March Challenge 2018 DIV 2
A Big Sale, Mix the Colors, Chef and Glove, Minions and Voting
April Challenge 2018 Division 2
Workers, Average of Pairs, Count Good Prefixes, Highway Crossing, Weight of Numbers
July Challenge 2018 Division 2
Reach Equilibrium, Magic Set, Strike or Spare, No Strings Attached
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Adventures, Table Game, Bad Shuffle
July Lunchtime 2018 Division 2
Split Stones, Forced Particles
India