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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)