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Futoshiki Generator
Generate printable Futoshiki puzzles — Latin-square grids with greater-than / less-than inequality clues. Every puzzle has a unique solution, and each PDF includes answer keys.
About Futoshiki
Futoshiki ('inequality') is a Latin-square puzzle: fill the grid with unique digits per row and column while obeying less-than and greater-than signs between adjacent cells.
Tips
- Process inequality signs first — they eliminate candidates immediately.
- Rows or columns with many signs are usually the easiest to complete.
- Combine sign constraints with row/column elimination to force placements.
FAQ
- What does Futoshiki mean?
- It's Japanese for 'inequality' — the puzzle's defining less-than/greater-than signs.
Make the worksheet useful
Choose, check, then download
Logic solvers practicing ordering constraints through greater-than and less-than clues.
Suggested workflow
- 1Choose difficulty and number of puzzles.
- 2Inspect symbol spacing in the preview.
- 3Download the set with answer keys.
Why this format
Clear inequality placement is essential on e-ink; the preview makes that legibility check possible.
Sample PDF
Generate one puzzle for a representative sample PDF.