Sudoku @ sz.dk

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

Estimated difficulty: 13.8 (<8: low, >45: high)