/- 41.76
207634 ncm-dbt-06 1219516 500 198 36 266 +116.77 +/- 13.54 0 7 78 161 4 +258.75 +/- 38.88
207633 ncm-dbt-03 1237740 500 210 42 248 +121.45 +/- 14.01 0 6 78 158 8 +263.42 +/- 38.85
207632 ncm-dbt-04 1228549 500 226 44 230 +132.54 +/- 14.01 0 4 71 164 11 +290.66 +/- 40.76
207631 ncm-dbt-02 1191985 500 216 37 247 +130.14 +/- 14.74 0 10 60 171 9 +288.06 +/- 44.27
207630 ncm-dbt-05 1232357 500 222 47 231 +126.97 +/- 13.04 0 4 72 169 5 +288.06 +/- 40.46
207629 ncm-dbt-06 1229254 500 221 36 243 +134.95 +/- 13.96 0 6 62 173 9 +304.07 +/- 43.81
207628 ncm-dbt-01 1097897 500 213 31 256 +132.54 +/- 13.28 0 6 61 178 5 +306.84 +/- 44.17
207627 ncm-dbt-03 1211368 500 223 43 234 +130.94 +/- 12.95 0 3 70 171 6 +298.62 +/- 41.01
207626 ncm-dbt-04 1224034 500 211 41 248 +123.02 +/- 13.65 0 4 80 158 8 +268.17 +/- 38.21
207625 ncm-dbt-02 1198188 500 229 35 236 +142.25 +/- 12.78 0 4 54 186 6 +339.63 +/- 47.1
207624 ncm-dbt-05 1236412 500 228 31 241 +144.71 +/- 13.86 0 8 45 189 8 +342.85 +/- 51.08
207623 ncm-dbt-06 1216167 500 212 51 237 +116.0 +/- 14.37 0 10 75 159 6 +251.89 +/- 39.67
207622 ncm-dbt-01 1099857 500 225 39 236 +135.76 +/- 13.94 0 6 61 174 9 +306.84 +/- 44.17
207621 ncm-dbt-03 1232575 500 214 52 234 +116.77 +/- 13.36 0 6 80 160 4 +258.75 +/- 38.32
207620 ncm-dbt-04 1234458 500 218 48 234 +123.02 +/- 14.49 0 9 70 163 8 +268.17 +/- 41.1
207619 ncm-dbt-02 1220694 500 212 39 249 +125.39 +/- 13.07 1 3 71 172 3 +290.66 +/- 40.76
207618 ncm-dbt-05 1228484 500 218 41 241 +128.55 +/- 13.73 0 6 68 169 7 +288.06 +/- 41.76
207617 ncm-dbt-01 1102136 500 216 54 230 +116.77 +/- 13.36 0 5 83 157 5 +256.44 +/- 37.51
207616 ncm-dbt-06 1235540 500 213 36 251 +128.55 +/- 13.56 0 4 73 165 8 +285.49 +/- 40.16
207615 ncm-dbt-03 1258271 500 228 45 227 +133.34 +/- 13.45 0 4 67 171 8 +301.33 +/- 42.04
207614 ncm-dbt-04 1242153 500 215 46 239 +122.24 +/- 13.48 0 6 74 165 5 +273.0 +/- 39.95

Commit

Commit ID b0658f09b93185e2b43d4b2d6f0daa30c36ebcc2
Author Michael Chaly
Date 2023-10-27 15:24:25 UTC
Introduce pawn structure based history Original idea by Seer chess engine https://github.com/connormcmonigle/seer-nnue, coding done by @Disservin, code refactoring done by @locutus2 to match the style of other histories. This patch introduces pawn structure based history, which assings moves values based on last digits of pawn structure hash and piece type of moved piece and landing square of the move. Idea is that good places for pieces are quite often determined by pawn structure of position. Used in 3 different places - sorting of quiet moves, sorting of quiet check evasions and in history based pruning in search. Passed STC: https://tests.stockfishchess.org/tests/view/65391d08cc309ae83955dbaf LLR: 2.95 (-2.94,2.94) <0.00,2.00> Total: 155488 W: 39408 L: 38913 D: 77167 Ptnml(0-2): 500, 18427, 39408, 18896, 513 Passed LTC: https://tests.stockfishchess.org/tests/view/653a36a2cc309ae83955f181 LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 70110 W: 17548 L: 17155 D: 35407 Ptnml(0-2): 33, 7859, 18889, 8230, 44 closes https://github.com/official-stockfish/Stockfish/pull/4849 Bench: 1257882 Co-Authored-By: Disservin <disservin.social@gmail.com> Co-Authored-By: Stefan Geschwentner <locutus2@users.noreply.github.com>
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