public string GetPrevMoveEran()
{
if (Plies <= FirstPly)
{
return(null);
}
var e = BoardHistory.Prev();
if (e == null)
{
return(null);
}
var move = BoardHistory.Current().Move;
if (move == null)
{
return(null);
}
return(Eran.MakeFromBoardAndMove(
new ChessGame(e.GCD),
move
));
}
public string GetPrevFen()
{
return(BoardHistory.Prev().GetFen());
}