SudokuHard

Hard Sudoku — Puzzle 116

6834
8
381
349
87
1827
53
468
9456

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.

685913724
714652398
329748165
273469851
956187243
148325679
591876432
462531987
837294516