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

Difficulty: Super easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)