Sudoku @ sz.dk

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

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