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

Difficulty: Super easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Super easy (0)