Sudoku v.2.0.0

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Expert

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

Advanced

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

Very Hard

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

Hard

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

Moderate

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

Easy

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

Very Easy

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

7	8	9
4	5	6
1	2	3
	0