Sudoku @ sz.dk

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

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