public Chess PlaceAChess(int x, int y)
{
Chess chess;
if (_isBlack)
{
chess = _board.PlaceAChess(x, y, Chess.ChessType.Black);
}
else
{
chess = _board.PlaceAChess(x, y, Chess.ChessType.White);
}
if (chess != null)
{
CheckWinner();
_isBlack = !_isBlack;
return(chess);
}
return(null);
}