SudokuHard

Hard Sudoku — Puzzle 36

692
243
7489
953
4325
2687
3714
9

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.

683519274
249687351
175243869
812795436
357164928
964832715
426358197
538971642
791426583