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Puzzle / Varies

100-Square Challenge

Fill a 10 by 10 grid by moving like a chess knight. The browser port includes 15 recorded scenarios, undo and a start-new-game option.

Play on external site ↗

Opens on: Libre Arcade project browser port. New tab; host requirements apply.

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100-Square Challenge — Original Denny Games illustration of a numbered 10 by 10 grid and knight path

How to play

  1. Continue the knight's move from square to square and try to fill all 100 spaces without getting stuck.
  2. Each move follows the chess knight's two-and-one L shape; the game tracks how many of the 100 cells you have reached.
  3. Use the external host's game menu for detailed rules and any restart or save options.

Make your move

  • Select a legal destination on the grid with the pointer. Use Undo last move to backtrack one step.
  • Check the host's Help or Controls guide for every key and touch action.
  • Denny Games has not verified a complete external game session or device compatibility.

A small head start

  • Before taking a move, count the unused squares the knight can reach next; corners quickly limit your choices.
  • Read the host's controls and rules before starting a longer run.

Compatibility notes

This browser restoration is hosted by the Libre Arcade project on GitHub Pages. Its source repository documents the GPL-3.0 project code plus each game's upstream code and separate asset terms. Denny Games links out only; it does not host the build, game data or artwork. We have not verified a complete external game session or device compatibility.

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

Libre Arcade contributors; original TAJJAVA by Jasen Borisov · AGPL-3.0-or-later original and browser port. · License detailsSource code · External browser host: Libre Arcade project browser port

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

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