SudokuHard

Hard Sudoku — Puzzle 246

91
4269
85
27183
42
126
39
917
834

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.

951486237
426317598
738295614
562749183
847631925
193528746
374962851
689154372
215873469