Sudoku v.2.0.0

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Expert

						1
			4
	1					3
				3				7
	8
		7				9
	9	1

			1			6

Advanced

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

Very Hard

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

Hard

		2		3

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

Moderate

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

Easy

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

Very Easy

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

7	8	9
4	5	6
1	2	3
	0