Sudoku @ sz.dk

Max. level of difficulty


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

Estimated difficulty: 10.7 (<8: low, >45: high)