75 Overlapping Sudoku Puzzles - 13 grids in each one! GIFT IDEA - This is a great gift for anyone who enjoys solving puzzles - including YOU!
When you overlap 5 sudoku grids you get Samurai Sudoku.
When you overlap 4 Samurai puzzles, you get SUPER Samurai! That's 13 overlapping sudoku grids in one puzzle. But wait... that's not all. The final 10 puzzles are a variety of this variant:...
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