6			8	1			5	3
		5							7
	8
	5	6		9		4
								10	5
7	10
			1		3		10	8
								9
8							9
	4	2			5	10			3

Difficulty: Easy (0)

				4			5
			10	2					9
	4						9		6
10	9					4
2			5	1	3
				7	4	2			1
			8					7	5
3		5						4
5					2	6
		6			5

Difficulty: Very easy (0)

		7				4	3
				10		9		7	5
							2
3		6		2			4
	4					2	8
		5	2					10
		1			10		7		2
		4
7	6		1		5
		8	5				10

Difficulty: Very easy (0)

	10	7			4	1	2	3
			3				8
9					8
5					9	4			3
6
									2
10			7	3					1
				8					5
		10				9
	3	9	5	4			7	2

Difficulty: Very easy (0)