June Challenge 2017
A Good Set, Xenny and Coin Rankings, Triplets
July Cook-Off 2017
Chang and Bitwise OR, Chang and the Perfect Function
August Cook-Off 2017
Matrix and Chef, Real obtuse, From heaven to earth
March Lunchtime 2017
Bear and Ladder, Bear and Species
Alkhwarizm 2017 (Rated)
Logan and his XOR debacle
July Challenge 2018 Division 2
Magic Set, Strike or Spare
August Lunchtime 2018 Division 2
Chef and Problem Setting, Chef and Eid, Mix Mix Game
Russia