Sudoku @ sz.dk

Max. level of difficulty


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

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