This Sudoku (based on 9x9 puzzle grid) book provides 500 Blank forms, with 2 Sudoku 9x9 grids per page. The puzzle grids are sized optimally to put in your candidates (pencil) with sufficient room to put your entry in each cell to solve the puzzles you create. The grids are sized 4.5" x 4.5". There is a note section next to each puzzle grid to allow taking notes to help with solving your puzzles. The front cover of this book shows what the blank grids...