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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)