September Mega Cook-Off 2018 Division 2
ATM Machine, Make a Permutation
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Adventures
December Challenge 2018 Division 2
Max and Electrical Panel, Chef and Interactive Contests, Chef and An Ideal Problem
November Challenge 2018 Division 2
Chef and Ridges, Chef, Primes and Trees (Challenge), Chef and Difficult Contests, Chef and Happiness
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
January Challenge 2019 Division 2
Different Neighbours, Lucky Number Game, Distinct Pairs, Chef and Modulo Game, Fancy Quotes
Plinth-Enigma'19 LNMIIT Techfest - (Rated for all)
XOR! Wait for it, Return of the Gargoyle King
February Challenge 2019 Division 2
Deputy Chef, Art of Balance, (Challenge) Chef with Orchestra in the Kitchen, Appy and Contest, Chef and Magical Jars, Guess It Right, Manhattan Rectangle, Chef and Secret Ingredients
March Challenge 2019 Division 2
(Challenge) Interleaving Strings, Chef and a Beautiful Digit, Yet Again a Subarray Problem, Chef and Number Game, Chef got Recipes
April Challenge 2019 Division 1
Friend or Girlfriend, Maximum Remaining, Fencing
June Challenge 2019 Division 1
Chef and Proxy, (Challenge) SnackDown 99, Sum and GCD, Chef and Ingredients, Lent Money
August Challenge 2019 Division 1
Guddu and his Mother, Dilemma, Maximize an Expression, Football, Distribute Apples, Zombie and the Caves
September Challenge 2019 Division 1
Easy Fibonacci, Chef and Interesting Subsequences
India