diff --git a/src/history.h b/src/history.h index faf4af3d7..1f7abc542 100644 --- a/src/history.h +++ b/src/history.h @@ -33,7 +33,7 @@ namespace Stockfish { -constexpr int PAWN_HISTORY_SIZE = 512; // has to be a power of 2 +constexpr int PAWN_HISTORY_SIZE = 1024; // has to be a power of 2 constexpr int CORRECTION_HISTORY_SIZE = 32768; // has to be a power of 2 constexpr int CORRECTION_HISTORY_LIMIT = 1024; constexpr int LOW_PLY_HISTORY_SIZE = 5; diff --git a/src/search.cpp b/src/search.cpp index 0a4a390bb..25102b131 100644 --- a/src/search.cpp +++ b/src/search.cpp @@ -1873,7 +1873,7 @@ void update_quiet_histories( int pIndex = pawn_history_index(pos); workerThread.pawnHistory[pIndex][pos.moved_piece(move)][move.to_sq()] - << (bonus * (bonus > 0 ? 704 : 439) / 1024) + 70; + << (bonus * (bonus > 0 ? 800 : 500) / 1024) + 70; } }