Easy Puzzle #46 - One Possible Solution Approach…
	NB:  There is only one final solution to this Sudoku puzzle…
	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			7	4		5		9	8		Easy Puzzle #46 - November 15, 2005
2	4	3		9	2						Original puzzle as published © joe-ks.com
3		9	2		6	1			3
4		4	3	1					9
5						6	1	5
6		1	5		8			2	4
7						8		4
8	2		4	5	9			6	1
9		7	6	2		4			5
	A	B	C	D	E	F	G	H	I
1			7	4	3	5		9	8		Step 1: #3 is in Rows 2 & 3: #3 MUST go in Cell E1...
2	4	3		9	2
3		9	2		6	1			3		Step 2: #4 is in Rows 4 & 6: #4 MUST go in Cell E5
4		4	3	1					9		(#4 in Column D @ D1 excludes use of Cell D5)
5					4	6	1	5
6		1	5		8			2	4		Step 3: #6 is in Rows 8 & 9: #6 MUST go in Cell D7
7				6		8		4			(#6 in Column E @ E3 excludes use of Cell E7)
8	2		4	5	9			6	1
9		7	6	2		4			5
	A	B	C	D	E	F	G	H	I
1			7	4	3	5		9	8		Step 4: #2 is in ColumnsA & C: #2 MUST go in Cell B5...
2	4	3		9	2			1
3		9	2	8	6	1			3		Step 5: #8 is in Columns E & F: #8 MUST go in Cell D3...
4		4	3	1					9
5		2			4	6	1	5			Step 6: #1 is in Columns G & I: #1 MUST go in Cell H2
6		1	5		8			2	4		(#1 in Row 3 @ F3 excludes use of Cell H3)
7				6		8		4
8	2		4	5	9			6	1
9		7	6	2		4			5
	A	B	C	D	E	F	G	H	I
1			7	4	3	5		9	8		Step 7: Complete Block BB: #7 MUST go in Cell F2...
2	4	3		9	2	7		1
3		9	2	8	6	1			3		Step 8: #5 is in Rows 5 & 6: #5 MUST go in Cell E4
4		4	3	1	5				9		(#5 in Column F @ F1 excludes use of Cell F4)
5		2			4	6	1	5
6		1	5		8			2	4
7				6		8		4
8	2		4	5	9			6	1
9		7	6	2		4			5
	A	B	C	D	E	F	G	H	I
1			7	4	3	5		9	8		Step 9: #8 is in Rows 1 & 3: #8 MUST go in Cell C2...
2	4	3	8	9	2	7		1
3		9	2	8	6	1			3		Step 10: #2 is in Rows 5 & 6: #2 MUST go in Cell F4...
4		4	3	1	5	2			9
5		2			4	6	1	5
6		1	5		8			2	4
7				6		8		4
8	2		4	5	9			6	1
9		7	6	2		4			5
	A	B	C	D	E	F	G	H	I
1	1		7	4	3	5		9	8		Step 11: Complete Column C: need #s 1 & 9…
2	4	3	8	9	2	7		1			#1 can't go in Cell C5 (cf #1 in Row 5 @ G5), so
3		9	2	8	6	1			3		#1 MUST go in Cell C7, & therefore #9 MUST go in Cell C5
4		4	3	1	5	2			9
5		2	9		4	6	1	5			Step 12: #1 is now in Columns B & C: #1 MUST go in Cell A1
6		1	5		8			2	4		(#1 in Row 3 @ F3 excludes use of Cell A3)
7			1	6		8		4
8	2		4	5	9			6	1
9		7	6	2		4			5
	A	B	C	D	E	F	G	H	I
1	1	6	7	4	3	5	2	9	8		Step 13: Complete Row 1: need #s 2 & 6…
2	4	3	8	9	2	7		1			#2 can't go in Cell B1 (cf #2 in Column B @ B5), so
3	5	9	2	8	6	1			3		#2 MUST go in Cell G1, & therefore #6 MUST go in Cell B1
4		4	3	1	5	2			9
5		2	9		4	6	1	5			Step 14: Complete Block AA: #5 MUST go in Cell A3…
6		1	5		8			2	4
7		5	1	6		8		4			Step 15: #5 is now in Columns A & C: #5 MUST go in Cell B7
8	2		4	5	9			6	1		(#5 in Row 8 @ D8 excludes use of Cell B8)
9		7	6	2		4			5
	A	B	C	D	E	F	G	H	I
1	1	6	7	4	3	5	2	9	8		Step 16: Complete Column B: #8 MUST go in Cell B9...
2	4	3	8	9	2	7	5	1
3	5	9	2	8	6	1			3		Step 17: #5 is in Columns H & I: #5 MUST go in Cell G2
4		4	3	1	5	2			9		(#5 in Row 3 @ A3 excludes use of Cell G3)
5		2	9		4	6	1	5
6		1	5		8			2	4
7		5	1	6		8		4
8	2	8	4	5	9			6	1
9		7	6	2		4			5
	A	B	C	D	E	F	G	H	I
1	1	6	7	4	3	5	2	9	8		Step 18: #9 is in Rows 4 & 5: #9 MUST go in Cell F6
2	4	3	8	9	2	7	5	1	6		(#9 in Column D @ D2 excludes use of Cell D6)
3	5	9	2	8	6	1			3
4		4	3	1	5	2			9		Step 19: Complete Row 2: #6 MUST go in Cell I2...
5		2	9		4	6	1	5
6		1	5		8	9		2	4
7		5	1	6		8		4
8	2	8	4	5	9			6	1
9		7	6	2		4			5
	A	B	C	D	E	F	G	H	I
1	1	6	7	4	3	5	2	9	8		Step 20: Complete Row 3: need #s 4 & 7…
2	4	3	8	9	2	7	5	1	6		#4 can't go in Cell H3 (cf #4 in Column H @ H7), so
3	5	9	2	8	6	1	4	7	3		#4 MUST go in Cell G3, & therefore #7 MUST go in Cell H3
4		4	3	1	5	2			9
5		2	9		4	6	1	5			Step 21: Complete Column E: need #s 1 & 7…
6		1	5		8	9		2	4		#1 can't go in Cell E7 (cf #1 in row 7 @ C7), so
7		5	1	6	7	8		4			#1 MUST go in Cell E9, & therefore #7 MUST go in Cell E7
8	2	8	4	5	9			6	1
9		7	6	2	1	4			5
	A	B	C	D	E	F	G	H	I
1	1	6	7	4	3	5	2	9	8		Step 22: Complete Block HH: #3 MUST go in Cell F8...
2	4	3	8	9	2	7	5	1	6
3	5	9	2	8	6	1	4	7	3		Step 23: Complete Row 8: #7 MUST go in Cell G8...
4		4	3	1	5	2			9
5		2	9		4	6	1	5	7		Step 24: #7 is now in Columns G & H: #