Sudoku @ sz.dk

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

Estimated difficulty: 4.3 (<8: low, >45: high)