7				3	5		12
				6	10		11		12
10		9	7			3
	6	10		1						2
		8		11							12
	2	11			9			12
			2			8			3	11
6							7		4
	10						5		2	12
					1			9	5		8
		7		5		2	3
				2		12	10				11

Difficulty: Easy (0)

	1			6					3
		6			8	1		2			10
			5		4		12		1	3
	12					7					6
4			12	1				9	8
			7		11			10		1
	11		8			5		1
		8	6				7	5			2
5					6					11
	10	4		8		6		12
12			9		10	4			7
		12					1			10

Difficulty: Very easy (0)

2		10	9				8			4
	4						9				2
			7			4		10			11
			8						5	1
10		11	5						9		1
	1		2					6
			4					11		8
12		5						9	3		6
	12	2						8
8			3		10			5
4				7						3
	10			8				7	12		9

Difficulty: Very easy (0)

							10	9	12	3
		3	1
			6		3		2	11			9
	12	8									4
	1				11			2	10		7
			12	6						1	5
12	6						8	4
5		10	4			6				2
2									11	7
1			8	7		12		3
								5	2
	8	5	10	3

Difficulty: Easy (0)