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

Difficulty: Super easy (0)

		1		8
			6		2
6					8		4
3
							8
1		3					6
		2		7
			7		1

Difficulty: Medium (0)

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

Difficulty: Very easy (0)

	4				7
		8	5
				4			6
4		6
					6		4
8			2
				3	8
		5				7

Difficulty: Easy (0)