April Challenge 2019 Division 2
Maximum Remaining, Friend or Girlfriend
February Challenge 2020 Division 2
No Change Required, The Theatre Problem, School of Geometry, Hard Cash, (Challenge) Raisins, Long Contest and Cook Off Overlaps
March Challenge 2020 Division 1
XOR Engine, Ada Bishop 2, Lasers Everywhere Alternative, Pintu and Fruits
April Challenge 2020 Division 1
Strange Number, Leaked Answers (Challenge), Ready Bitwise, Squared Subsequences
February Cook-Off 2020 Division 2
Penalty Shoot-Out II, Tax Slabs
March Cook-Off 2020 Division 1
Mysterious Sequence, Escape the Tree
February Lunchtime 2020 Division 2
At the Gates, Swapping to Palindrome, Not All Flavours
Vietnam