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

You are presented with a 9 x 9 grid, divided into 3 x 3 sections or "regions". Some Cells in the grid will be pre-populated with numbers from 1 to 9.

Your Task is to fill the remaining empty cells so that each row, column and region contains on instance of every number from 1 to 9.

January's Soloution

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