Sudoku @ sz.dk

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

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