https://t.me/tictactoe_webapp_bot
(source: https://github.com/VladislavGordeyko/tic-tac-toe-web-app-contest/commit/7a515c2d7c1786b84a3967601362b262e3ae5195)

This application serves as a demo for online gaming and multiplayer interactions on Telegram. Using websockets, it offers a real-time Tic Tac Toe experience where users can play with friends through a Telegram bot.

Screenshots of the app

Great app! Animations look cool. But the bot is too clever, it's impossible to win the match against it. :D