Four in a Row

How to play

Four in a Row basics.

You're red, the AI is yellow, and you go first. Take turns dropping discs into the grid.

1. Click or tap a column to drop a disc. Or use ← / → to pick a column, then Enter / Space / ↓ to drop.
2. Discs fall to the lowest open spot in that column.
3. Connect four in a row, in any direction, to win.
4. Grid fills up with no winner? That's a draw.
5. Switch difficulty any time to change how far ahead the AI thinks.

Restart game?

This throws away the current game and starts a new one.

Reset score?

Clears your win/loss/draw tally for every difficulty. Can't be undone.

Change difficulty?

This throws away the current game and starts a new one.