Play Vanishing XOX

You only get 3 marks. Place a new one and your oldest vanishes.

How many players

Played by 1 or 2: solo against the computer, or online against another player.

Online: create a room and send the link to a friend, or get matched with a random opponent. If nobody shows up, we offer a clearly labeled computer opponent.

Goal: First to line up three marks across, down or diagonally wins.

On a 3x3 board, you take turns placing your mark on an empty square.
You can have at most 3 marks on the board. Place a 4th and your oldest one vanishes.
Your shaking mark is the one that disappears on your next move.
If your three are in a line after the new mark goes down and the oldest leaves, you win.
If nobody lines up three in 30 moves total (15 each), it’s a draw.

You can’t place on a taken square; the square of your own mark that is about to vanish counts as taken too.
Each new round, the first move switches to the other side.
Bot levels: Easy mostly plays at random. Medium always takes a ready win and never leaves you one. Hard has the whole game solved.

Touch: Tap an empty square.
Keyboard: Keys 1–9 pick a square (1 top left, 9 bottom right). In solo play, Enter or Space starts a new round once one ends.

You have 60 seconds per move; run out and you lose.
If you disconnect, you have 60 seconds to come back or your opponent wins. Leaving the game also hands them the win.
A rematch needs both of you to say yes; the first move switches sides in the rematch.

Watch your opponent’s shaking mark too: that square frees up on their next move.
About to complete three? Check whether losing your oldest mark breaks it. Think one move ahead.

Four Stones: Line up four stones across, down or diagonally. First to four takes it.
Admiral Down: Hide your ships and send your rival's fleet to the bottom before they get yours.
Backgammon: Your dice, your tactics. Bear off first and gammon them before they gammon you.
Mangala: Sow stones pit by pit, then raid your rival’s treasure with the last one.
Turkish Checkers: Pieces move forward and sideways, and capturing is a must. Crown a king and sweep the board.
Nine Stones: Line up three, steal a stone. Whoever drops to two is out.