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Simon Tatham's Puzzles

Explore dozens of compact logic games, from Bridges and Fifteen to Net and Loopy. Each puzzle has its own rules and browser controls; the official collection is MIT-licensed and opens outside Denny Games.

Play on external site ↗

Opens on: Simon Tatham's official puzzle collection. New tab; host requirements apply.

MouseKeyboard
Simon Tatham's Puzzles — Original illustration of a logic grid with a path of colored puzzle tiles

How to play

  1. Choose a puzzle from the collection. Its Help menu explains the specific goal and rules.
  2. Start a new board or enter a game ID or random seed to revisit a puzzle.
  3. The browser pages do not save puzzle files. Copy the ID or seed before leaving if you want to return to the same board.

Make your move

  • Mouse: click the board and the controls shown by the selected puzzle.
  • Keyboard: use the selected puzzle's Help menu for its key bindings.
  • The linked pages are hosted by the collection author. Denny Games has not verified every puzzle or device.

A small head start

  • Try a small puzzle such as Fifteen or Bridges to learn the interface.
  • Open Help before starting; the collection contains many different rule sets.
  • Copy the puzzle ID or random seed when you want to share a specific board.

Compatibility notes

This is the collection author's site. Choose one of its browser puzzles to continue. The collection is distributed under the MIT License; its web version has no save-file feature, so keep a puzzle ID or seed if you want to reproduce a board. Denny Games has not verified each puzzle session or device.

Denny Games has not verified this external build's gameplay, browser compatibility, controls or save behavior. Check the host's current requirements.

Play style: Point and move. This game runs on an independent host or browser build. Denny Games does not manage its account, session or saves; see the notes above for how this build handles them.

Compatibility

Credits & source

Simon Tatham and puzzle contributors · MIT · the browser games are part of the collection. · License detailsSource code · External browser host: Simon Tatham's official puzzle collection

Updated: 2026-10-15. Free to play. Pages may contain disclosed affiliate links; Google ads are inactive.

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