Sudoku @ sz.dk

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

Estimated difficulty: 7.6 (<8: low, >45: high)