December Challenge 2018 Division 2
Chef and Interactive XOR, Chef and An Ideal Problem, Chef and Interactive Contests
November Challenge 2018 Division 2
Chef and Ridges, Chef and Difficult Contests
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
January Challenge 2019 Division 2
Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes, A Pizza Slice
February Challenge 2019 Division 2
Manhattan Rectangle, Guess It Right, Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Art of Balance, Deputy Chef
June Challenge 2019 Division 2
Chef and Proxy, Sum and GCD, Chef and Ingredients, Guddu on a Date, Lent Money, Road Signs
June Lunchtime 2019 Division 2
Ping Paja Pong, Magda and Silly Pairs
July Challenge 2019 Division 2
Parity Again, Minimum and Maximum, Chef and Mean
India