December Challenge 2018 Division 2
Chef and Interactive Contests
November Challenge 2018 Division 2
Appy Loves One, Chef and Difficult Contests, Chef and Happiness, Chef and Ridges
October Challenge 2019 Division 2
Operations on a Matrix, Phone Prices
October Lunchtime 2019 Division 2
Khaled in HIT, Counting Inversions Revisited, Box Game
November Challenge 2019 Division 2
Physical Exercise, Hard Sequence, A Simple Game, Weapon Value, Chef and Minimum Colouring
December Challenge 2019 Division 2
Addition, That Is My Score!, (Challenge) Cubical Virus, Sticky Notes, Binary XOR, Plus Multiply, Chefina and Ranges, Easy Subsequence Selection
February Challenge 2020 Division 1
Chef and Railway Stations, Expected Change, No Change Required, The Theatre Problem, School of Geometry, Hard Cash, (Challenge) Raisins, Long Contest and Cook Off Overlaps
D'Code Division 2 (Rated)
Full Barrier Alchemist, The Promised Land
August Challenge 2020 Division 1
Insanely Hard School Exams, Subsequence Frequency Counting, Smallest KMP, Chef Thanos Wants Perfect Balance, Chef and Wedding Arrangements
September Challenge 2020 Division 1
Chefina and Swap, Chef and Trump Cards, Find XOR, Move the Coins - Creating Tests, Divide Candies, Ada Matrix
India