Sudoku @ sz.dk

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

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