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

Difficulty: Easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Hard (0)

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

Difficulty: Easy (0)