16x16 Diagonal Sudoku X: Hard Mega-Sudoku X Puzzles (Paperback) (ISBN-13: 9798646509674)

Challenge your brain, have a fun time, and fight the boredom with the mega Diagonal Sudoku challenging puzzles.
This Sudoku activity book includes 120 puzzles of 16x16 Sudoku X from Hard to Extreme with instructions, examples, and solutions. Plus Bonus Puzzles of a different type of Sudoku at the end of the book.

• 16 x16 Diagonal Sudoku X has 16x16 squares.
  
• Each row, column, Diagonal cells, and block (surrounded by bold lines) should contain all numbers from 1 to 16
  
• No number is repeated in any row or column or block or in a diagonal line.

Why will you love this book?

• Scientific research has shown that solving logic puzzles as Sudoku keeps your mind sharp, improves memory, and enhances problem-solving skills.
• 16x16 Diagonal Sudoku X book has four challenging levels, from Hard to extremely hard.
• One Puzzle per page in a large font makes it easy to read and will not strain the eyes.
• Wide margins for your calculations and work to solve the puzzles.
• Plus the solutions to all the puzzles included at the end of the book.
• BONUS Puzzles: 6 Diagonal Samurai Sudoku Puzzles.

Features:

• Size: 8.5x11 inches (large size) with softcover and paperback binding.
• Pages: 155 pages with 120+ different puzzles and the solutions of all the puzzles at the end.

Imagine the fun and challenging hours you'll spend solving these challenging puzzles