Sudoku @ sz.dk

Max. level of difficulty


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

Estimated difficulty: 7.3 (<8: low, >45: high)