SudokuHard

Hard Sudoku — Puzzle 184

4
52
3261
37
68215
745
2857
173
48

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.

326981574
195674238
784352961
519836742
648297315
273415689
962143857
851769423
437528196