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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)