Pell Puzzles
Solve a Pell grid, a logic puzzle type from achromath, with earlier puzzles kept in an archive and a leaderboard for comparing solves.
- New puzzle
- DailyReset time not published
- Category
- Math & Logic
- Price
- FreeNo account needed
- Plays on
- Web browserIn the browser, nothing to install
- Site
- pell.achromath.comachromath
- Link checked
- Nov 5, 2026
What Pell Puzzles is
Pell Puzzles, a logic grid from achromath, asks you to cover a 6x6 board with exactly eight paths, one of each length from 1 to 8. Since those lengths add up to 36, every square belongs to some path, and the work lies in fitting all eight together so each length appears once.
How a round works
Choose Daily Puzzle from the menu and the board opens with a timer already counting, a Hide Timer switch for anyone who prefers not to watch it, and a Clear button that wipes your work. A row of the numbers 1 to 8 sits under the grid, matching the eight path lengths you need. No sign-in is needed to solve; Log In, Stats and a Leaderboard sit on the home menu for keeping score. The Puzzle Archive page is laid out as a table that sets your own time beside the fastest and median solves, a time for Pellbot, the number of solves and the solve rate.
Good if you like…
- Shikaku: Shikaku also carves a square grid into pieces under a size rule: a 10x10 board is cut into rectangles, each holding one number that gives its area, with a worldwide leaderboard for speed.
- Loopy River: Loopy River is a path puzzle too, but instead of eight separate paths you deduce one closed loop through the grid that satisfies all of its rules.
- One Up Puzzle: One Up Puzzle stays with small-grid deduction on a 7x7 board, filling it with numbers rather than paths, and has a brief learn section that explains the rules.
- Tile Knight: Tile Knight is another rule-driven grid with a tutorial up front, mixing Sudoku and nonogram logic with chess moves and Star Battle ideas instead of building paths.
Who makes it
Pell Puzzles is made by achromath.
What we checked
- Loads: yes, over HTTPS (opened Nov 5, 2026).
- On a phone: the page sets a mobile viewport and fits a phone screen without sideways scrolling.
- Embedding: the game’s site allows being shown inside other sites.
- Account: none needed for the daily puzzle.