public FenParser(string fen)
{
FEN = fen;
ParseFenSubstrings(FEN.Split(' '));
BoardStateData = new BoardStateData(PiecePlacementString, ActiveColorString, CastlingAvailabilityString,
EnPassantSquareString, HalfmoveClockString, FullmoveNumberString);
}
public FenParser()
{
BoardStateData = new BoardStateData();
}