March Challenge 2017
Xenny and Alternating Tasks
April Challenge 2017
Dish Of Life, Similar Dishes
June Challenge 2017
A Good Set, Xenny and Coin Rankings
July Challenge 2017
Chef and Sign Sequences, Whats in the Name, Calculator
February Challenge 2018
Chef And His Characters, Permutation and Palindrome, Chef And The Patents
March Challenge 2018 DIV 2
A Big Sale, Mix the Colors, Chef and Glove
June Challenge 2018 Division 2
Binary Shuffle, Naive Chef
July Challenge 2018 Division 2
Magic Set, Strike or Spare
August Challenge 2018 Division 2
Modular GCD, Problem Sort, Sheokand and Number, Spell Bob
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Adventures
November Challenge 2018 Division 2
Chef and Difficult Contests, Chef and Happiness, Appy Loves One, Chef and Ridges
January Challenge 2019 Division 2
Different Neighbours, Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining, Fencing
India