SudokuHard

Hard Sudoku — Puzzle 76

694
8627
3
1
342
476
125764
652
69

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.

167598342
854362971
239471685
721635498
396184527
548927136
912853764
675249813
483716259