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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Super easy (0)