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

Difficulty: Very easy (0)

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

Difficulty: Hard (0)

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

Difficulty: Super easy (0)

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

Difficulty: Hard (0)