Big Print Brain Games

Hard Sudoku (★★★★): 10 Large Print Puzzles

Hard puzzles use pairs. Suppose two empty squares in the same row can each hold only a 3 or an 8. Between them, they must take the 3 and the 8, one each. So no other square in that row can be a 3 or an 8, and you can cross those numbers off the rest of the row. Pairs work the same way in a column or a 3×3 box. Small pencil notes in the corners of the squares make pairs much easier to spot.

Open a PDF and print it on A4 or US Letter paper. Page 1 is the puzzle. Page 2 has the hint and the answer.

Other levels: Beginner / Easy / Medium. Step-by-step help: How to Solve Sudoku.