SudokuHard

Hard Sudoku — Puzzle 216

8
674
1987
4372
369
256
12
641
543

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.

736142895
289675341
514398267
451863729
368729514
927451683
195236478
643987152
872514936