September Challenge 2018 Division 2
War of XORs, Chef and Adventures, Bad Shuffle, Magician versus Chef
August Challenge 2019 Division 2
Guddu and his Mother, Encoding, Dilemma, Chef and Gordon Ramsay, Football, Distribute Apples, Zombie and the Caves
August Cook-Off 2019 Division 1
Warriors, Two Circles, Rich Substrings
September Challenge 2019 Division 1
Biladerim Icin, Fuzzy Linear Combinations, Expected GCD, Doofish Set, Chef Designed a Network
October Challenge 2019 Division 1
Even Edges, (Challenge) Maximizing LIS, Array Modification, Chef and Maximum Star Value, Bacterial Reproduction
October Lunchtime 2019 Division 1 (Unrated)
Counting Inversions Again!, Box Game
December Lunchtime 2019 Division 1
The Evil Professor, Guess the number
January Cook-Off 2020 Division 1
Profitable Paths, Range AND, Chefina and Sums
January Lunchtime 2020 Division 1
Construct Array, Under the Tunnels
March Lunchtime 2020 Division 1 (Unrated)
Maximize LCM, Strip in a Tree!, Chef and Secret Recipe
Russia