250 Puzzles : Sudoku Hard (Spiral Bound)

Grab a pen and get ready to flex your mind with these fantastic sudoku puzzles!

The 250 Puzzles series of puzzle books includes 3 different levels – easy, for beginner puzzlers, hard for the experts and those wanting an extra challenge, and all levels with an increasing level of difficulty.

Containing 250 puzzles, this Hard sudoku puzzle book is for hard-core puzzlers looking for a challenge! It provides hours of entertainment, with the extra benefit of sharpening your and mental acuity and logic skills.