Super Samurai Sudoku: 65 overlapping puzzles, 13 grids in 1 (Super Quad Samurai Sudoku Books)

This is volume 4 of the Super Samurai Sudoku series!Some people consider Sudoku Samurai puzzles too big; some other people prefer even bigger Sudoku variant puzzles.If you belong to the second category, this book is for you!It's full of overlapping 13 grid Sudoku puzzles (Gattai-13) laid out in a quadruple Samurai Sudoku format. Essentially, there are 13 Sudoku sub-puzzles which overlap the same way as in Samurai Sudoku. So it is like having 4 Samurai Sudokus on top of each other!This books comes from Djape, the author who has been supplying Sudoku Samurai puzzles for The Washington Post since 2005.All puzzles in this volume are new, previously unpublished.There are also some gifts at the end!Are you up for this challenge?