Solve this hard Sudoku puzzle with 28 clues. Estimated solving time: 20 minutes. View the grid and challenge yourself.
This hard-level Sudoku puzzle contains 28 given numbers (clues). The estimated solving time is approximately 20 minutes for a solver comfortable with hard puzzles. Every valid Sudoku puzzle has exactly one unique solution.
You will need intermediate techniques like Naked Triples, Hidden Pairs, and Box-Line Reduction. Consider learning X-Wing for the toughest spots in hard puzzles.
Hard puzzles typically have 26-29 clues. Fewer clues generally means more complex logic is needed to reach the solution. Hard puzzles are designed for experienced solvers seeking a challenge.
Ready to put your skills to the test?
Try Final Sudoku - an ad-free Sudoku experience with smart tools