Sudoku has been a beloved puzzle game for decades, offering a fun and engaging way to exercise your brain. While many enjoy playing Sudoku online, there’s something special about solving puzzles from a physical Sudoku book. Whether you’re looking for a portable option to take with you on ...
Boy Howdy's Expert Sudoku has four tricky types of Sudokus to try: • X Sudoku is the same as regular 9x9 sudoku, but both diagonals must contain 1 to 9 once only. • Hyper Sudoku is 9x9 but with an additional set of four 3x3 blocks that must contain 1 to 9 once only. ...