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

Difficulty: Easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super hard (158)

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

Difficulty: Very hard (0)