Challenge your mind with this hard 12x12 Sudoku puzzle book, designed for confident Sudoku players who enjoy a bigger grid and a tougher puzzle experience. This book includes 60 hard 12x12 Sudoku puzzles, with 2 puzzles per page and 60 solutions included at the back for checking answers. Perfect for advanced solvers, puzzle fans, brain training, quiet evenings, travel, holidays, waiting rooms and anyone who enjoys a serious logic challenge. Book details: 6 x 9 inch paperback 60 pages 60 hard 12x12 Sudoku puzzles 2 puzzles per page 60 solutions included 2 solutions per page. Large 12x12 grid format. Black and white interior. Great for advanced Sudoku players. A clean and challenging puzzle book for anyone ready to move beyond standard Sudoku.