Sudoku @ sz.dk

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

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