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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)