Challenge a Friend

Pick a puzzle and difficulty. We'll generate a unique link — share it and see who finishes first.

Log in or create an account to start a challenge.

  • Create a challenge by selecting a puzzle type and difficulty, then clicking Create Challenge. A unique link is generated instantly — you don't need to play first.
  • Share the link with a friend. They'll need to log in to accept and play.
  • Both players attempt the same puzzle independently. Your times are recorded when you complete it.
  • The fastest time wins. Results are shown on the challenge page once both players have finished.
  • You can track all your active and completed challenges in the Your pending challenges list on this page, and on your profile.
  • Once both players have finished, use Challenge them back (or Challenge them again) to kick off a rematch.