Sudoku @ sz.dk

Max. level of difficulty


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

Estimated difficulty: 19.8 (<8: low, >45: high)