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

Severity Level: Very Hard
Download

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

Severity Level: Very Hard
Download

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

Severity Level: Very Hard
Download