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

Difficulty: Easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Super easy (0)