Noughts and Crosses, also known as Tic-Tac-Toe, is a simple two-player game played on a 3x3 grid. Players take turns marking a square with either an X or an O. The objective is to be the first to get three of their marks in a row, either horizontally, vertically, or diagonally. The game is often played on paper or as a digital version. It is popular among children and serves as an introduction to strategic thinking and planning. Due to its simplicity, Noughts and Crosses can often end in a draw if both players use optimal strategies.