Jigsaw Samurai Sudoku.
Book format: An electronic version of a printed book that can be read on a computer or handheld device designed specifically for this purpose.
By: Lea RestEach puzzle consists of 5 overlapping Jigsaw Sudoku grids. Place the digits 1 to 9 into every row and column of each of the regular 9x9 Sudoku grids, as well as each of the bold-lined jigsaw pieces.
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