The goal of Tic Tac Toe is to be the first player to get three in a row on a 3x3 grid, or four in a row in a 4x4 grid or n in a row in a nxn grid.
RULES for nxn board:
- X always goes first.
- Players alternate placing Xs and Os on the board until either (a) one player has four in a row, horizontally, vertically or diagonally; or (b) all 16 squares are filled.
- If a player is able to draw four Xs or four Os in a row, that player wins.
- If all 16 squares are filled and neither player has four in a row, the game is a draw.
A new game can be started by clicking on 'Start New Game' button as displayed in the attached image. The size of the game to be started can be selected by the dropdown next to the button.