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

Difficulty: Super easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Easy (0)