Unique Puzzle book for seniors who are bored from the vanilla flavored Sudoku and ready for some variations. This Sudoku activity book includes 100+ Diagonal Samurai Sudoku puzzles from very easy to hard with examples, and solutions. Plus Bonus Puzzles of a different type of Sudoku. What is Diagonal Samurai Sudoku X? Diagonal Samurai Sudoku X has five overlapping 9x9 grid. Each row, column and 3x3 block (surrounded by bold lines) contains all numbers from 1 to 9 no number is repeated in any row or column or block or diagonal line. To easily solve Samurai Sudoku, consider solving the puzzle as a whole, and use the symmetry rule for the opposite areas. Use clues from one 9x9 grid to solve the other grids. Why will you love this book? Challenge your brain, have a fun time, and fight the boredom with 100+ Diagonal Samurai Sudoku challenging puzzles. Scientific research has shown that solving logic puzzles as Sudoku keeps your mind sharp, improves memory, and enhances problem-solving skills. 100+ Diagonal Samurai Sudoku X book has 4 challenging levels, from very easy to hard. The large font makes it easy to read and will not strain the eyes. The solutions to all the puzzles included at the end. BONUS Puzzles at the end of the Book: 6 large font Jigsaw Samurai Sudoku. Features: Size: 8 x 11.5 inch (large size) with softcover and paperback binding. Pages: 136 pages with 100+ large print puzzles (1 per page) and the solutions of all the puzzles at the end. Imagine the fun and challenging hours you'll spend solving these huge puzzles! Scroll up and order your copy.