Sudoku @ sz.dk

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

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