Large Print Sudoku Book

The numbers in these grids are extra large, and the 3 x 3 boxes have clear, heavy lines, so the puzzles are easy on the eyes. In the one-per-page book, each grid is about 7 inches wide. The two-per-page version has 4-inch grids and uses fewer sheets of paper.

The puzzles run from easy to hard in groups of 40. A solver checked every one: each has exactly one solution and can be solved by logic alone. The levels follow the steps a person needs. In an easy puzzle only one number fits the next square, medium means scanning rows and boxes, and hard calls for pencil marks. One to three dots under each puzzle show its level.

There is a how-to page with a worked example for anyone new to sudoku, a tracker to tick off all 120 puzzles, and a line for the date and time under every grid. The solutions are at the back, six to a page.

• Cover and how to play, with a worked example
• Puzzle tracker for all 120 puzzles
• 40 easy, 40 medium and 40 hard puzzles, each with a line for the date and time
• 20 solution pages
• The same book in two layouts: one puzzle per page (143 pages) or two per page (83 pages)

Choose Actual size (100%) when printing. Plain printer paper is fine. A pencil is handy for jotting small candidate numbers and erasing them later. If you're giving the book to someone, keep the solution pages separate so nobody peeks.