Sudoku v.2.0.0

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Expert

			8			5
		6		1
		5			4		7
		1						9
9
			9

				2
					7

Advanced

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

Very Hard

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

Hard

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

Moderate

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

Easy

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

Very Easy

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

7	8	9
4	5	6
1	2	3
	0