Sudoku @ sz.dk

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

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