Sudoku v.2.0.0

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Expert

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

Advanced

	7				3			2
2		3	6			7		5

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

Very Hard

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

Hard

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

Moderate

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

Easy

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

Very Easy

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

7	8	9
4	5	6
1	2	3
	0