Sudoku #1225

Complexity: Medium

 Fun Fact About Sudoku
When Sudoku became a world hit in 2005, it is estimated that it is the biggest phenomenon since the Rubik's Cube in the 1980s.

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

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