SudokuHard

Hard Sudoku — Puzzle 251

741859
823
9
172
973
3
7584
64173

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.

743185629
815629437
629734158
187293546
952846713
436571982
594368271
371952864
268417395