2		5		10	3
		3		6				9
		10	8		6	4
		5				1		8
	3			8	2	7
			7	4	9			10
	2		3				6
			9	1		2	5
	6				1		7
		4	1		8		9

Difficulty: Very easy (0)

2				8	1		9		6
		9	1		5	8
10	5
						7		10	9
	9		5				6	3	8
3	4	6				9		7
1	2		6
								6	1
			10	3		6	4
8		7		4	2				10

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)

5	4					2	6	1
6			10	8
9				10
4		6	2	7		5		8
		1		6	7	9
			9	5	2		1
	7		6		5	1	4		10
					8				7
					4	10			6
	6	10	5					7	3

Difficulty: Very easy (0)