SudokuHard

Hard Sudoku — Puzzle 58

653
81
5278
81652
47
45
472
238
62

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.

168453729
734982561
529716483
817694352
356821947
492375618
985147236
273568194
641239875