SudokuHard

Hard Sudoku — Puzzle 183

75
31647
51
489
826
27
58193
921
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.

847532196
931864572
526719384
412657839
375948261
689321457
258176943
794283615
163495728