Pell Puzzles

Pell Puzzles is a 6x6 path-filling puzzle played in a browser. You must create exactly eight paths of unique lengths (1 to 8) that together fill the grid. For lengths 2 to 8 you connect exactly one X to one O; length 1 is made by clicking an X. The interface provides drawing, deleting and merging controls.

1. Open a 6x6 puzzle and fill the grid by creating paths.
2. Create a path by drawing (drag) from any empty cell or from an endpoint.
3. For lengths 2 to 8, connect exactly one X to one O to form a path of the required length.
4. For length 1, click an X to mark it as a single-cell path.
5. Use Delete by clicking a path segment to break it, or Merge by dragging one endpoint into another to join paths.
6. Avoid disallowed patterns: do not create a 2x2 solid block of path cells (No Pools) and paths cannot touch themselves (diagonal touching is allowed).

Pell Puzzles challenges you to fill a 6x6 grid using exactly eight uniquely sized paths, combining spatial planning and length constraints. The site tracks times and moves, and provides leaderboards and per-puzzle statistics so you can measure and compare performance.

When you complete a puzzle the interface shows a 'Solved!' confirmation with your Time and Moves and offers 'Solve Order', 'Share Result' and 'Archive' options. The site also displays per-puzzle and global statistics such as Best Time, Average Time, Time Distribution, and a Global Leaderboard with rank and fast thresholds.

Core play

Solve a single 6x6 puzzle by creating exactly eight unique-length paths (lengths 1 to 8) under the game's placement rules. The interface provides drawing, deleting, merging and a timer; completion yields a solved state and stats.

• Length 1 paths are placed by clicking an X. You do not draw those.
• Do not form any 2x2 solid blocks of path cells (the game disallows 'Pools').
• Paths cannot touch themselves; diagonal adjacency is allowed but side-by-side touching is not.