WhiteDrop, BlackDrop,
NormalMove, AmbiguousMove, IllegalMove, ImpossibleMove,
WhiteWins, BlackWins, GameIsDrawn, GameUnfinished,
- GNUChessGame, XBoardGame, MoveNumberOne,
+ GNUChessGame, XBoardGame, MoveNumberOne, Open, Close, Nothing,
Comment, PositionDiagram, ElapsedTime, PGNTag, NAG
} ChessMove;