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

Difficulty: Easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)