August Challenge 2016
Chef and Chocolate, Chef and Round Run
September Challenge 2016
Chef and Friends, Dividing Machine, Chef and digits of a number, Faded Palindromes, Chef and calculation
November Challenge 2016
Count Permutations, Gift and Chef, Chef and squares, Task for Alexey
December Challenge 2016
Train Partner, Kirito in labyrinth
August Cook-Off 2016
Tweedle-Dee and Tweedle-Dum
January Challenge 2017
Capital Movement, Cats and Dogs, Reservior, Tourists in Mancunia
March Challenge 2017
Cooking Schedule, Xenny and Alternating Tasks, Pishty and birthday, Bear and Extra Number, Bandwidth of a matrix
January Cook-Off 2017
Digit Longest Increasing Subsequences 2
June Cook-Off 2018 Division 2
Sonya and Segments, Archi and Comparsion, Good Permutations
India