Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
- Copyright (C) 2015-2017 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
+ Copyright (C) 2015-2018 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
while ((ss >> token) && !isspace(token))
{
if (isdigit(token))
- sq += Square(token - '0'); // Advance the given number of files
+ sq += (token - '0') * EAST; // Advance the given number of files
else if (token == '/')
- sq -= Square(16);
+ sq += 2 * SOUTH;
else if ((idx = PieceToChar.find(token)) != string::npos)
{
if ( (int(to) ^ int(from)) == 16
&& (attacks_from<PAWN>(to - pawn_push(us), us) & pieces(them, PAWN)))
{
- st->epSquare = (from + to) / 2;
+ st->epSquare = to - pawn_push(us);
k ^= Zobrist::enpassant[file_of(st->epSquare)];
}