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

Difficulty: Easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Easy (0)