SudokuHard

Hard Sudoku — Puzzle 144

91
893
365
78
6
249
457
9875
72614

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.

529367418
478951326
316428579
697183245
184592763
235746981
841235697
963874152
752619834