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

Difficulty: Medium (0)

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

Difficulty: Very hard (0)

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

Difficulty: Very easy (0)

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

Difficulty: Easy (0)