4x4 Hard Sudoku Puzzles
Puzzles help keep your mind sharp while enjoying a challenging logic game. The puzzle can be played online or printed out and solved at your leisure.
To download and print these puzzle, select the link of the level of difficulty, like Easy, Medium or Difficult, then among the selection of a variety of puzzles, click on the link below each puzzle. Save it on your computer device, solve and enjoy!
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4x4 Sudoku - Hard - 10
4x4 Sudoku - Hard - 18
4x4 Sudoku - Hard - 12
4x4 Sudoku - Hard - 11
4x4 Diagonal Sudoku - Hard - 1
4x4 Sudoku - Hard - 5
4x4 Sudoku - Hard - 9
4x4 Sudoku - Hard - 6
