Start with the kids game Tic-Tac-Toe and end with the ancient strategy board game Gomoku.
This games throws increasingly tougher AI at you, with increasingly more complex game rules, in the span of 9 levels. If you can't beat level 1, you might be a child. If you can beat level 9, you are Galaxy Brain.
Version history
1.7.8
2022-05-13
Minor tweaks thanks to an upgrade of the underlying technology, and a new confetti animation.