Sudoku @ sz.dk

Max. level of difficulty


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

Estimated difficulty: 13.7 (<8: low, >45: high)