Available to order, ships in 8-11 business daysWith 100 mind-bending puzzles ranging from easy to difficult, Extreme Sudoku is an intensely challenging puzzle book to test your mind, stretch concentration levels and stimulate problem-solving skills.
Buy Extreme Sudoku: 100 Mind-Bending 16x16 Puzzles for Adults by David Fleming from Australia's Online Independent Bookstore, BooksDirect.
