June Challenge 2018 Division 2
Vision, Sheokand and String, Binary Shuffle, Naive Chef, Two Flowers
July Challenge 2018 Division 2
No Strings Attached, Strike or Spare, Magic Set, Gears, No Minimum No Maximum, Reach Equilibrium
February Challenge 2019 Division 1
Manhattan Rectangle, Guess It Right, Chef and Secret Ingredients, Xor Decomposition, Art of Balance
August Challenge 2019 Division 1
Encoding, Chef and Gordon Ramsay, Maximize an Expression, Dilemma, Guddu and his Mother
September Challenge 2019 Division 1
Biladerim Icin, Fuzzy Linear Combinations, Expected GCD, Doofish Set, Power Sum, Chef Designed a Network
October Challenge 2019 Division 1
Even Edges, Bacterial Reproduction, Chef and Maximum Star Value, Array Modification
December Challenge 2019 Division 1
Chefina and Ranges, Binary XOR, Sticky Notes, Addition
Taiwan