October Challenge 2017
A Balanced Contest, Max Mex
September Mega Cook-Off 2018 Division 2
Make a Permutation, ATM Machine
September Challenge 2018 Division 2
Magician versus Chef, Chef and Adventures
November Challenge 2018 Division 2
Chef and Ridges, Appy Loves One, Good Median, Chef, Primes and Trees (Challenge), Magician versus Chef 2, Chef and Difficult Contests, Chef and Happiness
October Challenge 2018 Division 2
Minimize Digitsum, Chef and Circles, Byte to Bit, Chef and Serves, Appy and Balloons
October Lunchtime 2018 Division 2
Three Friends, Coloring the Grid, Weird Question
Encoder (Rated for Division 2)
Knight Chess, Paint the Wall
February Challenge 2019 Division 1
Art of Balance, Xor Decomposition, Chef and Secret Ingredients, Manhattan Rectangle, Guess It Right
March Challenge 2019 Division 1
Chef and Soccer, Cheating on Queue, Yet Again a Subarray Problem, Matchable Permutations, (Challenge) Interleaving Strings
April Challenge 2019 Division 1
Offer for Chef, Kira Loves Palindromes, Playing with Numbers, Subtree Removal, Moving Rectangles (Challenge)
August Challenge 2019 Division 1
Guddu and his Mother, Complement Spanning Trees, Chef and Gordon Ramsay, Maximize an Expression, Dilemma, Encoding
September Challenge 2019 Division 1
Biladerim Icin, Fuzzy Linear Combinations, Expected GCD, Doofish Set, Chef Designed a Network, (Challenge) Sebi and CPU Design
India