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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Hard (0)