Sudoku @ sz.dk

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

Estimated difficulty: 22.8 (<8: low, >45: high)