Sudoku @ sz.dk

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

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