public ChessGame(string fen)
{
var parts = fen.Split();
PieceSerializer.ParseBoard(parts[0], out WhiteKingSquare, out BlackKingSquare, out Board);
ActiveColor = PieceSerializer.ToColor(parts[1]);
var(hasWhiteKingMoved, hasBlackKingMoved, hasWhiteQueensideRookMoved, hasWhiteKingsideRookMoved, hasBlackQueensideRookMoved, hasBlackKingsideRookMoved) = PieceSerializer.ParseCastlings(parts[2]);
HasWhiteKingMoved = hasWhiteKingMoved;
HasBlackKingMoved = hasBlackKingMoved;
HasWhiteQueensideRookMoved = hasWhiteQueensideRookMoved;
HasWhiteKingsideRookMoved = hasWhiteKingsideRookMoved;
HasBlackQueensideRookMoved = hasBlackQueensideRookMoved;
HasBlackKingsideRookMoved = hasBlackKingsideRookMoved;
EnPassantTargetSquare = PieceSerializer.ToSquare(parts[3]);
MoveCount = int.Parse(parts[5]);
var(whitePieces, blackPieces) = GetPieces(Board);
WhitePieces = whitePieces;
BlackPieces = blackPieces;
}
public override string ToString() => PieceSerializer.ToFen(this);