Sudoku @ sz.dk

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

Estimated difficulty: 10.7 (<8: low, >45: high)