Sudoku #1809

Complexity: Medium

 Fun Fact About Sudoku
Jigsaw puzzles were invented by the English mapmaker and geographer John Spilsbury in 1760.

Enter numbers into the empty cells so that each row, column and 3x3 box contains the numbers 1 to 9.

2 6 8
8 3 2 9 1
6 1 9 3 8 5 7
1 3 4 7
4 8 6 7 9 1 5
5 2 6 3
3 4 7 5 6 2 9
9 2 8 5 6
6 9 8