March Challenge 2017
Completing favorite game, Sum of distances, Path Triples On Tree, Xenny and Alternating Tasks, Pishty and birthday, Bear and Extra Number, Bear and Cat Trap, Bandwidth of a matrix, Cooking Schedule
October Challenge 2017
Shooting on the array, Lucky Edge, A Balanced Contest, Counter Test For CHEFSUM, Chef and Horcrux, Max Mex, Chef and Cycled Cycles, Chef and a great voluntary Program, Chef and Magic Arrays
March Cook-Off 2017
Rainbow Graph, Yet Another Card Game, Increasing Xor Sequence, Safe Robot
September Cook-Off 2017
Infinite OR Game, Mixing Colors, Subsequence Equality, Numbers Game, Statistics Construction
International Coding League (Rated)
Cards Game, Worst Case Analysis, Watermelon Farmer
July Challenge 2018 Division 1
Pizza Delivery, Reach Equilibrium, No Minimum No Maximum, Gears
September Challenge 2018 Division 1
Sasha and Photos, Bad Shuffle, Table Game, Factorize, Chef and Condition Zero (Challenge), Chef and Lost Story, Selinas the Chefs Falling on the Tree, AND Square Subsegments
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon, Doofish Matrix, Chefina and Prefix Suffix Sums, English
Russia