Pick X or O before the round starts. X always makes the first move, so the computer opens if you choose O. Then click a free square whenever it's your turn and keep building. Every move stays put, and the board slowly turns into a proper little puzzle.
- Choose X to move first, or O to let the computer start.
- Place one mark in an empty square on your turn.
- Build an unbroken line of at least five marks while watching the computer’s threats.
- Select New Game to end the current game and start again.
The rules, short and sweet
This is a 10×10, freestyle five-in-a-row game in the Gomoku family, played with X and O inside squares. A line of at least five wins, including six or more and lines blocked at both ends. There are no forbidden moves or opening swaps.
- Connect your marks horizontally, vertically, or diagonally without gaps.
- You cannot play in an occupied square or undo a move.
- X always moves first; then you and the computer alternate, placing one mark per turn.
- The game ends as soon as a winning line is formed. A full board without a winner is a draw.