September Challenge 2017
Sereja and Commands, Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
October Challenge 2017
Chef and a great voluntary Program, Max Mex, Counter Test For CHEFSUM, A Balanced Contest
November Challenge 2017
Chef goes Left Right Left, Villages and Tribes, Periodic Palindrome Construction, Chef Hates Palindromes
December Challenge 2017
Total Diamonds, Chef And his Cake, Penalty Shoot-out, Chef and Hamming Distance of arrays
September Lunchtime 2017
Chef and Cook-Off Contests
January Challenge 2018
Partition the numbers, String Merging, Maximum Score, K-Concatenation, Rectangle
February Challenge 2018
Broken Clock, Chef And His Characters, Chef And The Patents, Car-pal Tunnel, Permutation and Palindrome
September Mega Cook-Off 2018 Division 1
OneTwo, Make a Permutation
October Mega Cook-Off 2018 Division 1
Binary Nim 2, Pumping Water
July Challenge 2018 Division 1
Reach Equilibrium, No Minimum No Maximum
Quick Code (Rated for Division 2)
Immortal Frieza, Majin Vegeta, Dr Geros lab
ProCon 2018 (Rated for all)
The Great Run, Kill them with your success
March Cook-Off 2020 Division 1
Mysterious Sequence, Maximize Letter Beauty, Escape the Tree
India