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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Wed Jul 06, 2011 4:51 pm Post subject: Puzzle 11/07/06: ~ XY |
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Code: | +-----------------------+
| 8 . . | . . 9 | . . 2 |
| . 1 5 | 2 7 . | 9 . . |
| . 2 7 | . 8 . | . . 5 |
|-------+-------+-------|
| . 6 . | . 9 2 | . . . |
| . 5 2 | 4 1 . | . . 6 |
| 4 . . | 5 . 3 | . 2 7 |
|-------+-------+-------|
| . 7 . | . . . | . . 3 |
| . . . | . . 5 | . 7 . |
| 2 . 4 | . 3 7 | 5 . 9 |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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tlanglet
Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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Posted: Wed Jul 06, 2011 9:29 pm Post subject: |
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A quick step...........
Quote: | w-wing (16)r8c1|r9c8 GSL(6)r2c168; r8c79<>1 |
Ted |
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Marty R.
Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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Posted: Thu Jul 07, 2011 5:03 am Post subject: |
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Nice find Ted. I was looking and missed it.
I played a couple of X-Wings on 1, an apparently worthless Type 4 UR on 24 and an AIC; r2c6<>6. |
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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Thu Jul 07, 2011 6:00 am Post subject: |
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Code: | after basics and w/Ted's cells marked
+-----------------------------------------------------------------------+
| 8 4 36 | 136 5 9 | 7 136 2 |
| #36 1 5 | 2 7 @46 | 9 #3468 48 |
| 9 2 7 | 136 8 146 | 146 1346 5 |
|-----------------------+-----------------------+-----------------------|
| 13 6 138 | 7 9 2 | 148 5 148 |
| 7 5 2 | 4 1 8 | 3 9 6 |
| 4 9 18 | 5 6 3 | 18 2 7 |
|-----------------------+-----------------------+-----------------------|
| 5 7 169 | 89 24 16 | 12468 1468 3 |
| *16 3 169 | 89 24 5 | 12468 7 148 |
| 2 8 4 | 16 3 7 | 5 *16 9 |
+-----------------------------------------------------------------------+
# 54 eliminations remain
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Ted, do you mean an almost W-Wing? |
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tlanglet
Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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Posted: Thu Jul 07, 2011 12:17 pm Post subject: |
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Danny,
I did not think of the pattern as an almost w-wing, but it definitely could be viewed that way. My POV was simply a group of (6s) which, in this case, could also be considered as a Kraken Row: (6)r2.
Terminology is $#*&^.............
Ted |
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susume
Joined: 13 May 2011 Posts: 36 Location: Southeastern US
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Posted: Thu Jul 14, 2011 1:40 pm Post subject: |
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I still need some help seeing this. I see the W wing if r2c6<>6, but not how the alternative of r2c6=6 leads to eliminations in r8 - seems to me it targets row 7 instead. Can someone please clarify?
Thanks |
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tlanglet
Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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Posted: Thu Jul 14, 2011 2:09 pm Post subject: |
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susume wrote: | I still need some help seeing this. I see the W wing if r2c6<>6, but not how the alternative of r2c6=6 leads to eliminations in r8 - seems to me it targets row 7 instead. Can someone please clarify?
Thanks |
Susme,
How about: (6)r2c6-r13c4=r9c4-(6=1)r9c8
Sometimes the obvious to the hardest to see......
Ted |
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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Thu Jul 14, 2011 2:15 pm Post subject: |
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susume wrote: | I still need some help seeing this. I see the W wing if r2c6<>6, but not how the alternative of r2c6=6 leads to eliminations in r8 - seems to me it targets row 7 instead. Can someone please clarify?
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You need to proceed past r7c6 in your logic:
Code: | (6)r2c6 - r7c6 = r9c4 - (6=1)r9c8 => r8c79<>1
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Regards, Danny |
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susume
Joined: 13 May 2011 Posts: 36 Location: Southeastern US
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Posted: Thu Jul 14, 2011 7:48 pm Post subject: |
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Lol my eye was stuck on that one cell and I couldn't see beyond it! Thanks, gentlemen. |
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