1 files changed, 12 insertions, 8 deletions
diff --git a/src/runchess.hs b/src/runchess.hs
index 27a6da8..5854e57 100644
--- a/src/runchess.hs
+++ b/src/runchess.hs
@@ -21,15 +21,19 @@ readPGN = do
     Right games -> return games
 
 applyPGN :: PGN -> IO ()
-applyPGN pgn = printGame (foldM (flip moveSAN) defaultBoard $ moves pgn) pgn
+applyPGN pgn = mapM_ printBoard (seqList [moveSAN m | m <- moves pgn] $ Right defaultBoard)
+  where
+    seqList (f:fs) (Right io) = f io:seqList fs (f io)
+    seqList _      (Left _)   = []
+    seqList []     _          = []
 
 printGame :: Either MoveError Board -> PGN -> IO ()
 printGame b pgn = printPGN pgn >> printBoard b
-  where
-    printBoard (Left  e) = putStrLn $ show e
-    printBoard (Right b) = putStr   $ show b
 
-    printPGN :: PGN -> IO ()
-    printPGN pgn = do
-      putStrLn $ site pgn ++ " " ++ date pgn ++ ": " ++ whitePlayer pgn ++ " vs. " ++ blackPlayer pgn
-      putStrLn $ show $ result pgn
+printBoard (Left  e) = putStrLn $ show e
+printBoard (Right b) = putStr   $ show b
+
+printPGN :: PGN -> IO ()
+printPGN pgn = do
+  putStrLn $ site pgn ++ " " ++ date pgn ++ ": " ++ whitePlayer pgn ++ " vs. " ++ blackPlayer pgn
+  putStrLn $ show $ result pgn