public string ToUsiString()
{
if (this == Resign)
{
return("resign");
}
else if (this == Win)
{
return("win");
}
string usiString = "";
if (Drop)
{
usiString += char.ToUpper(PieceFrom.ToUsiChar());
usiString += "*";
}
else
{
usiString += (char)(FileFrom + '1');
usiString += (char)(RankFrom + 'a');
}
usiString += (char)(FileTo + '1');
usiString += (char)(RankTo + 'a');
if (Promotion)
{
usiString += "+";
}
return(usiString);
}
public override string ToString()
{
return($"{SideToMove.ToHumanReadableString()}{(char)('１' + FileTo)}{RankToKanjiLetters[RankTo]}{PieceFrom.ToHumanReadableString().Trim()[0]}{(Promotion ? "成" : "")}");
}
