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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Very easy (0)