Sudoku @ sz.dk

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

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