Sudoku X - hard, vol. 1

Discover the ultimate challenge with Sudoku X - Hard, Vol. 1! This magazine features 504 engaging puzzles crafted for Sudoku experts, with an advanced level of difficulty. Each page presents two grids to test your solving skills. Perfect for Sudoku enthusiasts seeking a challenging experience.
Sudoku X - hard, vol. 1
 
Total grids: 504  
Sudoku for connoisseurs.

Prices on website are similar from Amazon .com. See options and countries on the site (click on Where can I buy? - for magazine purchases)