Sudoku @ sz.dk

Max. level of difficulty


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

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