September Challenge 2017
Minimum Good Permutation, Chef and Pick Digit, Little Chef and Sums
October Challenge 2017
Max Mex, A Balanced Contest
December Challenge 2017
Total Diamonds, Chef And his Cake, Penalty Shoot-out, Chef and Hamming Distance of arrays
August Cook-Off 2017
From heaven to earth, Real obtuse
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers
January Lunchtime 2018
Chef and Game with Sequence
February Challenge 2018
Permutation and Palindrome
March Cook-off 2018 Division 2
Chef Goes to the Cinema, Chef Restores a Matrix, Chef Judges a Competition
September Challenge 2018 Division 2
Chef and Adventures, Magician versus Chef
Insomnia 2018 (Rated)
Split Sums, Strange Swaps
February Challenge 2019 Division 2
Chef and Secret Ingredients, Appy and Contest, Art of Balance, Deputy Chef
India