SudokuHard

Hard Sudoku — Puzzle 168

4
19325
759
875
374
5483
37
725
12

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.

567891432
819342765
423756819
281437596
936518274
754269183
392174658
678925341
145683927