January Lunchtime 2018
Chef and Game with Sequence
March Challenge 2019 Division 2
Chef and Number Game, Chef and a Beautiful Digit
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining, Fencing
June Challenge 2019 Division 2
Sum and GCD, Chef and Ingredients, Guddu on a Date, Lent Money, Chef and Proxy, Road Signs
June Cook-Off 2019 Division 2
Multiple Choice Exam, Eat Twice
June Lunchtime 2019 Division 2
Ping Paja Pong, Magda and Silly Pairs
July Challenge 2019 Division 2
Parity Again, Minimum and Maximum, Chef and Mean
July Cook-Off 2019 Division 2
Birthday Gift Again, Playing with Strings
August Challenge 2019 Division 2
Football, Distribute Apples, Zombie and the Caves, Dilemma
April Challenge 2020 Division 2
Sell All the Cars, COVID Pandemic and Long Queue, Leaked Answers (Challenge), Unit GCD, Ready Bitwise, Squared Subsequences, Strange Number
April Cook-Off 2020 Division 2
Matrix Decomposition, Lift Requests
September Challenge 2020 Division 2
Chefina and Swap, A Problem on Sticks, Chef and Trump Cards, Find XOR, Ada Matrix, Coronavirus Spread 2
India