2					6
							8
	1
			7					2
		5				7
7					9
							7
	9
			4					3

Difficulty: Very easy (0)

8	7
					8
				7				8
			5	9
4	5						1	3
				8	4
1				6
			4
							8	5

Difficulty: Very easy (0)

		9				6
	7
						2		3
2				9
				8				5
5		7
							8
		6				1

Difficulty: Very easy (0)

	9			4
2				7
		4						8
3	1		7	8
				3	2		1	4
5						7
				2				5
				5			8

Difficulty: Very easy (0)