March Challenge 2016
maximize the sum, Palindromic substrings
April Challenge 2016
Chef And Magical Path, Chef And Coloring, Chef and Ballons
September Challenge 2016
Chef and digits of a number
May Challenge 2017
Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers
February Challenge 2018
Chef And The Patents, Permutation and Palindrome, Car-pal Tunnel, Chef And His Characters
March Challenge 2018 DIV 2
A Big Sale, Mix the Colors, Chef and Glove
March Lunchtime 2018 Division 2 (Unrated)
Chef and Friends, Magic Elements
February Challenge 2019 Division 2
Deputy Chef, Appy and Contest, Chef and Magical Jars, Chef and Secret Ingredients
August Challenge 2019 Division 2
Dilemma, Football, Distribute Apples
December Challenge 2019 Division 2
Plus Multiply, That Is My Score!
January Challenge 2020 Division 2
Chef and Dynamo, Breaking Bricks
February Challenge 2020 Division 2
School of Geometry, Hard Cash, The Theatre Problem, No Change Required
April Challenge 2020 Division 2
Sell All the Cars, COVID Pandemic and Long Queue
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
May Lunchtime 2020 Division 2
Weird Walk, Lost Weekends
July Challenge 2020 Division 2
Ada King, Missing a Point, Chef and Card Game, Chef and Strings
