SudokuHard

Hard Sudoku — Puzzle 39

369
8576
9
64
7823
2318
53427
61
9

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.

364925871
852174369
179386425
986437512
715892634
243561798
531649287
697258143
428713956