August Challenge 2018 Division 2
Problem Sort, Sheokand and Number, Spell Bob, Modular GCD
February Challenge 2019 Division 2
Deputy Chef, Art of Balance, Yet Another Tree Problem, Appy and Contest, Chef and Secret Ingredients, Chef and Magical Jars, Guess It Right, Manhattan Rectangle, Xor Decomposition
April Challenge 2019 Division 2
Friend or Girlfriend, Fencing, Subtree Removal, Maximum Remaining, Playing with Numbers, Mininum XOR over Tree, Kira Loves Palindromes
SnackDown 2021 - Online Round 1A
Round Robin Ranks , Dance Moves, Equal Beauty, Min Max LCM
Taiwan