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

Difficulty: Hard (0)

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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Easy (0)