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

Difficulty: Easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)