Sudoku @ sz.dk

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

Estimated difficulty: 4.4 (<8: low, >45: high)