Sudoku @ sz.dk

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

Estimated difficulty: 13.7 (<8: low, >45: high)