Sudoku 25x25 Volume 12

Back again for fans of these giant puzzles, this twelfth book of 25x25 Sudoku puzzles brings you 50 more enormous challenges. Printed in large page format on top-quality paper, each puzzle is attractively presented in a range of symmetric patterns. Every sudoku in the book is guaranteed to be human-solvable - you can complete all of the puzzles just by scanning rows, columns and boxes, without having to make any pencil mark notes. Visit www.SudokuXtra.com for more books in the series.