September Challenge 2017
Chef and Pick Digit, Little Chef and Sums, Minimum Good Permutation
October Challenge 2017
Max Mex, A Balanced Contest
March Challenge 2018 DIV 2
A Big Sale, Chef and Glove
March Lunchtime 2018 Division 2 (Unrated)
Chef and Friends, Magic Elements
September Challenge 2018 Division 2
Magician versus Chef, Chef and Adventures
November Challenge 2018 Division 2
Chef and Difficult Contests
October Challenge 2018 Division 2
Byte to Bit, Chef and Serves
February Challenge 2019 Division 2
Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef
March Challenge 2019 Division 2
Chef got Recipes, Chef and Number Game, Chef and a Beautiful Digit
June Challenge 2019 Division 2
Chef and Proxy, Road Signs
August Challenge 2019 Division 2
Dilemma, Football, Distribute Apples
December Challenge 2019 Division 2
Plus Multiply, That Is My Score!
March Challenge 2020 Division 2
XOR Engine, Pintu and Fruits
India