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

Difficulty: Very easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Easy (0)