February Challenge 2017
Gerrymander, Chef and His Apartment Dues
May Challenge 2017
Chef and his daily routine, Courses in an university, Blocked websites, Median of adjacent maximum numbers, Chef and Subsequences, Chef and Sub Array
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets
August Long Challenge 2017
Chef and Rainbow Array, Greedy Candidates, Palindromic Game, Chef and Mover, Chef And Fibonacci Array
March Challenge 2018 DIV 1
Mix the Colors, Minions and Voting, Chef and Easy Problem
March Cook-off 2018 Division 2
Chef Goes to the Cinema, Chef Restores a Matrix, Chef Judges a Competition
July Challenge 2018 Division 1
Reach Equilibrium, Chef and War with Taran (Challenge), No Minimum No Maximum, Gears
September Challenge 2018 Division 1
AND Square Subsegments, Bad Shuffle, Table Game
April Challenge 2019 Division 1
Offer for Chef, Kira Loves Palindromes, Playing with Numbers, Subtree Removal
SnackDown 2021 - Online Round 1B
Queens Placement , Largest Laddu, Help Nishant
Indonesia