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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)