diff --git a/more/problem-sets-competitive-programming.md b/more/problem-sets-competitive-programming.md
index 9e94ab41..1b0f6972 100644
--- a/more/problem-sets-competitive-programming.md
+++ b/more/problem-sets-competitive-programming.md
@@ -83,6 +83,8 @@
 * [Anarchy Golf](http://golf.shinh.org)
 * [CareerCup](http://www.careercup.com)
 * [CheckIO](http://www.checkio.org)
+* [Codechef](https://www.codechef.com/problems/school)
+* [Codedrills](https://codedrills.io/competitive)
 * [Codeforces](http://codeforces.com/problemset)
 * [Codility](https://codility.com/programmers/)
 * [Coding Bat](http://codingbat.com/java)