5-grid Samurai Sudoku Samurai Sudoku takes the beautifully-constrained logic of a Sudoku puzzle and makes it larger without making it ridiculously complex. Instead of increasing the number of possible digits in a puzzle, in a Samurai Sudoku an arrangement of multiple grids is overlaid - and then all must be solved simultaneously in order to complete the puzzle.
The aim is simple: place the digits 1 to 9 into every row, column and bold-lined 3x3 box of each of the underlying regular 9x9 Sudoku grids.
An infinite variety of grid arrangements is possible, and the puzzles need not be 9x9 - take a look at the bar on the right-hand side, and see the Samurai Variety page for some other options.
There is only ever one solution, and guessing is never required.
I can supply Samurai Sudoku puzzles (sometimes also known as Gattai or Multi-Grid Sudoku) for any underlying size of grid and with a wide range of variations, such as Sudoku-X regions or Jigsaw pieces - click to view the alternative pages below too.
All of my puzzles are either entirely hand-made or have significant manual input into the process.
Choose from one of the following options:
Play a wide range of free puzzles online
Obtain Samurai Sudoku puzzles for your publication
Some more puzzle types from Dr Gareth Moore - click on a puzzle to view further varieties:
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