January Challenge 2015
Chef and Stones, Chef and A Large Permutation
February Challenge 2015
Chef and Chain, Chef and Equality
August Challenge 2015
Gravity Guy, Cooking Machine, Aditi and Magic Trick
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix
October Challenge 2015
Who dares to be a millionaire, Time measure, Count Subarrays
August Cook-Off 2015
Chef and the Wildcard Matching
July Challenge 2016
Andrash and Stipendium, Chefland and Electricity
September Challenge 2016
Chef and digits of a number, Faded Palindromes
June Lunchtime 2016
Collisions, One more weird game
India