Sudoku @ sz.dk

Max. level of difficulty


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

Estimated difficulty: 13.7 (<8: low, >45: high)