Tic Tac Toe

Objective

Be the first to get three of your marks in a row — horizontally, vertically or diagonally — on the 3 × 3 grid. X always goes first. If the board fills with no line, the game is a draw.

How a turn works

• Tap an empty square to place your mark.
• Players alternate: X then O.
• The first player to complete a line of three wins.

Daily Challenge

Everyone plays the computer on Medium. You are X and go first. The computer’s replies are seeded from today’s UK date, so the same sequence of your moves always gets the same replies. Win by beating the computer. A new match arrives at midnight UK. Finishing — win, draw or loss — counts for your streak; only the first finish of the day is recorded for the league.

Computer strengths

• Easy: often misses wins and blocks.
• Medium: takes wins and blocks, with a little variety.
• Hard: perfect play — it never loses. The best you can do is a draw.

Keyboard

• 1–9 — place in that square (1 is top-left, 9 is bottom-right).