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

Difficulty: Easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Super easy (0)