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Adjust scale param higher

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xoto10's scaleopt tune resulted in a yellow LTC, but the main parameter shift looked almost exactly like the tune rate reduction schedule,
so further increases of that param were tried. Joint work xoto10 and dubslow.

passed LTC:
https://tests.stockfishchess.org/tests/view/628c709372775f382300f03e
LLR: 2.93 (-2.94,2.94) <0.50,3.00>
Total: 70112 W: 18932 L: 18584 D: 32596
Ptnml(0-2): 66, 6904, 20757, 7274, 55

failed STC:
https://tests.stockfishchess.org/tests/view/6290e4441e7cd5f29966bdc8
LLR: -2.96 (-2.94,2.94) <0.00,2.50>
Total: 59976 W: 15919 L: 16018 D: 28039
Ptnml(0-2): 250, 6791, 15974, 6754, 219

similar LTC's were yellow
first yellow LTC: https://tests.stockfishchess.org/tests/view/6288a33f817227d3e5c5b05d
double exaggerate yellow: https://tests.stockfishchess.org/tests/live_elo/628e140372775f38230129a6
triple exaggerate yellow: https://tests.stockfishchess.org/tests/live_elo/628e2caf72775f3823012d45

closes https://github.com/official-stockfish/Stockfish/pull/4036

bench 6410652
This commit is contained in:
xoto10 2022-05-19 08:51:40 +01:00 • committed by Joost VandeVondele
parent 6ede1bed89
commit 4c7de9e8ab
2 changed files with 5 additions and 4 deletions
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1
AUTHORS
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@ -55,6 +55,7 @@ DiscanX
Dominik Schlösser (domschl)
double-beep
Douglas Matos Gomes (dsmsgms)
Dubslow
Eduardo Cáceres (eduherminio)
Eelco de Groot (KingDefender)
Elvin Liu (solarlight2)

8
src/evaluate.cpp
View file

@ -1100,14 +1100,14 @@ Value Eval::evaluate(const Position& pos) {
if (useNNUE && !useClassical)
{
Value nnue = NNUE::evaluate(pos, true); // NNUE
int scale = 1014 + 21 * pos.non_pawn_material() / 1024;
int scale = 1080 + 110 * pos.non_pawn_material() / 5120;
Color stm = pos.side_to_move();
Value optimism = pos.this_thread()->optimism[stm];
Value psq = (stm == WHITE ? 1 : -1) * eg_value(pos.psq_score());
int complexity = 35 * abs(nnue - psq) / 256;
int complexity = (278 * abs(nnue - psq)) / 256;
optimism = optimism * (32 + complexity) / 32;
v = (nnue * scale + optimism * (scale - 846)) / 1024;
optimism = optimism * (251 + complexity) / 256;
v = (nnue * scale + optimism * (scale - 852)) / 1024;
if (pos.is_chess960())
v += fix_FRC(pos);