February Challenge 2017
Chef and His Apartment Dues, Chef and Triangles, Gerrymander
April Challenge 2017
Dish Of Life, Bear and Row 01, Similar Dishes
June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets
July Challenge 2017
Chef and Sign Sequences, IPC Trainers, Calculator , Whats in the Name
August Long Challenge 2017
Chef and Rainbow Array, Palindromic Game, Greedy Candidates
June Lunchtime 2017
Two Numbers, Maximum Unique Segment
February Challenge 2018
Chef And His Characters, Chef And The Patents, Car-pal Tunnel, Permutation and Palindrome
March Challenge 2018 DIV 2
Chef and Glove, Minion Chef and Bananas, Minions and Voting, Mix the Colors, A Big Sale, Chef and Easy Problem, Pishty and Triangles
March Cook-off 2018 Division 1
Chef Goes to the Cinema, Chef Restores a Matrix
April Challenge 2018 Division 1
Chef and Array (Challenge), Highway Crossing, Count Good Prefixes
ALKHWARIZM (Rated)
Help Voldemort, Sam, The Charming Angel
India