If you're a fan of big Sudoku puzzles then this is the book for you Printed in large page format this book is packed with 50 more giant 16x16 Sudoku puzzles, each attractively presented in a range of symmetric patterns. Each puzzle is guaranteed human-solvable - you can complete every Sudoku in the book just by scanning rows, columns and boxes, without having to make any pencil mark notes. Visit www.SudokuXtra.com for more details.