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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)