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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)