Sudoku @ sz.dk

Max. level of difficulty


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

Estimated difficulty: 25.8 (<8: low, >45: high)