16 x 16 SUDOKU PUZZLES TO GO contains 100 large size Sudoku puzzles for your solving enjoyment. Using the numbers one through nine and the letters A through F, these puzzles are definitely a... More > challenge. There are four difficulty levels and solutions are included. The book is spiraled bound and 6” x 9” in size, perfect for solving anywhere.< Less
16 x 16 SUDOKU PUZZLES TO GO contains 100 large size Sudoku puzzles for your solving enjoyment. Using the numbers one through nine and the letters A through F, these puzzles are definitely a... More > challenge. There are four difficulty levels and solutions are included. The book is spiraled bound and 6” x 9” in size, perfect for solving anywhere.< Less
A collection of 300 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... More > dimension, even 81x81. The number of possible boards is only theoretically estimated so far. Our algorithm can generate all these boards practically.< Less
A collection of 300 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... More > dimension, even 81x81. The number of possible boards is only theoretically estimated so far. Our algorithm can generate all these boards practically.< Less
A collection of 300 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... More > dimension, even 81x81. The number of possible boards is only theoretically estimated so far. Our algorithm can generate all these boards practically.< Less
A collection of 300 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... More > dimension, even 81x81. The number of possible boards is only theoretically estimated so far. Our algorithm can generate all these boards practically.< Less
