idnr: 6279

5		1		4

1
					3

	6		5		2

Difficulty: Very easy (0)

idnr: 4221

	6				1
1
					5
3
					3
5				2

Difficulty: Easy (0)

idnr: 5812

					2

5		2	1
		6	5		4

3

Difficulty: Very easy (0)

idnr: 4035

1		2

			5	4
	5	6

			1		5

Difficulty: Super easy (0)