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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Easy (0)