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

Difficulty: Hard (0)

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

Difficulty: Very easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Super easy (0)