Sudoku @ sz.dk

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

Estimated difficulty: 10.6 (<8: low, >45: high)