11						16						10
7							9				2
							10	8		11
	10	9	12			8					7
	13		3							14					15
					5		3			13		8		4
15	12					11			2			14
				15	4							13			16
11			14							7	10
			9			3			12					6	5
	5		8		2			15		1
3					6							1		8
				10					8			7	16	13
					3		13	2
				12				5							4
9						2						11

Difficulty: Easy (0)

					3	8	4		9					2
	8		6		13										16
		10		15	16			6			7	3		8
7
				9	1						8	14			11
			4						13			10
			10			4				15			2
			2		5						14		15	13
	9	11		5						16		2
		6			10				15			1
			1			3						4
4			13	12						9	3
															9
	10		16	3			8			7	13		1
14										10		6		3
	3					16		11	6	14

Difficulty: Easy (0)

			11						16						10
7							9				2
							10	8		11
	10	9	12			8					7
	13		3							14					15
					5		3			13		8		4
15	12					11			2			14
				15	4							13			16
11			14							7	10
			9			3			12					6	5
	5		8		2			15		1
3					6							1		8
				10					8			7	16	13
					3		13	2
				12				5							4
9						2						11

Difficulty: Easy (0)

	11				5					9	14			6	1
				9	15		1				10
														15
				14	4	8		6						16
	1										15			5
						2		13						14	4
			4	8	14							6	12		15
			11				3				2
				11				7				5
14		11	2							3	16	10
13	15						4		11
	4			6										3
	3						8		5	14	13
	8
				5				2		4	11
2	13			7	11					12				1

Difficulty: Very easy (0)