Sudoku @ sz.dk

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

Estimated difficulty: 22.8 (<8: low, >45: high)