Play a friend on another device. Create a room and send them the link — no account needed.
Not connected
You win!
Five in a row.
Tap a square to play · N new game · U undo · M mute · H help
How to play
Players take turns placing X and O on the 30×30 board.
On a small screen the board is bigger than the view — drag to scroll around it.
First to get five in a row — across, down or diagonally — wins.
With “Blocked five doesn't win” on (the common Vietnamese rule), a five with the opponent's stones capping both ends does not count.
The first move alternates every game.
Online: create a room, send the link to a friend and wait for them to open it. The game runs directly between your two browsers — there is no game server.
Tip: an open four (four with both ends empty) can't be stopped. Watch for open threes and block them early.