SudokuHard

Hard Sudoku — Puzzle 275

24951
319
678
92
26
478
41
7169
98

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.

762384951
318259467
549671382
687932145
125847693
493516728
954723816
871465239
236198574