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Extra bonus for capture creating a huge fail high

Browse source 
STC:
http://tests.stockfishchess.org/tests/view/5b114f3d0ebc596e9e0881f6
LLR: 2.95 (-2.94,2.94) [0.00,5.00]
Total: 13007 W: 2730 L: 2541 D: 7736

LTC:
http://tests.stockfishchess.org/tests/view/5b1176740ebc59033d2d52c6
LLR: 2.96 (-2.94,2.94) [0.00,5.00]
Total: 15594 W: 2417 L: 2239 D: 10938

See https://github.com/official-stockfish/Stockfish/pull/1627

Bench: 4790240
This commit is contained in:
pb00068 2018-06-02 18:01:11 +02:00 • committed by Stéphane Nicolet
parent a0486ecb40
commit c5d6ae8c96
1 changed files with 2 additions and 1 deletions
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3
src/search.cpp
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@ -1166,7 +1166,8 @@ moves_loop: // When in check, search starts from here
if (!pos.capture_or_promotion(bestMove))
update_quiet_stats(pos, ss, bestMove, quietsSearched, quietCount, stat_bonus(depth));
else
update_capture_stats(pos, bestMove, capturesSearched, captureCount, stat_bonus(depth));
update_capture_stats(pos, bestMove, capturesSearched, captureCount,
stat_bonus(depth + bool(bestValue > beta + KnightValueMg) * ONE_PLY));
// Extra penalty for a quiet TT move in previous ply when it gets refuted
if ((ss-1)->moveCount == 1 && !pos.captured_piece())