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

Difficulty: Very hard (0)

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

Difficulty: Super hard (286)

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

Difficulty: Super hard (256)

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

Difficulty: Easy (0)