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

Difficulty: Easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Easy (0)