SudokuHard

Hard Sudoku — Puzzle 146

527
1483
1
5789
835
963
1
896
3285

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.

386591247
124687593
795432816
573128964
862349751
941756328
217865439
458913672
639274185