Sudoku @ sz.dk

Max. level of difficulty


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

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