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

Difficulty: Easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Super easy (0)