Samurai Sudoku
Samurai Sudoku, also called Gattai-5, connects five grids through shared corner boxes.
Samurai Sudoku
00:00
Keyboard: 1–9 enter · arrows move · N notes · Backspace clear · Ctrl+Z undo
How to Play Samurai Sudoku
- Samurai Sudoku uses a central 9×9 grid and four outer 9×9 grids.
- Each outer grid shares a corner 3×3 box with the central grid.
- Rows, columns and boxes in every grid contain 1 to 9 once; shared cells must satisfy both grids.
Tips for Solving
- Start with the grid that has the most useful clues.
- Use a solved shared box to unlock the neighbouring grid.
- Keep notes consistent across both grids at each overlap.
Frequently Asked Questions
Is Samurai Sudoku free to play?
Yes. Every Samurai Sudoku puzzle on Sudoku Shrine is free in your browser, with no account or download.
Does every Samurai Sudoku puzzle have one solution?
Yes. Each puzzle is checked by a solver so it has exactly one solution and can be solved by logic alone.
Which difficulty should I start with?
Start with Easy to learn the layout, then move to Medium and Hard once scanning and notes feel natural.
Is my progress saved?
Yes. Your entries and notes are saved in this browser, so you can close the page and continue later.