Sudoku 3: Hard to Extreme: 200 Puzzles: Hard to Extreme
by Sudoku 3: Hard to Extreme: 200 Puzzles: Hard to Extreme
$11.63
Description
Perfect for sharpening concentration and reasoning skills, here are 200 all-new Sudoku puzzles that build in difficulty level from hard to very challenging. A musthave for every on-the-go Sudoku sleuth!