June Challenge 2017
A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets, Chef and Prime Queries
August Challenge 2018 Division 2
Coordinate Compression , Modular GCD, Problem Sort, Sheokand and Number, Spell Bob
October Challenge 2018 Division 1
Chef and Surprise Chessboard, Distinct Rows in Submatrices, Chef and Circles, Byte to Bit, Chef and Serves, Coprime Components, Minimize Digitsum, Beautiful Bricks, Appy and Balloons
October Lunchtime 2018 Division 1
Coloring the Grid, Weird Question, Niceness of the Arrays
May Lunchtime 2019 Division 1 (Unrated)
Grid Tour, Reverse Maximisation
June Challenge 2019 Division 1
Lent Money, Chef and Ingredients, Sum and GCD
