SudokuHard

Hard Sudoku — Puzzle 22

174
51
479
246138
862
9
369
7458
6

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.

918632754
672549813
435781692
247965138
856123947
391478265
183256479
729314586
564897321