October Challenge 2016
Chef and Three Dogs, Chef and Keyboard
November Challenge 2016
Chef and squares, Task for Alexey
October Cook-Off 2016
Watson asks Does Permutation Exist
February Challenge 2017
Chef and His Apartment Dues
March Challenge 2017
Xenny and Alternating Tasks, Bear and Extra Number, (CH) Bear and Sorted Rows, Bandwidth of a matrix
April Challenge 2017
Dish Of Life, Bear and Row 01, Similar Dishes
May Challenge 2017
Chef and his daily routine
September Challenge 2017
Chef and Pick Digit, Minimum Good Permutation, Little Chef and Sums
March Challenge 2018 DIV 2
A Big Sale, Chef and Glove
India