December Challenge 2017
Chef And his Cake, Total Diamonds, Penalty Shoot-out
October Cook-Off 2017
Chef and Employment Test, Chef and Weird Queries
March Challenge 2018 DIV 2
Chef and Easy Problem, A Big Sale, Mix the Colors, Chef and Glove, Minions and Voting, Minion Chef and Bananas
April Challenge 2018 Division 2
Chef and Array (Challenge), Workers, Average of Pairs, Count Good Prefixes, Highway Crossing, Weight of Numbers, Cutting Plants
August Challenge 2018 Division 2
Modular GCD, Problem Sort, Sheokand and Number, Spell Bob
May Cook-Off 2019 Division 2
Recover the Sequence, Misha and Nice Sets
May Lunchtime 2019 Division 2 (Unrated)
Dummy Palindromic Strings, CV
August Challenge 2019 Division 2
Guddu and his Mother, Dilemma, Football, Distribute Apples, Zombie and the Caves
September Mega Cook-Off 2019 Division 2
Two Groups, Playing with Matches
Code Melange (Rated for all)
A Small Array, Max power, Go Round, Greg and Grid
February Challenge 2020 Division 2
Chef and Railway Stations, No Change Required, The Theatre Problem, School of Geometry, Hard Cash, Long Contest and Cook Off Overlaps
March Challenge 2020 Division 2
XOR Engine, Ada Bishop 2, Pintu and Fruits
India