diff --git a/buggy.py b/buggy.py
--- a/buggy.py
+++ b/buggy.py
@@ -7,7 +7,7 @@
     if b in player:
         player.remove(b)
 
-if player.count == 1:
+if len(player) == 1:
     print(player[0])
 else:
     print(-1)
