Sudoku @ sz.dk

Max. level of difficulty


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

Estimated difficulty: 7.5 (<8: low, >45: high)