Sudoku @ sz.dk

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

Estimated difficulty: 7.5 (<8: low, >45: high)