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Remove last captures extension

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STC https://tests.stockfishchess.org/tests/view/5f395657e98b6c64b3df41dd
LLR: 2.95 (-2.94,2.94) {-1.50,0.50}
Total: 144664 W: 15426 L: 15537 D: 113701
Ptnml(0-2): 612, 11341, 48537, 11230, 612

LTC https://tests.stockfishchess.org/tests/view/5f3a2ec7b38d442594aabdd7
LLR: 2.96 (-2.94,2.94) {-1.50,0.50}
Total: 22728 W: 1161 L: 1146 D: 20421
Ptnml(0-2): 21, 960, 9388, 973, 22

closes https://github.com/official-stockfish/Stockfish/pull/3020

bench: 3832662
This commit is contained in:
Unai Corzo 2020-08-17 18:22:32 +02:00 • committed by Joost VandeVondele
parent 1c0b7bdf4f
commit 581b92e4a7
1 changed files with 0 additions and 5 deletions
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5
src/search.cpp
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@ -1122,11 +1122,6 @@ moves_loop: // When in check, search starts from here
&& (pos.is_discovery_check_on_king(~us, move) || pos.see_ge(move))) && (pos.is_discovery_check_on_king(~us, move) || pos.see_ge(move)))
extension = 1; extension = 1;
// Last captures extension
else if ( PieceValue[EG][pos.captured_piece()] > PawnValueEg
&& pos.non_pawn_material() <= 2 * RookValueMg)
extension = 1;
// Castling extension // Castling extension
if ( type_of(move) == CASTLING if ( type_of(move) == CASTLING
&& popcount(pos.pieces(us) & ~pos.pieces(PAWN) & (to_sq(move) & KingSide ? KingSide : QueenSide)) <= 2) && popcount(pos.pieces(us) & ~pos.pieces(PAWN) & (to_sq(move) & KingSide ? KingSide : QueenSide)) <= 2)