Sudoku @ sz.dk

Max. level of difficulty


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

Estimated difficulty: 31.8 (<8: low, >45: high)