Sudoku @ sz.dk

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

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