October Challenge 2019 Division 2
Missing Number, Phone Prices
November Challenge 2019 Division 2
Hard Sequence, Weapon Value
January Challenge 2020 Division 2
Chef and Dynamo, Doraemon, Breaking Bricks
February Challenge 2020 Division 2
The Theatre Problem, Hard Cash, School of Geometry, No Change Required
March Challenge 2020 Division 2
XOR Engine, Ada Bishop 2, Pintu and Fruits
April Challenge 2020 Division 2
Ready Bitwise, COVID Pandemic and Long Queue, Leaked Answers (Challenge), Sell All the Cars, Unit GCD, Squared Subsequences, Strange Number
May Challenge 2020 Division 2
Triple Sort, Coronavirus Spread, Isolation Centers
June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Covid Sampling (Challenge), Chef and String, Chef and Price Control
August Challenge 2020 Division 1
Smallest KMP, Chef and Wedding Arrangements
India