September Challenge 2017
Minimum Good Permutation, Little Chef and Sums, Chef and Pick Digit
October Challenge 2017
Chef and a great voluntary Program, Max Mex, Counter Test For CHEFSUM, A Balanced Contest
November Cook-Off 2018 Division 2
Truth and Dare, Beautiful Garland
February Challenge 2020 Division 2
Expected Change, Long Contest and Cook Off Overlaps, (Challenge) Raisins, Hard Cash, School of Geometry, The Theatre Problem, No Change Required, Chef and Railway Stations
March Cook-Off 2020 Division 1
Mysterious Sequence, Maximize Letter Beauty, Escape the Tree
India