May Challenge 2018 Division 2
Minimum Deletions, Xor Again, Mighty Friend
September Challenge 2018 Division 2
Magician versus Chef, Chef and Adventures
December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
Code Melange (Rated)
XD Subsequences, The Deadly Sin, Candy Love
ProCon 2018 (Rated for all)
The Great Run, Kill them with your success
January Challenge 2019 Division 2
Fancy Quotes, Lucky Number Game, Distinct Pairs
March Challenge 2019 Division 2
Chef and Number Game, Chef and a Beautiful Digit
May Challenge 2019 Division 2
Matches, Reduce to One, Where to Build the Roads
June Challenge 2019 Division 2
Guddu on a Date, Sum and GCD, Chef and Ingredients, Lent Money, Chef and Proxy, Road Signs
June Cook-Off 2019 Division 2
Multiple Choice Exam, Eat Twice
July Challenge 2019 Division 2
Guess the Prime!, Parity Again, Codechef War, Circular Merging, Minimum and Maximum, Chef and Mean
India