diff --git a/ch09-lists-tuples-and-dictionaries/9d-challenge-cats-with-hats.py b/ch09-lists-tuples-and-dictionaries/9d-challenge-cats-with-hats.py
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index 0000000..03de4ae
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+++ b/ch09-lists-tuples-and-dictionaries/9d-challenge-cats-with-hats.py
@@ -0,0 +1,12 @@
+# 9.9 - Challenge: Cats With Hats
+# Alternative solution to challenge(nested loops)
+
+for i in range(1,101):
+# Counting number of actions with hat
+    count = 1
+    for j in range(1, i):
+        if i % j == 0:
+            count += 1
+# Determine what action was last
+    if count % 2 == 1:
+        print(f"Cat {i} has a hat.")
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