Sudoku @ sz.dk

Max. level of difficulty


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

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