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

Difficulty: Super easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)