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

Difficulty: Easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Easy (0)