SudokuHard

Hard Sudoku — Puzzle 211

6129
1437
9541
795
823
5126
4
461

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.

763812549
148695372
295374861
537248916
614739258
982561437
351927684
426183795
879456123