August Challenge 2019 Division 2
Dilemma, Football, Distribute Apples, Zombie and the Caves
December Challenge 2019 Division 2
Plus Multiply, That Is My Score!
January Challenge 2020 Division 2
Chef and Dynamo, Doraemon, Breaking Bricks
February Challenge 2020 Division 2
Long Contest and Cook Off Overlaps, Hard Cash, School of Geometry, The Theatre Problem, No Change Required
April Challenge 2020 Division 2
Strange Number, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
April Challenge 2021 Division 3
Chef and Dice, Valid Pair, World Record, Strong Language
India