5	7
		1		3
	4	6				8
		5
					8
	8				7	6
			3		4
	6	8

Difficulty: Medium (0)

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

Difficulty: Easy (0)

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

Difficulty: Super easy (0)

							6
1						7
	8			3	4		7
6
							3
7		1	8			5
	5						1
3

Difficulty: Very easy (0)