December Challenge 2018 Division 2
Chef and An Ideal Problem, Chef and Interactive Contests
November Challenge 2018 Division 2
Chef and Difficult Contests
May Lunchtime 2020 Division 2
Weird Walk, Lost Weekends
UWCOI 2020 (Rated for all)
Button Pairs, Find maximum in an Array
July Challenge 2020 Division 2
Ada King, Missing a Point, Chef and Card Game, Chef and Strings
January Challenge 2021 Division 3
Fair Elections, Encoded String, Point Of Impact, Chef and Division 3
April Challenge 2021 Division 3
Valid Pair, World Record, Strong Language
July Challenge 2021 Division 3 (Rated)
XxOoRr, Maximum Production, Relativity
September Challenge 2021 Division 3 (Rated)
Shuffling Parities, Airline Restrictions, Travel Pass
India