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Clement
Joined: 24 Apr 2006
Posts: 1110
Location: Dar es Salaam Tanzania
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 Posted: Sat Feb 06, 2010 11:11 pm Post subject: Feb 7 VH |
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| W-Wing <37>-7=7-<37> eliminating 3 in r4c7 solves the puzzle. |
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George Woods
Joined: 28 Mar 2006
Posts: 304
Location: Dorset UK
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| Posted: Sun Feb 07, 2010 12:23 am Post subject: or a skyscraper |
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| in rows 2 and 7 |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sun Feb 07, 2010 1:52 am Post subject: |
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| I saw four moves which I think would all have solved it. Three of them involved a 2: simple coloring, Kite and Skyscraper. The other one, which I used, was an XY-Wing (237) plus pincer transport. |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Sun Feb 07, 2010 8:41 am Post subject: |
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I saw two skyscrapers 2 either of which solve the puzzle.
I enjoyed this one -- good basics. |
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roaa
Joined: 18 Apr 2009
Posts: 112
Location: Sweden
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| Posted: Sun Feb 07, 2010 8:44 am Post subject: |
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| X-wing:3 followed by xy-wing:247 also solves it |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Sun Feb 07, 2010 3:10 pm Post subject: |
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Another solution using digit 2 is a m-wing with ending pincers in r2c5 & r9c1.
Ted |
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Wendy W
Joined: 04 Feb 2008
Posts: 144
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| Posted: Sun Feb 07, 2010 6:58 pm Post subject: |
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Easy-to-spot skyscraper on rows 2 and 8 knocked out the 2 in R3C6.
Go Saints. |
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Ema Nymton
Joined: 17 Apr 2009
Posts: 89
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| Posted: Tue Feb 09, 2010 1:24 pm Post subject: |
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All the self congratulatory backslapping not withstanding, humbly I ask:
| Code: |
+---------+------------+---------------+
| 27 8 1 | 9 237 4 | 236 5 36 |
| 4 27 3 | 6 27 5 | 9 8 1 |
| 6 5 9 | 8 123 12* | 234 7 34 |
+---------+------------+---------------+
| 37 9 4 | 57 157 6 | 137 2 8 |
| 5 37 8 | 2 4 179 | 1367 39 3679 |
| 1 6 2 | 3 8 79 | 5 49 479 |
+---------+------------+---------------+
| 39 4 6 | 57 579 8 | 37 1 2 |
| 8 23 5 | 1 6 279 | 347 349 3479 |
| 29 1 7 | 4 29 3 | 8 6 5 |
+---------+------------+---------------+
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DRAW/PLAY gives hint of '1' at r3c6. What is the line of reasoning?
Ema
~@:o|
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Tue Feb 09, 2010 4:52 pm Post subject: |
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| Quote: | | DRAW/PLAY gives hint of '1' at r3c6. What is the line of reasoning? |
I don't know if it's DRAW/PLAY's reasoning, but there's a skyscraper on 2 in rows 2 and 8. |
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dulaby
Joined: 02 May 2007
Posts: 13
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| Posted: Wed Feb 10, 2010 7:05 pm Post subject: |
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Ema,
1-9 has to be in box 9 so R8C6 is 27.
2- there is an x-wing on 3( rows 4 and 7) so 3 is out of R3C7 and R8C7
then R3C7 =24 and R8C7=47
3- R8C6,R3C7 and R8C7 form an xy-wing(27,24 and 47) that
eliminates 2 of R3c6 |
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Ema Nymton
Joined: 17 Apr 2009
Posts: 89
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| Posted: Wed Feb 10, 2010 10:43 pm Post subject: |
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| dulaby wrote: | Ema,
1-9 has to be in box 9 so R8C6 is 27.
2- there is an x-wing on 3( rows 4 and 7) so 3 is out of R3C7 and R8C7
then R3C7 =24 and R8C7=47
3- R8C6,R3C7 and R8C7 form an xy-wing(27,24 and 47) that
eliminates 2 of R3c6 |
Bingo.
Thank you. The steps and line of reasoning makes sense and is easy to follow. (Sorry to have to admit to being unable to follow painting skyscrapers with triple x-man wings with a side order of pincer transports.)
~@:o)
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