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TripleMark

Three in a row to win.

TripleMark is the classic pencil-and-paper game brought online. Play a friend on the same device or take on the AI at three difficulty levels.

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Strategy★ 4.4Free to playHTML5

How to Play

  1. Choose your mode: single-player versus AI or two-player local.
  2. Players take turns clicking an empty square to place their mark.
  3. Form a horizontal, vertical or diagonal line of three to win.
  4. If the grid fills with no winner, the game is a draw.

Features

  • Single-player vs AI with three difficulty levels
  • Two-player local mode
  • Crisp animations and victory highlighting
  • Score tracker across rounds
  • Instant restart button

Tips and Strategy

  • Take the center on your first move whenever possible.
  • Corners beat edges — prefer corners for your second move.
  • Create a fork: two ways to win on the same move.
  • Always check whether your opponent threatens a fork before pursuing your own.

About TripleMark

TripleMark is a quick, sharp game of pattern recognition. Place your mark, block your opponent, and build a fork that wins on the next move no matter what they do.

Perfect play between two experts always ends in a draw, which is part of the charm — every loss to the AI is a real mistake you can learn from.

Privacy first

TripleMark respects your privacy. We do not require a sign-up to play, we minimize the data we collect, and we are transparent about cookies. See our Privacy Policy for the full details.