December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
ProCon 2018 (Rated for all)
The Great Run, Kill them with your success
January Challenge 2019 Division 2
Distinct Pairs, Fancy Quotes, Chef and Modulo Game, Lucky Number Game
February Lunchtime 2019 Division 2
Average Number, The Tricky Deal
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining, Fencing
June Challenge 2019 Division 2
Sum and GCD, Chef and Ingredients, Lent Money, Chef and Proxy, Road Signs, Guddu on a Date
July Challenge 2019 Division 2
Parity Again, Minimum and Maximum, Chef and Mean
August Challenge 2019 Division 2
Guddu and his Mother, Dilemma, Football, Distribute Apples, Zombie and the Caves
October Challenge 2019 Division 2
Array Modification, Phone Prices, Operations on a Matrix, Chef and Maximum Star Value, Missing Number, Even Edges
November Challenge 2019 Division 1
Physical Exercise, A Simple Game
December Challenge 2019 Division 1
Chefina and Ranges, Binary XOR, Sticky Notes, Addition
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon, Doofish Matrix, Chefina and Prefix Suffix Sums, English
India