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

Difficulty: Easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Easy (0)