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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)