Sudoku @ sz.dk

Max. level of difficulty


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

Estimated difficulty: 16.8 (<8: low, >45: high)