Be more optimistic in aspiration window

[stockfish] / src / position.cpp

diff --git a/src/position.cpp b/src/position.cpp
index 918d50e505e0d1e9ab8cb4b5b15f11c6d38d81ec..d2f8d287670ec2b0efcd4b37c8e8feff3bf3f4fa 100644 (file)
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -34,8 +34,6 @@
 
 using std::string;
 
-CACHE_LINE_ALIGNMENT
-
 Value PieceValue[PHASE_NB][PIECE_NB] = {
 { VALUE_ZERO, PawnValueMg, KnightValueMg, BishopValueMg, RookValueMg, QueenValueMg },
 { VALUE_ZERO, PawnValueEg, KnightValueEg, BishopValueEg, RookValueEg, QueenValueEg } };
@@ -107,6 +105,30 @@ CheckInfo::CheckInfo(const Position& pos) {
 }
 
 
+/// operator<<(Position) returns an ASCII representation of the position
+
+std::ostream& operator<<(std::ostream& os, const Position& pos) {
+
+  os << "\n +---+---+---+---+---+---+---+---+\n";
+
+  for (Rank r = RANK_8; r >= RANK_1; --r)
+  {
+      for (File f = FILE_A; f <= FILE_H; ++f)
+          os << " | " << PieceToChar[pos.piece_on(make_square(f, r))];
+
+      os << " |\n +---+---+---+---+---+---+---+---+\n";
+  }
+
+  os << "\nFen: " << pos.fen() << "\nKey: " << std::hex << std::uppercase
+     << std::setfill('0') << std::setw(16) << pos.st->key << std::dec << "\nCheckers: ";
+
+  for (Bitboard b = pos.checkers(); b; )
+      os << UCI::format_square(pop_lsb(&b)) << " ";
+
+  return os;
+}
+
+
 /// Position::init() initializes at startup the various arrays used to compute
 /// hash keys and the piece square tables. The latter is a two-step operation:
 /// Firstly, the white halves of the tables are copied from PSQT[] tables.
@@ -429,32 +451,6 @@ const string Position::fen() const {
 }
 
 
-/// Position::pretty() returns an ASCII representation of the position
-
-const string Position::pretty() const {
-
-  std::ostringstream ss;
-
-  ss << "\n +---+---+---+---+---+---+---+---+\n";
-
-  for (Rank r = RANK_8; r >= RANK_1; --r)
-  {
-      for (File f = FILE_A; f <= FILE_H; ++f)
-          ss << " | " << PieceToChar[piece_on(make_square(f, r))];
-
-      ss << " |\n +---+---+---+---+---+---+---+---+\n";
-  }
-
-  ss << "\nFen: " << fen() << "\nKey: " << std::hex << std::uppercase
-     << std::setfill('0') << std::setw(16) << st->key << "\nCheckers: ";
-
-  for (Bitboard b = checkers(); b; )
-      ss << UCI::format_square(pop_lsb(&b)) << " ";
-
-  return ss.str();
-}
-
-
 /// Position::game_phase() calculates the game phase interpolating total non-pawn
 /// material between endgame and midgame limits.