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

Difficulty: Super easy (0)

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

Difficulty: Hard (0)

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

Difficulty: Easy (0)

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

Difficulty: Hard (0)