diff --git a/buggy.py b/buggy.py
--- a/buggy.py
+++ b/buggy.py
@@ -9,6 +9,8 @@
             count += 1
         if (i != k) and (A[k][i] == "W") and (A[i][k] == "L"):
             count += 1
+        if (i != k) and (A[i][k] == "D") and (A[k][i] == "D"):
+            count += 1
 if count == N**2:
     print("correct")
 else:
