Sudoku by Froggy

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

Estimated difficulty: 28.8 (<8: low, >45: high)