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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Sat Jun 05, 2010 5:11 pm Post subject: Puzzle 10/06/05: (B) BBDB |
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| Code: | +-----------------------+
| 7 . . | 6 . . | . 1 . |
| . . . | 4 3 . | 7 . . |
| . . 4 | . . . | 5 . 3 |
|-------+-------+-------|
| 3 5 . | 9 . . | 1 . . |
| . 7 . | . . 3 | . . 8 |
| . . . | . 1 6 | . . 5 |
|-------+-------+-------|
| . 4 7 | 8 . . | . . . |
| 1 . . | . . . | . 5 . |
| . . 6 | . 4 7 | . . 1 |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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Mogulmeister
Joined: 03 May 2007
Posts: 1151
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| Posted: Sat Jun 05, 2010 10:02 pm Post subject: |
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| Zwei Sprünge vorgeschrieben wrote: | 1.(8)r1c7=(8-5)r1c6=r1c3-(5=9)r2c3-r2c9=(9-8)r3c8=(8)r1c7; r1c7=8
2. XYZ Wing <238> vertex at r8c2; r9c2<>3
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Last edited by Mogulmeister on Sun Jun 06, 2010 7:57 am; edited 1 time in total |
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peterj
Joined: 26 Mar 2010
Posts: 974
Location: London, UK
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| Posted: Sat Jun 05, 2010 10:07 pm Post subject: |
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Three steps with plenty of alternative paths - thanks!
| Quote: | w-wing(29) (9=2)r1c5-r1c7=c9c7-(2=9)r7c9; r7c5<>9
xy-chain (9=5)r2c3-(5=3)r1c3-(3=2)r1c2-(2=8)r1c7-(8=9)r3c8; r2c9<>9, r3c1<>9 ... or skyscraper(9)
xyz-wing(238) r8c2; r9c2<>3 ... or BUG+1 |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sun Jun 06, 2010 10:13 pm Post subject: |
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There was a Type 3 UR (89) with a pseudo cell forming a naked pair. But I used an M-Wing (29), flightless, with pincer transport, which made the same elimination as the UR would have.
Then an XYZ-Wing (238) and simple coloring on 9. |
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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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| Posted: Mon Jun 07, 2010 2:03 am Post subject: |
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I am glad to see the term "flightless" is making a comeback. I think it is very descriptive, particularly as a prelude to a wing extension.
Keith |
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