August Long Challenge 2017
Chef and Rainbow Array, Chef and Mover, Palindromic Game, Greedy Candidates
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
July Challenge 2018 Division 2
Reach Equilibrium, No Minimum No Maximum, Magic Set, Strike or Spare, No Strings Attached
August Challenge 2018 Division 2
Spell Bob, Sheokand and Number, Modular GCD, Problem Sort
February Challenge 2020 Division 2
The Theatre Problem, School of Geometry, Hard Cash
CodeChef Starters 17 Division 3 (Rated)
Binary Inversion, GCD of Prefixes, Chef on Vacation, New Piece
Code Drive Division 2 (Rated)
Again XOR problem, Maximum Factors Problem, Count Number of Peaks
Thailand