July Challenge 2018 Division 2
Reach Equilibrium, No Strings Attached, Strike or Spare, No Minimum No Maximum, Magic Set
August Challenge 2018 Division 2
Modular GCD, Problem Sort, Sheokand and Number, Spell Bob
September Challenge 2018 Division 1
Sasha and Photos, Table Game, Bad Shuffle
October Challenge 2018 Division 1
Minimize Digitsum, Chef and Surprise Chessboard, Appy and Balloons
April Challenge 2019 Division 1
Playing with Numbers, Subtree Removal
September Mega Cook-Off 2019 Division 1
Angry Grandfather, Fitness Exercises
May Cook-Off 2020 Division 1
Chef, Chefina and Their Friendship, Roads in Chefland
July Cook-Off 2020 Division 1
Even-tual Reduction, OR-thodox Distinction, Path-etic Products
June Cook-Off 2020 Division 1
Per Capita Income, Checkpoints
RECode 12.0 (Rated for all)
Chef and Rotation, Chef and Numbers, Chef and Walk, Chef and String
Coders' Legacy (Rated for all)
Chef vs Doof, Doof on Cartesian, Doof fires Brackets, Jeremy gets a gift
Code Ensemble (Rated for Division 2)
Cherry and Bits, Priya and AND, Traversing Trees, Help Martha, Priya and Parity
India