September Challenge 2016
Chef and digits of a number, Chef and Friends, Chef and calculation, Faded Palindromes
October Challenge 2016
Chef and Keyboard, Chef and Three Dogs
September Cook-Off 2016
Lazy Jem, The Lost Arithmetic Sequences
August Cook-Off 2018 Division 2
GukiZ and Candies, Mixi Game, Balsa For The Three
August Challenge 2018 Division 2
Modular GCD, Spell Bob, Sheokand and Number, Problem Sort
September Challenge 2018 Division 1
Chef and Condition Zero (Challenge), Table Game, Bad Shuffle
August Lunchtime 2018 Division 1
Chef and Eid, Mix Mix Game
September Lunchtime 2018 Division 1
Chef Restaurant , Opposite Cites
July Challenge 2019 Division 1
Hit the Coconuts, Guess the Prime!, Codechef War, Circular Merging
August Challenge 2019 Division 1
Guddu and his Mother, Encoding, Dilemma, Maximize an Expression, Chef and Gordon Ramsay, Complement Spanning Trees
September Challenge 2019 Division 1
Biladerim Icin, Fuzzy Linear Combinations, Expected GCD, Doofish Set, Chef Designed a Network
April Challenge 2020 Division 1
Strange Number, Squared Subsequences, Perfect Power Divisors, Ready Bitwise, Leaked Answers (Challenge)
Bosnia and Herzegovina