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

Difficulty: Easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Easy (0)