May Challenge 2017
Courses in an university, Chef and his daily routine, Chef and Subsequences, Median of adjacent maximum numbers
July Challenge 2017
Chef and Sign Sequences, Whats in the Name, Calculator
August Long Challenge 2017
Chef and Rainbow Array, Chef and Mover, Palindromic Game, Greedy Candidates
January Lunchtime 2018
Chef and Game with Sequence
February Challenge 2018
Broken Clock, Chef And His Characters, Chef And The Patents, Points Inside A Polygon, Car-pal Tunnel, Permutation and Palindrome
February Cook-Off 2018
Chef and Cook-Off, Chef and Tuples
April Lunchtime 2018 Division 2
Two vs Ten, The hardest gcd problem
April Challenge 2018 Division 1
Chef and Array (Challenge), Cutting Plants, Highway Crossing, Count Good Prefixes
May Challenge 2018 Division 1
Fake Binary Search, Dibs on Fibs
October Challenge 2018 Division 1
Chef and Surprise Chessboard, Minimize Digitsum, Beautiful Bricks, Appy and Balloons
LoC April 2018 (Rated for Division 2)
Perfect Necklace, Cricket Score, Bob and Pallindromes
February Challenge 2019 Division 1
Manhattan Rectangle, Guess It Right, Chef and Secret Ingredients, Art of Balance
October Challenge 2020 Division 2
Positive AND, Covid Run, Chef and Easy Queries
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