Take the challenge of 16 by 16 sudoku! With this much bigger size you have 256 cells to fill in with numbers 1 through 16 which will really give you something to get your teeth into. This book contains 100 big puzzles, 50 medium difficulty and 50 hard. One puzzle per page and solutions at the end of the book. Features: 16 x 16 grid One puzzle per page Large 8.5" by 11" size Glossy paperback cover
