October Challenge 2016
Fenwick Iterations, Chef and Keyboard, Chef and Three Dogs
November Challenge 2016
Count Permutations, Friends Meeting, Gift and Chef, Chef and squares, Task for Alexey
December Challenge 2016
Train Partner, Kirito in labyrinth, Our Base is Under Attack
November Lunchtime 2016
Chef and his Students, Chef and Square Set
January Challenge 2017
Capital Movement, Cats and Dogs, Reservior
March Challenge 2017
Bandwidth of a matrix, Bear and Extra Number, Cooking Schedule, Xenny and Alternating Tasks
June Challenge 2017
A Good Set, Xenny and Coin Rankings
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle, Partition the numbers
July Cook-Off 2018 Division 2
Encoding Message, OR Matrix, Chef and GCD Game
August Cook-Off 2018 Division 2
GukiZ and Candies, Balsa For The Three, Mixi Game
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Adventures, Table Game, Bad Shuffle
ProCon 2018 (Rated for all)
The Great Run, Kill them with your success, Awkward Pairs, Algebra Score
India