100 Challenging Sudoku Puzzles for a Sharp Mind by Alan Mafee. Look no further than this 100 puzzle book, perfect for adults of all ages, and kids of advanced levels. – 8.5×11 size. Title 100 Challenging Sudoku Puzzles for a Sharp Mind.
100 Challenging Sudoku Puzzles for a Sharp Mind by Alan Mafee. Look no further than this 100 puzzle book, perfect for adults of all ages, and kids of advanced levels. – 8.5×11 size. Title 100 Challenging Sudoku Puzzles for a Sharp Mind.