Sudoku @ sz.dk

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

Estimated difficulty: 37.9 (<8: low, >45: high)