Sudoku @ sz.dk

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

Estimated difficulty: 7.6 (<8: low, >45: high)