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

Difficulty: Easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Harder (0)

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

Difficulty: Harder (0)