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

Difficulty: Super easy (0)

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

Difficulty: Super easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)