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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)