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Puzzle 11/07/07: ~ Advanced

 
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daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Thu Jul 07, 2011 11:09 pm    Post subject: Puzzle 11/07/07: ~ Advanced Reply with quote

Code:
 +-----------------------+
 | 3 . . | . 2 . | 5 . . |
 | . . 5 | . 8 . | . 6 . |
 | . 9 . | . 1 5 | 8 . 2 |
 |-------+-------+-------|
 | . . . | . 4 . | . 9 . |
 | 9 7 4 | 1 3 . | 2 . 5 |
 | . . 3 | . . 2 | . . . |
 |-------+-------+-------|
 | 8 . 2 | . 9 . | 4 3 . |
 | . 3 . | 8 . . | 9 2 . |
 | . . 9 | . 6 . | . . . |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site
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JC Van Hay



Joined: 13 Jun 2010
Posts: 368
Location: Charleroi, Belgium

PostPosted: Fri Jul 08, 2011 7:24 am    Post subject: Reply with quote

Quote:
ER 1C8B1 => -1r6c1
XYZ Wing (-147)r9c12,r2c1 => -1r8c1
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susume



Joined: 13 May 2011
Posts: 36
Location: Southeastern US

PostPosted: Sat Jul 09, 2011 5:04 am    Post subject: Reply with quote

Code:
+---------------+----------+---------------+
| 3    14   8   | 6  2  79 | 5    147 1479 |
| 17   2    5   | 4  8  79 | 137  6   1379 |
| 467  9    67  | 3  1  5  | 8    47  2    |
+---------------+----------+---------------+
| 2    56   16  | 57 4  8  | 1367 9   137  |
| 9    7    4   | 1  3  6  | 2    8   5    |
| 156  8    3   | 9  57 2  | 167  147 147  |
+---------------+----------+---------------+
| 8    56   2   | 57 9  1  | 4    3   67   |
| 1567 3    167 | 8  57 4  | 9    2   167  |
| 147  14   9   | 2  6  3  | 17   5   8    |
+---------------+----------+---------------+

I hope this notation is right:
Quote:
anp (17=4)r29c1-(4=1)r9c2-(1)r1c2=(1)r2c1 => r68c1<>1
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daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Sat Jul 09, 2011 6:18 am    Post subject: Reply with quote

susume wrote:
I hope this notation is right:

I found it readable. Congratulations!
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tlanglet



Joined: 17 Oct 2007
Posts: 2461
Location: Northern California Foothills

PostPosted: Sat Jul 09, 2011 12:54 pm    Post subject: Reply with quote

It appears that I had a couple of unnecessary steps ...........

xy-wing (67-1) vertex r3c3; r6c1<>1
xyz-wing(147)r1c82|3c8; r1c9<>4
er(1); r6c1<>1
xyz-wing(147)r9c12|r2c1; r8c1<>1

Ted
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tlanglet



Joined: 17 Oct 2007
Posts: 2461
Location: Northern California Foothills

PostPosted: Sat Jul 09, 2011 12:57 pm    Post subject: Reply with quote

susume wrote:
Code:
+---------------+----------+---------------+
| 3    14   8   | 6  2  79 | 5    147 1479 |
| 17   2    5   | 4  8  79 | 137  6   1379 |
| 467  9    67  | 3  1  5  | 8    47  2    |
+---------------+----------+---------------+
| 2    56   16  | 57 4  8  | 1367 9   137  |
| 9    7    4   | 1  3  6  | 2    8   5    |
| 156  8    3   | 9  57 2  | 167  147 147  |
+---------------+----------+---------------+
| 8    56   2   | 57 9  1  | 4    3   67   |
| 1567 3    167 | 8  57 4  | 9    2   167  |
| 147  14   9   | 2  6  3  | 17   5   8    |
+---------------+----------+---------------+

I hope this notation is right:
Quote:
anp (17=4)r29c1-(4=1)r9c2-(1)r1c2=(1)r2c1 => r68c1<>1


susume, great to see another contributor using an "almost" move. Your solution was clean and simple; mine was a four stepper.

Ted
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dejsmith



Joined: 23 Oct 2005
Posts: 40

PostPosted: Sat Jul 09, 2011 5:55 pm    Post subject: Reply with quote

Usually I am the guy who takes lots of extra steps; but this one seemed to fall apart quite easily for me.

1. UR 79 w/X Wing 9; r12c9<>7
2. W Wing 17 r2c1/r9c7 w/SL 1c2; r2c7<>7 & r9c1<>7

Dave
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daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Sat Jul 09, 2011 9:47 pm    Post subject: Reply with quote

I'm glad everyone had a nice time solving this puzzle.
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Marty R.



Joined: 12 Feb 2006
Posts: 5157
Location: Rochester, NY, USA

PostPosted: Mon Jul 11, 2011 1:20 am    Post subject: Reply with quote

Quote:
2. W Wing 17 r2c1/r9c7 w/SL 1c2; r2c7<>7 & r9c1<>7

Dave's W-Wing did it for me.
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