Returning for another volume thanks to continuing demand, this thirteenth book of giant Sudoku puzzles brings you 50 more enormous 25x25 Sudoku puzzles. Printed in large page format on top-quality pap
Returning for a fifth volume due to popular demand, Sudoku 16x16 Volume 5 contains 50 more attractively-designed large 16x16 Sudoku puzzles. Every puzzle can be solved just by observation - you don't
