SudokuHard

Hard Sudoku — Puzzle 224

65
259
9283
83
28
51
63875
346
219

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.

716389452
238574916
459126837
681792543
347615289
592843671
164938725
923457168
875261394