Sudoku @ sz.dk

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

Estimated difficulty: 10.7 (<8: low, >45: high)