February Challenge 2019 Division 2
Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef
March Challenge 2019 Division 2
Chef got Recipes, Chef and Number Game, Chef and a Beautiful Digit
December Lunchtime 2019 Division 2
Stupid Machine, Check Algorithm
February Challenge 2020 Division 2
No Change Required, Long Contest and Cook Off Overlaps, Hard Cash, School of Geometry, The Theatre Problem
March Challenge 2020 Division 2
XOR Engine, Ada Bishop 2, Pintu and Fruits
April Challenge 2020 Division 2
Strange Number, COVID Pandemic and Long Queue, Leaked Answers (Challenge), Sell All the Cars, Unit GCD, Squared Subsequences
March Cook-Off 2020 Division 2
Mysterious Sequence, Find Your Gift, Box of Chocolates
April Cook-Off 2020 Division 2
Matrix Decomposition, Lift Requests
February Lunchtime 2020 Division 2
At the Gates, Not All Flavours
March Lunchtime 2020 Division 2 (Unrated)
Chef Swaps Digits, Good Prefix
April Lunchtime 2020 Division 2
Another Birthday Present!, Chef in Fantasy League
May Lunchtime 2020 Division 2
Weird Walk, Lost Weekends
India