Sudoku by Froggy

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

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