public static void TestUndoNYI() { string fen = "rnbqkbnr/ppp1pppp/8/3p4/4P3/8/PPPP1PPP/RNBQKBNR/ w KQkq - 2 2"; CrazyhouseChessGame game = new CrazyhouseChessGame(fen); game.MakeMove(new Move("E4", "D5", Player.White), true); Assert.Throws <NotImplementedException>(() => game.Undo()); }