SudokuMedium

Medium Sudoku — Puzzle 235

6423
71
147
91862
2935
249
2136
9524
539

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 32 given numbers and exactly one solution, so it can always be finished by reasoning alone.

648729513
957831264
132564978
594186732
876293145
321475896
213948657
769352481
485617329