Sudoku @ sz.dk

Max. level of difficulty


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

Estimated difficulty: 7.4 (<8: low, >45: high)