December Challenge 2017
Chef And his Cake, Penalty Shoot-out, Chef and Hamming Distance of arrays, Total Diamonds
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers
January Cook-Off 2018
Multiple of 3, Survive in ChocoLand
March Challenge 2018 DIV 1
Chef and Easy Problem, Chef and Gcd Queries, Mix the Colors, Minions and Voting
October Mega Cook-Off 2018 Division 1
Binary Nim 2, Pumping Water
May Challenge 2018 Division 1
S-T Mincut, Dibs on Fibs, Fake Binary Search, Change the Signs
July Challenge 2018 Division 1
Reach Equilibrium, Chef and War with Taran (Challenge), No Minimum No Maximum, Gears
August Challenge 2018 Division 1
Coordinate Compression , Modular GCD, Interactive Matrix
March Lunchtime 2019 Division 1
Corrupted Seven-Segment Display, Travelling Saleschef
May Lunchtime 2019 Division 1 (Unrated)
Grid Tour, Reverse Maximisation
June Lunchtime 2019 Division 1
The Grux Permutation , Igzi and Burly Array
