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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)