idnr: 7352

		1		3

			2		3
5		3

	6		3

Difficulty: Very easy (0)

idnr: 7868

	6				3
		5	6


		3	4
5				1

Difficulty: Very hard (0)

idnr: 8546


1		5			4
4
					3
5			3		6

Difficulty: Very easy (0)

idnr: 8955


1	5		3
2
					4
		6		4	2

Difficulty: Very easy (0)