| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| sudoku puzzles hard | 1.68 | 0.3 | 1343 | 92 | 19 |
| sudoku | 1.81 | 0.9 | 1903 | 65 | 6 |
| puzzles | 0.15 | 0.9 | 6430 | 32 | 7 |
| hard | 1.92 | 0.5 | 4854 | 55 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| sudoku puzzles hard | 1.53 | 0.6 | 7228 | 45 |
| sudoku puzzles hard level | 1.04 | 0.6 | 8488 | 64 |
| sudoku puzzles hard printable | 1.62 | 0.6 | 625 | 25 |
| sudoku puzzles hard pdf | 1.38 | 1 | 6628 | 67 |
| sudoku puzzles hard printable free | 1.3 | 0.8 | 2156 | 82 |
| web sudoku hard puzzles | 1.45 | 0.9 | 1461 | 82 |
| hard sudoku puzzles free online | 0.99 | 1 | 318 | 42 |
| extremely hard sudoku puzzles | 1.49 | 0.7 | 9175 | 95 |
| hard sudoku puzzles online | 0.06 | 0.7 | 4842 | 40 |
| how to solve hard sudoku puzzles | 0.58 | 0.2 | 8440 | 60 |
