June Challenge 2017
Xenny and Coin Rankings, A Good Set
July Challenge 2017
Whats in the Name, Calculator , Chef and Sign Sequences
September Challenge 2017
Minimum Good Permutation, Little Chef and Sums
October Challenge 2017
Max Mex, A Balanced Contest
December Challenge 2017
Penalty Shoot-out, Chef And his Cake
March Challenge 2018 DIV 2
Chef and Easy Problem, A Big Sale, Mix the Colors, Chef and Glove, Minions and Voting, Minion Chef and Bananas
February Challenge 2019 Division 2
Deputy Chef, Art of Balance, Chef and Secret Ingredients, Chef and Magical Jars, Appy and Contest
April Challenge 2020 Division 2
Strange Number, Squared Subsequences, Ready Bitwise, Unit GCD, Sell All the Cars, COVID Pandemic and Long Queue
June Challenge 2020 Division 2
Chef and String, Chef and Price Control, Chef and Icecream, The Tom and Jerry Game!, Even Matrix
August Lunchtime 2021 Division 2
K-th Maximum, Crossing Blocks, Just a Graph
June Long One 2022 Division 2 (Unrated)
Full Path Eraser, Expected move, Reduce to zero, Divisible by i , Possible GCD, Alternate Additions, Equal Strings
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