October Challenge 2017
Max Mex, A Balanced Contest
August Lunchtime 2019 Division 2
Eidi Gift, Destroy Cells, Chef and Trip
October Challenge 2019 Division 2
Phone Prices, Operations on a Matrix, Array Modification, Chef and Maximum Star Value, Bacterial Reproduction, Missing Number, Even Edges
October Lunchtime 2019 Division 1 (Unrated)
Counting Inversions Again!, Box Game
November Challenge 2019 Division 1
Physical Exercise, Smallest Beautiful Number, From Zero to Infinity, Single Point of Failure
November Lunchtime 2019 Division 1
Planting Trees, Washing Windows, Perfection
December Challenge 2019 Division 1
Addition, Sticky Notes, Chefina and Ranges, Binary XOR
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon, Doofish Matrix, Chefina and Prefix Suffix Sums, English, Chefland Army, (Challenge) Building Anthills
April Challenge 2020 Division 1
Strange Number, Squared Subsequences, Ready Bitwise, Leaked Answers (Challenge)
January Cook-Off 2020 Division 1
Chefina and Sums, Range AND
March Cook-Off 2020 Division 1
Mysterious Sequence, Maximize Letter Beauty, Escape the Tree
April Cook-Off 2020 Division 1
Tower Counting, Simple Operations
February Lunchtime 2020 Division 1
Swapping to Palindrome, Monsters Battle, Secret Mission
ENIGMA - PLINTH'20 LNMIIT (Rated for all)
Corruption in Freedonia, Gru is Handing Out Bananas, Minion AND Range, Recruit Villagers
India