noughts and crosses

"Noughts and crosses" is a phrase used to describe a popular game played on a grid typically consisting of a 3x3 square with nine spaces. Also known as "tic-tac-toe" in some countries, it is a two-player game where each player takes turns marking either an "X" or an "O" in one of the empty spaces. The objective is to get three of their own marks in a horizontal, vertical, or diagonal row, while also trying to prevent their opponent from achieving the same.