2
2
	6	1
			1	3
					6
			4

Difficulty: Very easy (0)

4				2
		6			1
					3
6
5			6
	1				2

Difficulty: Super easy (0)

	1
	5
					6
4
				2
				1

Difficulty: Very easy (0)

	4
				6
			5
		2
	6
				3

Difficulty: Very easy (0)