Sudoku v.2.0.0

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Expert

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

Advanced

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

Very Hard

			3	7

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

Hard

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

Moderate

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

Easy

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

Very Easy

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

7	8	9
4	5	6
1	2	3
	0