March Challenge 2020 Division 2
Ada Bishop 2, Pintu and Fruits, XOR Engine
April Challenge 2020 Division 2
Strange Number, Squared Subsequences, Ready Bitwise, Factor Tree, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue
August Challenge 2020 Division 1
Smallest KMP, Chef and Wedding Arrangements, Subsequence Frequency Counting, Insanely Hard School Exams
September Challenge 2020 Division 1
Chefina and Swap, Chef and Trump Cards, Find XOR, Move the Coins - Creating Tests, Divide Candies, Ada Matrix
February Challenge 2021 Division 1
Team Name, Another Tree with Number Theory, Prime Game, Multiple Games, XOR Sums
March Cook-Off 2021 Division 1
Consecutive Deletions, Chef and Sorting
India