Sudoku @ sz.dk

Max. level of difficulty


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

Estimated difficulty: 7.6 (<8: low, >45: high)