December Challenge 2018 Division 2
Chef and An Ideal Problem, Chef and Interactive Contests
October Challenge 2019 Division 2
Even Edges, Chef and Maximum Star Value, Phone Prices
December Challenge 2019 Division 2
Binary XOR, Test Generation, Easy Subsequence Selection, Plus Multiply, Chefina and Ranges
December Lunchtime 2019 Division 2
The Evil Professor, Guess the number
January Challenge 2020 Division 2
Chef and Dynamo, Equality, Chefina and Prefix Suffix Sums, Breaking Bricks
February Challenge 2020 Division 2
No Change Required, Long Contest and Cook Off Overlaps, (Challenge) Raisins, Hard Cash, Expected Change, Chef and Railway Stations, School of Geometry
ENIGMA - PLINTH'20 LNMIIT (Rated for all)
Minion AND Range, Recruit Villagers
July Cook-Off 2020 Division 1
Even-tual Reduction, OR-thodox Distinction
July Lunchtime 2020 Division 1
Golomb Sequence, Binary Concatenation
June Lunchtime 2020 Division 2
Maximum AND, Chef and Demonetisation, Increasing Decreasing
RECode 12.0 (Rated for all)
Chef and String, Chef and Walk, Chef and Rotation, Chef and Numbers
Coders' Legacy (Rated for all)
Chef vs Doof, Doof on Cartesian, Doof fires Brackets
India