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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)