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

Difficulty: Very easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)