diff --git a/src/search.cpp b/src/search.cpp index 45f0f10fc52..345a2a0039b 100644 --- a/src/search.cpp +++ b/src/search.cpp @@ -593,10 +593,9 @@ Value Search::Worker::search( // Step 2. Check for aborted search and immediate draw if (threads.stop.load(std::memory_order_relaxed) || pos.is_draw(ss->ply) || ss->ply >= MAX_PLY) - return (ss->ply >= MAX_PLY && !ss->inCheck) - ? evaluate(networks[numaAccessToken], pos, refreshTable, - thisThread->optimism[us]) - : value_draw(thisThread->nodes); + return (ss->ply >= MAX_PLY && !ss->inCheck) ? evaluate( + networks[numaAccessToken], pos, refreshTable, thisThread->optimism[us]) + : value_draw(thisThread->nodes); // Step 3. Mate distance pruning. Even if we mate at the next move our score // would be at best mate_in(ss->ply + 1), but if alpha is already bigger because @@ -889,8 +888,7 @@ Value Search::Worker::search( // Prefetch the TT entry for the resulting position prefetch(tt.first_entry(pos.key_after(move))); - ss->currentMove = move; - ss->capturedPiece = captured; + ss->currentMove = move; ss->continuationHistory = &this->continuationHistory[ss->inCheck][true][pos.moved_piece(move)][move.to_sq()]; ss->continuationCorrectionHistory = @@ -1139,8 +1137,7 @@ Value Search::Worker::search( prefetch(tt.first_entry(pos.key_after(move))); // Update the current move (this must be done after singular extension search) - ss->currentMove = move; - ss->capturedPiece = pos.piece_on(move.to_sq()); + ss->currentMove = move; ss->continuationHistory = &thisThread->continuationHistory[ss->inCheck][capture][movedPiece][move.to_sq()]; ss->continuationCorrectionHistory = @@ -1405,7 +1402,8 @@ Value Search::Worker::search( else if (priorCapture && prevSq != SQ_NONE) { // bonus for prior countermoves that caused the fail low - Piece capturedPiece = (ss - 1)->capturedPiece; + Piece capturedPiece = pos.captured_piece(); + assert(capturedPiece != NO_PIECE); thisThread->captureHistory[pos.piece_on(prevSq)][prevSq][type_of(capturedPiece)] << stat_bonus(depth) * 2; } @@ -1654,8 +1652,7 @@ Value Search::Worker::qsearch(Position& pos, Stack* ss, Value alpha, Value beta) prefetch(tt.first_entry(pos.key_after(move))); // Update the current move - ss->currentMove = move; - ss->capturedPiece = pos.piece_on(move.to_sq()); + ss->currentMove = move; ss->continuationHistory = &thisThread ->continuationHistory[ss->inCheck][capture][pos.moved_piece(move)][move.to_sq()]; diff --git a/src/search.h b/src/search.h index 7868f607870..b618855b9fc 100644 --- a/src/search.h +++ b/src/search.h @@ -66,7 +66,6 @@ struct Stack { CorrectionHistory* continuationCorrectionHistory; int ply; Move currentMove; - Piece capturedPiece; Move excludedMove; Value staticEval; int statScore; @@ -357,4 +356,4 @@ class Worker { } // namespace Stockfish -#endif // #ifndef SEARCH_H_INCLUDED \ No newline at end of file +#endif // #ifndef SEARCH_H_INCLUDED