February Challenge 2017
Chef and His Apartment Dues
March Challenge 2017
Xenny and Alternating Tasks, Bear and Extra Number
April Challenge 2017
Bear and Row 01, Similar Dishes
May Challenge 2017
Chef and his daily routine, Courses in an university
June Challenge 2017
A Good Set, Pairwise union of sets, Xenny and Coin Rankings
July Challenge 2017
Whats in the Name, Calculator
August Long Challenge 2017
Chef and Rainbow Array, Greedy Candidates
November Challenge 2017
Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
India