SudokuHard

Hard Sudoku — Puzzle 10

52
9458
5193
73
6
14
231
7489
8249

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.

834529671
917436528
625718934
462185793
159374862
378962145
293651487
741893256
586247319