1. The game is played on a 3x3 grid.
2. Players take turns placing their symbol (X or O) in empty cells.
3. The first player to get 3 of their symbols in a row (horizontally, vertically, or diagonally) wins.
4. If all cells are filled and no player has won, the game is a draw.
5. Use arrow keys to navigate and space/enter to place your symbol.
6. The undo button allows you to revert your last move.