diff --git a/board.py b/board.py
index a693f95..d685fa4 100644
--- a/board.py
+++ b/board.py
@@ -58,7 +58,7 @@ class Board:
 
     def is_winner(self,sym):
         for i in range(1,25):
-            if sym * self.state[i] < 0:
+            if sym * self.state[i] > 0:
                 return False
         return True