Sudoku @ sz.dk

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

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