May Cook-Off 2015
Devu and friendship testing
February Challenge 2017
Chef and His Apartment Dues
March Challenge 2017
Xenny and Alternating Tasks, Bear and Extra Number, Bandwidth of a matrix
April Challenge 2017
Dish Of Life, Bear and Row 01, Similar Dishes
May Challenge 2017
Courses in an university, Median of adjacent maximum numbers, Chef and his daily routine
June Challenge 2017
A Good Set, Xenny and Coin Rankings
April Cook-Off 2017
Bear and Candies 123, Bear and AB
September Lunchtime 2017
Chef and Cook-Off Contests
IOPC 2017 (Rated)
The Birthday Tears, Max Out
July Challenge 2020 Division 2
Chef and Card Game, Chef and Strings
Bangladesh