Sudoku Game: ME-51 Medium

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