Sudoku @ sz.dk

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

Estimated difficulty: 10.6 (<8: low, >45: high)