Sudoku @ sz.dk

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

Estimated difficulty: 28.8 (<8: low, >45: high)