Printable and tablet-friendly PDF
Includes 200 extreme Sudoku puzzles with answers in back. The pack includes a compact PDF and a large print edition.
These puzzles are intended for advanced solvers and are rated SER 8.5 to 9.0.
Extreme Sudoku Puzzle Book PDF
200 extreme Sudoku puzzles in printable PDF format. Built for experienced solvers who want SER 8.5 to 9.0 difficulty.