| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| sudoku puzzles hard pdf | 1.09 | 0.9 | 3222 | 5 | 23 |
| sudoku | 1.04 | 0.1 | 5449 | 70 | 6 |
| puzzles | 1.26 | 0.6 | 2211 | 61 | 7 |
| hard | 0.49 | 0.3 | 9541 | 79 | 4 |
| 0.75 | 0.9 | 1335 | 89 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| sudoku puzzles hard pdf | 1.26 | 0.6 | 1570 | 44 |
| sudoku puzzles hard | 0.29 | 1 | 9748 | 81 |
| sudoku puzzles hard printable | 1.46 | 0.9 | 5436 | 73 |
| sudoku puzzles hard printable free | 1.26 | 1 | 3185 | 36 |
| sudoku puzzles hard level | 1.83 | 0.5 | 3073 | 82 |
| free printable hard sudoku puzzles pdf | 1.01 | 0.7 | 1311 | 29 |
| very hard sudoku puzzles 9x9 pdf | 0.09 | 0.1 | 7534 | 6 |
| hard sudoku puzzles printable pdf | 0.14 | 0.8 | 2259 | 39 |
| web sudoku hard puzzles | 0.36 | 1 | 9767 | 45 |
| hard sudoku puzzles free online | 0.94 | 0.5 | 2742 | 26 |
| extremely hard sudoku puzzles | 1.66 | 1 | 1326 | 68 |
| hard sudoku puzzles online | 0.89 | 0.4 | 36 | 65 |
| how to solve hard sudoku puzzles | 0.86 | 0.6 | 4605 | 22 |
