const string Position::pretty(Move m) const {
- const string dottedLine = "\n+---+---+---+---+---+---+---+---+";
- const string twoRows = dottedLine + "\n| | . | | . | | . | | . |"
- + dottedLine + "\n| . | | . | | . | | . | |";
-
- string brd = twoRows + twoRows + twoRows + twoRows + dottedLine;
-
- for (Bitboard b = pieces(); b; )
- {
- Square s = pop_lsb(&b);
- brd[513 - 68 * rank_of(s) + 4 * file_of(s)] = PieceToChar[piece_on(s)];
- }
-
std::ostringstream ss;
if (m)
ss << "\nMove: " << (sideToMove == BLACK ? ".." : "")
<< move_to_san(*const_cast<Position*>(this), m);
- ss << brd << "\nFen: " << fen() << "\nKey: " << std::hex << std::uppercase
+ 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; )