SudokuMedium

Medium Sudoku — Puzzle 240

6387
768
931
247
859
48175
45
8419
82635

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.

623418597
417965328
958372641
135247986
876593214
249681753
364159872
582734169
791826435