Noughts & Crosses

Noughts & Crosses is a classic puzzle board game that adds a mathematical twist to the traditional tic-tac-toe. Players take turns placing their marks on a 3x3 grid, aiming to get three in a row. However, after each round, players must solve a math question to unlock the next round. This design tests both strategic thinking and mental arithmetic. The game runs directly in the browser on desktop and mobile devices, with no downloads required. Its simple interface and intuitive controls make it suitable for all ages. Whether for casual fun or math practice, Noughts & Crosses offers an engaging challenge.

Players alternate placing their mark (X or O) on a 3x3 grid, trying to form a line of three horizontally, vertically, or diagonally. After each completed game, a math problem (e.g., addition, subtraction, multiplication, division) appears, and the player must answer correctly within a time limit to proceed. The game continues until the player quits or fails a math challenge. Strategic placement and quick mental math are key to winning.