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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)