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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)