Sudoku #878

Complexity: Easy

 Fun Fact About Sudoku
According to the Oxford Dictionary, the origin of the word 'puzzle' is a bit of a puzzle. But the verb 'to puzzle' seems older than the noun 'puzzle'.

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

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