Easy Puzzle #22 - One Possible Solution Approach…
	NB:  There is only one final solution to this Sudoku puzzle…
	Rules: Place a number from 1-9 in each empty cell so that each row, each column AND each 3x3 block contains all the numbers from 1-9.
	A	B	C	D	E	F	G	H	I
1
2	AA			BB			CC				Reference to 3x3 Blocks AA, BB & CC
3
4
5	DD			EE			FF				Reference to 3x3 Blocks DD, EE & FF
6
7
8	GG			HH			II				Reference to 3x3 Blocks GG, HH & II
9
	A	B	C	D	E	F	G	H	I
1			4			5			3		Easy Puzzle #22 - October 22, 2005
2	2			8		6		4			Original puzzle as published on joe-ks.com…
3		3			4		2
4			5	1		3			7
5		8		2				6
6	1			4			3		5
7			1		9			7
8		9		3		8			6
9	8		7	5			9
	A	B	C	D	E	F	G	H	I
1			4			5			3		Step 1: #3 is in Rows 1 & 3: #3 MUST go in Cell E2…
2	2			8	3	6		4
3		3			4		2
4			5	1		3			7		Step 2: #7 is in Rows 7 & 9: #7 MUST go in Cell E8…
5		8		2				6
6	1			4			3		5
7			1		9			7
8		9		3	7	8			6
9	8		7	5			9
	A	B	C	D	E	F	G	H	I
1			4			5			3		Step 3: #5 is in Columns D & F: #5 MUST go in Cell E5
2	2			8	3	6		4			(#5 in Row 4 @ C4 excludes use of Cell E4, & #5 in Row 6
3		3			4		2				@ I6 excludes use of Cell E6)
4			5	1		3			7
5		8		2	5			6
6	1			4			3		5
7			1		9			7
8		9		3	7	8			6
9	8		7	5			9
	A	B	C	D	E	F	G	H	I
1			4			5			3		Step 4: #3 is in Column G & I: #3 MUST go in Cell H9
2	2			8	3	6		4			(#3 in Row 8 @ D8 excludes use of Cell H8)
3		3			4		2
4			5	1		3			7		Step 5: Now you have #3 in Rows 8 & 9…
5		8		2	5			6			#3 MUST go in Cell A7
6	1			4			3		5		(cf #3 in Column B @ B3 excludes use of Cell B7)
7	3		1		9			7
8		9		3	7	8			6
9	8		7	5			9	3
	A	B	C	D	E	F	G	H	I
1			4			5			3		Step 6: #3 is in Columns A & B: #3 MUST go in Cell C5
2	2			8	3	6		4			(cf #3 is Row 6 @ G6 excludes use of Cell C6)
3		3			4		2
4			5	1		3			7
5		8	3	2	5			6
6	1			4			3		5
7	3		1		9			7
8		9		3	7	8			6
9	8		7	5			9	3
	A	B	C	D	E	F	G	H	I
1			4			5	6		3		Step 7: #8 is in Column A & B: #8 MUST go in Cell C3
2	2			8	3	6		4			(cf #8 in Row 2 @ D2 excludes use of Cell C2)
3		3	8		4		2
4			5	1		3			7
5		8	3	2	5			6			Step 8: #6 is in Columns H & I: #6 MUST go in Cell G1
6	1			4			3		5		(cf #6 in Row 2 @ F2 excludes use of Cell G2)
7	3		1		9			7
8		9		3	7	8			6
9	8		7	5			9	3
	A	B	C	D	E	F	G	H	I
1			4			5	6		3		Step 9: #7 is in Columns H & I: #7 MUST go in Cell G2…
2	2	5		8	3	6	7	4
3		3	8		4		2				Step 10: Row 2 needs #5: #5 MUST go in Cell B2
4			5	1		3			7		(cf #5 in Column C @ C4 excludes Cell C2;
5		8	3	2	5			6			#5 in Column I @ I6 excludes Cell I2)
6	1			4			3		5
7	3		1		9			7
8		9		3	7	8			6
9	8		7	5			9	3
	A	B	C	D	E	F	G	H	I
1			4			5	6		3		Step 11: Complete Row 2: need #s 1 & 9…
2	2	5	9	8	3	6	7	4	1		#1 can't go in Cell C2 (cf #1 in Column C @ C7), so
3		3	8		4		2				#1 MUST go in Cell I2, & therefore #9 MUST go in Cell C2
4			5	1		3			7
5		8	3	2	5			6
6	1			4			3		5
7	3		1		9			7
8		9		3	7	8			6
9	8		7	5			9	3
	A	B	C	D	E	F	G	H	I
1			4			5	6		3		Step 12: Complete Column C: need #s 2 & 6…
2	2	5	9	8	3	6	7	4	1		#6 can’t go in Cell C8 (cf #6 in Row 8 @ I8), so
3		3	8		4		2				#6 MUST go ni Cell C6, & therefore #2 MUST go in Cell C8
4			5	1		3			7
5		8	3	2	5			6
6	1		6	4			3		5
7	3		1		9			7
8		9	2	3	7	8			6
9	8		7	5			9	3
	A	B	C	D	E	F	G	H	I
1		1	4			5	6	8	3		Step 13: Block AA needs #1: #1 MUST go in Cell B1
2	2	5	9	8	3	6	7	4	1		(cf #1 in Column A @ A6 excludes use of Cells A1 & A3)
3		3	8		4		2
4			5	1		3			7		Step 14: Block CC needs #8: #8 MUST go cin Cell H1
5		8	3	2	5			6			(cf #8 in Row 3 @ C3 excludes use of Cells H3 & I3)
6	1		6	4<