Sharpen up your brain with this jumbo book of 1,000 mind twisting sudoku puzzles, 500 hard and 500 extra hard. Featuring 4 puzzles per page with solutions at th

Sharpen up your brain with this jumbo book of 1,000 extra hard mind twisting sudoku puzzles. Featuring 4 puzzles per page with solutions at the end. Look out fo

Sharpen up your brain with this huge book containing 1,000 mind twisting sudoku puzzles. Don't waste puzzles with this single difficulty book. Featuring 4 puzzl

Sharpen up your brain with this jumbo book of 1,000 hard, mind twisting sudoku puzzles. Featuring 4 puzzles per page with solutions at the end. Look out for oth

Sharpen up your brain with this jumbo book of 1,000 mind twisting sudoku puzzles with two levels of difficulty. Featuring 4 puzzles per page and solutions at th