July Challenge 2021 Division 3 (Rated)
Chef vs Bharat, Optimal Denomination, Maximum Production, Relativity, K Path Query, XxOoRr
August Challenge 2021 Division 2 (Unrated)
Charge Scheduling, Olympics Ranking, Problem Difficulties, Chef and Bulb Invention, Array Filling, Special Triplets
August Cook-Off 2021 Division 2
Different String, Chef and Closure, Equal Difference
September Challenge 2021 Division 2 (Unrated)
XOR Equal, Shuffling Parities, Airline Restrictions, Travel Pass
SnackDown 2021 - Online Qualifiers
Minimise Difference, Lucky Number, Maximum Number Of Distinct Elements
CodeChef Starters 12 Division 2 (Unrated)
Make it Divisible, Maximum Points
CodeChef Starters 13 Division 2 (Rated)
Chef in Vaccination Queue, Maximum Light Up, Magical Doors
CodeChef Starters 14 Division 2 (Unrated)
Odd GCD, Diagonal movement, FIXFIX
October Challenge 2021 Division 2 (Unrated)
Longest AND Subarray, Digit Removal, MEX-OR
October Lunchtime 2021 Division 2
Exactly N plus 1 Values, Chef and Water Car
SnackDown 2021 - Online Round 1A
Round Robin Ranks , Dance Moves, Min Max LCM
SnackDown 2021 - Online Round 1B
Queens Placement , Largest Laddu
December Challenge 2021 Division 2 (Unrated)
Increasing String , Valleys and Hills, Rock Paper Scissors, Pyramid Traversal, List of Lists, Squares Counting
December Lunchtime 2021 Division 2
Maximum Trio, Romantic Reversals
Malaysia