SudokuHard

Hard Sudoku — Puzzle 133

2139
7546
52
369
7946
197
834
12
4

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.

482617395
317589462
965342187
258731649
794856231
631294758
826973514
543128976
179465823