Printable Sudoku Puzzles 9x9 Vol - IV

A collection of 500 computer generated puzzles of the world's most popular number game. All puzzles in this book are generated using our own invented algorithm that can generate puzzles of any dimension, even 81x81. The number of possible boards is only theoretically estimated so far. Our algorithm can generate all these boards practically. These puzzles are available in 5 volumes each containing 500 puzzles of 9x9. The puzzles are specially printed in easy to carry pocket book size that you can take on your travel.