Print: $7.62
50 9x9 Sudoku puzzles - Difficulty levels 1 & 2
50 9x9 Sudokus - Levels 2 and 3 of difficulty.
Print: $8.40
30 16x16 Sudokus - least difficult level
30 16x16 Sudokus - 3rd most difficult level
30 16x16 Sudokus - 2nd most difficult level
30 16x16 Sudokus - most difficult level
Print: $9.41
20 25x25 Sudokus - 4th most difficult level
20 25x25 Sudokus - 3rd most difficult level
20 25x25 Sudokus - 2nd most difficult level
20 25x25 Sudokus - most difficult level you can find
20 25x25 Sudokus - Most difficult sudokus anywhere.
50 9x9 Sudokus - Levels 3 and 4 of difficulty