Tic Tac Toe is a classic two-player game played on a 3x3 grid. The players take turns marking the grid spaces with their chosen symbol (usually X or O), with the objective of placing three of their symbols in a row, either horizontally, vertically, or diagonally. The first player to achieve this goal wins the game. If all the grid spaces are filled without either player achieving a winning combination, the game is a draw. It is a simple and popular game often used as a teaching tool to introduce young children to the concepts of strategy, logic, and critical thinking.