SudokuHard

Hard Sudoku — Puzzle 136

8
162
493
968
7419
896
1594
372
25

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.

861732594
753149628
249685371
396821745
572463189
418957263
185296437
634578912
927314856