Update lichess_sf.py

lichess_sf.py

@@ -93,10 +93,10 @@ class Lichess(datasets.GeneratorBasedBuilder):
                         while True:
                             elos = pgn.readline()
                             game = pgn.readline()
-                            fens, moves, scores = game.split(";")
 
                             if game:
                                 white_elo, black_elo = elos.split(" ")
+                                fens, moves, scores = game.split(";")
                                 _id = n
                                 n += 1
                                 yield _id, {"WhiteElo": white_elo,