You can play Sudoku online on this page for free. There are seven levels (1 to 7), with 1 being the easiest one, and 7 being the hardest one. You can reset the puzzle and get a new one whenever you want.
Sudoku Books on my Amazon homepage:
- Extremely Hard Sudoku Puzzle Books (Young & Adults)
- Mixed Sudoku Puzzle Books (Extremely Hard, Hard, Moderate & Easy)
- Moderate Level Sudoku Puzzle Books (Young & Adults)
- Sudoku Puzzle Books for Kids (Easy, Moderate, Hard)
- Sudoku Puzzle Books for Young & Adults (Easy, Moderate, Hard)
- Pocket Sudoku Puzzle Books (Level: Hard, 4 x 6 Inches in Size)
- Pocket Sudoku Puzzle Books (Level: Moderate, 4 x 6 Inches in Size)
- Mixed Pocket Sudoku Puzzle Books (Difficult, Moderate, Easy, 4 x 6 Inches in Size)
Level Total Won Lost 1 143045 0 1 2 36582 0 0 3 1030 0 0 4 18142 0 0 5 37 0 0 6 1132 0 0 7 32 0 1