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

Difficulty: Super easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Easy (0)