The Tic-tac-toe hole will go live in approximately . Why not try and solve it ahead of time?

Rankings: Languages

Julia in bytes.

# Hole Medal
1st Catalan’s Constant 🥉
2nd Highly Composite Numbers 🥈
3rd Morse Decoder 🥈
4th p-adic Expansion 🥇
5th Semiprime Numbers 🥈
6th γ 🥇