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

Difficulty: Super easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Easy (0)