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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)