Sudoku @ sz.dk

Max. level of difficulty


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

Estimated difficulty: 13.7 (<8: low, >45: high)