August Long Challenge 2017
Chef and Mover, Chef and Rainbow Array, Greedy Candidates, Palindromic Game
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Fill The Matrix, Little Chef and Sums
October Challenge 2017
Max Mex, A Balanced Contest
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Condition Zero (Challenge), Chef and Adventures, Table Game, Bad Shuffle
December Challenge 2018 Division 1
Chef and Interactive XOR, (Challenge) Delete DAG, Max and Electrical Panel
November Challenge 2018 Division 1
Appy Loves One, Chef, Primes and Trees (Challenge), Magician versus Chef 2
October Challenge 2018 Division 1
Appy and Balloons , Beautiful Bricks, Minimize Digitsum, Chef and Surprise Chessboard
February Challenge 2019 Division 1
Manhattan Rectangle, Guess It Right, Chef and Secret Ingredients, Xor Decomposition, (Challenge) Chef with Orchestra in the Kitchen, Art of Balance
July Challenge 2020 Division 1
Chefina and Swaps, Missing a Point
