A bot that competes in Ultimate-tic-tac-toe game on https://www.codingame.com
Last time checked, this algorithm achieved Gold out of [Wood, Bronze, Silver, Gold, Legend].
Game link: https://www.codingame.com/multiplayer/bot-programming/tic-tac-toe
Leaderboard link: https://www.codingame.com/multiplayer/bot-programming/tic-tac-toe/leaderboard?column=keyword&value=vicious987