SudokuHard

Hard Sudoku — Puzzle 227

3
145
61
72953
16
3574
286
638
582

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.

758936241
194278536
362145789
471682953
935714862
826359174
287493615
613527498
549861327