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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Super easy (0)