Sudoku 15x15 - Extreme is a collection of 276 puzzles:
• 216 extreme Sudoku 15x15 puzzles
• 60 extra logic puzzles
I guarantee that every logic puzzle in this Sudoku puzzle book has been carefully checked to ensure that each puzzle has only 1 solution.
None of the puzzles in this book will appear in any of the other PuzzleBooks.net books.
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