Sudoku Puzzle Book Variations: Nine Different Challenging Sudoku Styles For Advanced Players

Tired of the same old sudoku puzzles? Give yourself a real challenge with this book containing nine unique sudoku variations.There are a total of 90 puzzles, 10 of each variation and 2 difficulties of each. Makes a great gift for sudoku fanatics!Features:Large 8.5" by 11" book with plenty of space for notesOne puzzle per pageNine variations Sudoku X, hyper, twins, triathlon A & B, marathon, samurai, 12 x 12 and 16 x 16Glossy wipe clean coverSolutions at end