Welcome to this superb collection of 100 truly massive Samurai Sudoku, each puzzle contains a whopping 13 overlapping grids for your solving pleasure. These puzzles are not for the faint-hearted or those who don't like to spend a long time solving a puzzle!

If you like traditional sudoku but are looking for a tougher challenge, then you'll love this collection of 13-grid samurai sudoku puzzles.

Here are the rules:

Place the numbers from 1 - 9 once in every row, column and bold-lined 3x3 box that compose the 13 overlapping grids in these massive puzzles.

The puzzles are printed on high-quality white paper, ideal for solving with either pencil or - for the braver solver - pen. The grids are large enough that it is also possible to make pencilmarks in the grid.

With the large size of the puzzle grids you'll be able to solve all puzzles using standard sudoku solving techniques, nothing advanced will be required - and all puzzles have a single solution that can be reached through logic alone. Full solutions are published at the back should you wish to check your progress or an answer once you've finished a puzzle. Good luck, and we hope you enjoy this collection. Also available on Amazon we have 5 and 11 grid samurai sudoku books in addition to this collection of thirteen overlapping grid puzzles, for those who love their samurai!