September Cook-Off 2012
Recipe Reconstruction, Prime Permutations, Coal Scam, Carvans
October Challenge 2016
Chef and Keyboard, Chef and Three Dogs
January Challenge 2017
Tourists in Mancunia, Reservior, Digits Cannot Separate, Fantastic Four, Chef and Circle, Sereja and BOX, Sereja and Circles, Cats and Dogs, Capital Movement, Coprime 6-tuples
March Challenge 2017
Pishty and birthday, Bandwidth of a matrix, (CH) Bear and Sorted Rows, Bear and Extra Number, Xenny and Alternating Tasks, Completing favorite game, Cooking Schedule
April Challenge 2017
Similar Dishes, Bear and Clique Distances, Bear and Row 01, Dish Of Life, Stable market, Chef and Divisor Tree, Bear and Random Grid, (CH) Serejs and Billiards, Chef and Digits, Heavy-Light Decomposition
May Challenge 2017
Chef and his daily routine, Chef and Subsequences, Median of adjacent maximum numbers, Blocked websites, Courses in an university, Gotham PD, Long Sandwich , Chef and Sub Array
June Challenge 2019 Division 1
Lent Money, (Challenge) SnackDown 99, Forgotten Tree 9, Sum and GCD, Intersecting Paths, Chef and His Dish, Chef and Ingredients, Count Arrays
April Challenge 2020 Division 1
Strange Number, Squared Subsequences, Perfect Power Divisors, Ready Bitwise, Leaked Answers (Challenge)
