Sudoku @ sz.dk

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

Estimated difficulty: 16.8 (<8: low, >45: high)