Play Gomoku, the classic five-in-a-row game, free in your browser. Place X and O marks on a 15×15 board and connect five before the computer does.
Tap a cell to place your mark, or drag to aim with the floating cursor. Connect five in a row — across, down or diagonally — to win.
Gomoku — also known as Five in a Row, Gobang, or Cờ Caro in Vietnam — is one of the oldest and most widely played abstract strategy games in the world. Its roots reach back to ancient China and Japan, where it was played with Go stones on a wooden board. The same game later spread across notebooks and classroom desks everywhere, scribbled in pen as X and O marks, which is exactly how millions of people first learned it.
The rules are wonderfully simple. You and the computer take turns placing your mark on a 15×15 grid. The first to line up five of their own marks in an unbroken row — horizontally, vertically or diagonally — wins the game. There is nothing to memorise and no setup: every match starts on an empty board and is decided purely by the moves you make.
Behind that simplicity sits real tactical depth. Skilled play is all about creating threats — rows that are one move away from five — and especially double threats that cannot all be blocked at once. This browser version lets you play instantly against a computer opponent on three difficulty levels, with no download, no account and no ads interrupting the board.
Gomoku is a two-player strategy game played on a 15×15 grid. Players alternate placing marks, and the first to make five in a row — across, down or diagonally — wins. It is also called Five in a Row, Gobang and, in Vietnam, Cờ Caro.
You win the moment you connect five of your own marks in a straight, unbroken line in any direction. The key skill is building several threats at once so your opponent cannot block them all.
They share the idea of lining up marks, but they are different games. Gomoku uses a much larger 15×15 board and needs five in a row instead of three, which gives it far deeper strategy. Careful tic-tac-toe almost always ends in a draw; Gomoku rarely does.
Yes. Cờ Caro is simply the Vietnamese name for Gomoku, the classic five-in-a-row game traditionally drawn as X and O marks on grid paper. The rules are identical.
On a completely open board the first player has a strong advantage and, with perfect play, can force a win. This version keeps matches enjoyable by offering Easy, Medium and Hard opponents instead of strict tournament rules.
Yes. Tap a cell to place your mark, or press and drag to move a floating cursor so your fingertip never hides the target square — then lift to confirm. The board scales to fit any screen.