May Challenge 2020 Division 2
Triple Sort, Isolation Centers, Coronavirus Spread
May Cook-Off 2020 Division 2
Impressing Chefina, Chef, Chefina and Their Friendship
June Challenge 2020 Division 2
Covid Sampling (Challenge), Chef and Price Control, Chef and String, Chef and Icecream, The Delicious Cake, The Tom and Jerry Game!, Even Matrix
July Challenge 2020 Division 1
Chefina and Swaps, Chef and Dragon Dens, Missing a Point, Doctor Chef
August Challenge 2020 Division 2
Chef and Wedding Arrangements, Smallest KMP, Chef and Linear Chess, Chef Wars - Return of the Jedi, Insanely Hard School Exams, Another Card Game Problem
September Challenge 2020 Division 2
Chefina and Swap, A Problem on Sticks, Chef and Trump Cards, Find XOR, Ada Matrix, Coronavirus Spread 2
July Cook-Off 2020 Division 1
Even-tual Reduction, OR-thodox Distinction
June Lunchtime 2020 Division 2
Maximum AND, Chef and Demonetisation, Increasing Decreasing, Gold Mining
SnackDown 2021 - Online Qualifiers
Lucky Number, Maximum Number Of Distinct Elements
SnackDown 2021 - Online Round 1A
Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM
India