SudokuHard

Hard Sudoku — Puzzle 91

382
417
671
42857
69
37
369
813
14

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.

591736842
483521679
267948531
642189357
715362984
839457216
356274198
924813765
178695423