SudokuHard

Hard Sudoku — Puzzle 88

496
19
2
72165
87
1534
57
168
4293

How to play

Fill every row, every column and every 3 by 3 box with the numbers 1 to 9, using each number once.

This puzzle has 26 given numbers and exactly one solution, so it can always be finished by reasoning alone.

425968173
783421659
196735482
372814965
854396721
961572834
539187246
217643598
648259317