June Challenge 2016
Devu and an Array, Chef and Coins Game
October Challenge 2016
Chef and Three Dogs, Chef and Keyboard
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
January Challenge 2018
Maximum Score, Partition the numbers, String Merging, Rectangle, K-Concatenation
January Cook-Off 2018
Multiple of 3, Survive in ChocoLand
January Lunchtime 2018
Chef and Game with Sequence
February Challenge 2018
Permutation and Palindrome, Chef And The Patents, Chef And His Characters, Car-pal Tunnel
March Challenge 2018 DIV 2
Chef and Easy Problem, A Big Sale, Mix the Colors, Chef and Glove, Minion Chef and Bananas
March Cook-off 2018 Division 2
Chef Goes to the Cinema, Chef Judges a Competition
March Lunchtime 2018 Division 2 (Unrated)
Chef and Friends, Magic Elements, Three Integers
April Challenge 2018 Division 2
Weight of Numbers, Highway Crossing, Count Good Prefixes, Average of Pairs, Workers
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