How to play: You are ✕ and the owl is ◯. Every level changes the rules:

• 🌱 Easy — get three in a row to win.
• ⭐ Medium — upside down! Make three in a row and you lose. The owl goes first.
• 🔥 Hard — only 3 marks each; place a 4th and your oldest vanishes first.
• 🏆 Expert — nine boards in one, and your square sends the owl to its board.