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Update to current Stockfish development version

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Corresponds to commit 8b8a510fd6a1a17b39b2d4b166f60ac7be0dab23 in
Stockfish repository, from Wed Sep 16 17:39:11 2020 +0200.
This commit is contained in:
Peter Osterlund
2020-09-19 23:43:58 +02:00
parent ed5ef03dba
commit 1871f1d54a
13 changed files with 186 additions and 214 deletions
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11
DroidFishApp/src/main/cpp/stockfish/evaluate.cpp
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@@ -1015,12 +1015,19 @@ make_v:
Value Eval::evaluate(const Position& pos) {
// Use classical eval if there is a large imbalance
// If there is a moderate imbalance, use classical eval with probability (1/8),
// as derived from the node counter.
bool useClassical = abs(eg_value(pos.psq_score())) * 16 > NNUEThreshold1 * (16 + pos.rule50_count());
bool classical = !Eval::useNNUE
|| abs(eg_value(pos.psq_score())) * 16 > NNUEThreshold1 * (16 + pos.rule50_count());
|| useClassical
|| (abs(eg_value(pos.psq_score())) > PawnValueMg / 4 && !(pos.this_thread()->nodes & 0xB));
Value v = classical ? Evaluation<NO_TRACE>(pos).value()
: NNUE::evaluate(pos) * 5 / 4 + Tempo;
if (classical && Eval::useNNUE && abs(v) * 16 < NNUEThreshold2 * (16 + pos.rule50_count()))
if ( useClassical
&& Eval::useNNUE
&& abs(v) * 16 < NNUEThreshold2 * (16 + pos.rule50_count()))
v = NNUE::evaluate(pos) * 5 / 4 + Tempo;
// Damp down the evaluation linearly when shuffling