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

Difficulty: Hard (0)

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

Difficulty: Harder (0)

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

Difficulty: Easy (0)

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

Difficulty: Easy (0)