March Challenge 2019 Division 2
Chef and Number Game, Chef and a Beautiful Digit
February Challenge 2020 Division 2
School of Geometry, Hard Cash
April Challenge 2020 Division 2
Strange Number, Sell All the Cars, COVID Pandemic and Long Queue
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
February Cook-Off 2020 Division 2
Penalty Shoot-Out II, Tax Slabs
April Cook-Off 2020 Division 2
Matrix Decomposition, Lift Requests
May Lunchtime 2020 Division 2
Weird Walk, Convert the String, Lost Weekends
June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control
July Challenge 2020 Division 2
Ada King, Chef and Strings, Chef and Card Game, Missing a Point, Chefina and Swaps, Doctor Chef
August Challenge 2020 Division 2
Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP
August Lunchtime 2020 Division 2
Game on a Strip, Mode of Frequencies
RECode 12.0 (Rated for all)
Chef and String, Chef and Numbers
December Cook-Off 2020 Division 2
Self-Destructing Strings, Minimum Attendance Requirement
December Lunchtime 2020 Division 2 (Unrated)
Three Letters, One Zero Swaps, Sed Sequences
February Challenge 2021 Division 3
Frog Sort, Team Name, Chef and Meetings, Prime Game, Maximise Function, Highest Divisor
March Challenge 2021 Division 2
Interesting XOR!, Space Arrays
India