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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)