Sudoku @ sz.dk

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

Estimated difficulty: 16.8 (<8: low, >45: high)