Sudoku @ sz.dk

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

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