Sudoku @ sz.dk

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

Estimated difficulty: 7.5 (<8: low, >45: high)