December Challenge 2018 Division 2
Chef and An Ideal Problem, Chef and Interactive Contests
November Challenge 2018 Division 2
Chef and Ridges, Chef and Difficult Contests
January Challenge 2019 Division 2
Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes
February Challenge 2019 Division 2
Appy and Contest, Deputy Chef, Chef and Secret Ingredients, Chef and Magical Jars
February Lunchtime 2019 Division 2
Average Number, The Tricky Deal
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining, Fencing
May Challenge 2019 Division 2
Matches, Where to Build the Roads, Reduce to One
June Challenge 2019 Division 2
Road Signs, Chef and Proxy, Guddu on a Date, Chef and Ingredients, Sum and GCD
June Cook-Off 2019 Division 2
Multiple Choice Exam, Ants and Anteaters, Eat Twice
July Challenge 2019 Division 1
Guess the Prime!, Chef and Mean , Minimum and Maximum, Parity Again
Code Melange (Rated for all)
Greg and Grid, A Small Array, Go Round, Max power
India