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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)