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

Difficulty: Hard (0)

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

Difficulty: Easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Easy (0)