
Tic Tac Toe, also known as Noughts and Crosses, has ancient roots—similar grid games were played in ancient Egypt and Rome. Its simplicity made it a favorite pastime for schoolchildren and adults alike. It’s also used in AI research and logic teaching due to its strategic depth despite the small grid.
Two players take turns placing X or O on a 3×3 grid. The first to align three of their symbols in a row, column, or diagonal wins. If the grid is full and no one has won, the game ends in a draw.