August Long Challenge 2017
Chef and Mover, Chef and Rainbow Array, Greedy Candidates, Palindromic Game
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
November Challenge 2017
Chef Hates Palindromes, Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
August Cook-Off 2017
Real obtuse, From heaven to earth
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle, String Merging, Partition the numbers
February Challenge 2018
Chef And His Characters, Chef And The Patents, Car-pal Tunnel, Permutation and Palindrome
September Mega Cook-Off 2018 Division 2
Make a Permutation, ATM Machine
September Lunchtime 2018 Division 2
Judging Delay, Opposite Cites, Chef Restaurant
October Lunchtime 2018 Division 2
Three Friends, Coloring the Grid, Weird Question
Encoder (Rated for Division 2)
Knight Chess, Second Largest Element, Paint the Wall
December Lunchtime 2018 Division 2
Print Pattern, Age Calculator
Plinth-Enigma'19 LNMIIT Techfest - (Rated for all)
XOR! Wait for it, Return of the Gargoyle King
February Challenge 2019 Division 1
Manhattan Rectangle, Guess It Right, Chef and Secret Ingredients, (Challenge) Chef with Orchestra in the Kitchen, Art of Balance
February Cook-Off 2019 Division 1
Max Range Queries, Chef and Party
April Challenge 2019 Division 1
Offer for Chef, Kira Loves Palindromes, Playing with Numbers, Subtree Removal
India