SudokuHard

Hard Sudoku — Puzzle 217

36
851
417
5794
93617
267
965
349

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.

139724586
728563914
456891732
571932468
684175293
293486157
842319675
967258341
315647829