Sudoku @ sz.dk

Max. level of difficulty


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

Estimated difficulty: 10.6 (<8: low, >45: high)