September Challenge 2016
Faded Palindromes, Chef and calculation, Chef and digits of a number
November Challenge 2016
Count Permutations, Chef and squares, Task for Alexey
August Cook-Off 2016
Tweedle-Dee and Tweedle-Dum
September Cook-Off 2016
Lazy Jem, The Lost Arithmetic Sequences
October Cook-Off 2016
Watson asks Does Permutation Exist, ChefWatson uses Social Network
July Lunchtime 2016
Drumpf for President!, Lumpy - The Bus Driver
January Lunchtime 2017
Sealing up, Nothing in Common
February Lunchtime 2017
Bear and House Queries, Bear and Milky Cookies
June Challenge 2017
Pairwise union of sets, Chef and the Feast, Triplets, A Good Set, Xenny and Coin Rankings
July Cook-Off 2017
Chang and Bitwise OR, Chang and the Perfect Function
September Cook-Off 2017
Infinite OR Game, Statistics Construction, Subsequence Equality
October Cook-Off 2017
Chef and Counting Test, Chef and Employment Test, Chef and Weird Queries
June Lunchtime 2017
Maximum Unique Segment, Two Numbers
September Lunchtime 2017
Chef and Dice, Chef and Cook-Off Contests
September Mega Cook-Off 2018 Division 2
ATM Machine, Make a Permutation
September Lunchtime 2018 Division 2
Judging Delay, Opposite Cites
United States