diff --git a/OJ notes/pages/Leetcode Combinations.md b/OJ notes/pages/Leetcode Combinations.md
index 27a87aa..6fdd983 100644
--- a/OJ notes/pages/Leetcode Combinations.md	
+++ b/OJ notes/pages/Leetcode Combinations.md	
@@ -20,10 +20,12 @@ tag:#backtrack
 
 ##### Links:
 - [Link to problem](https://leetcode.com/problems/combinations/)
-- [Explanation]
+- [Explanation](https://leetcode.com/problems/combinations/discuss/844096/Backtracking-cheatsheet-%2B-simple-solution)
 ___
 ### Problem
 
+
+
 #### Examples
 
 #### Constraints
@@ -31,6 +33,9 @@ ___
 ### Thoughts
 
 > [!summary]
-> This is a #template_remove_me
+> This is a #backtrack problem
+
+The link I mentioned on the links section already have a good
+explanation on the topic.
 
 ### Solution