Sudoku @ sz.dk

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

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