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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)

							6
5				7
	9
					5			8
		4					1
	5
				4
				9				1

Difficulty: Very hard (0)

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

Difficulty: Super easy (0)