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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Sun May 03, 2009 3:11 pm Post subject: Puzzle NR_007 |
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| Code: | +-----------------------+
| 1 . . | 9 . 3 | . . . |
| . 9 . | . . 8 | . . 6 |
| . . 2 | . 4 . | . . . |
|-------+-------+-------|
| 3 . . | 6 . . | . . 5 |
| . . 6 | . 1 . | . 3 2 |
| 2 4 . | . . 7 | . 6 . |
|-------+-------+-------|
| . . . | . . . | 6 . . |
| . . . | . 3 5 | . 8 7 |
| . 7 . | 4 6 . | . 2 3 |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site
Last edited by daj95376 on Sun May 03, 2009 7:02 pm; edited 1 time in total |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Sun May 03, 2009 5:53 pm Post subject: |
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I needed: | Quote: | | two skyscrapers 4, 9 setting up a w-wing 45 on 4 |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Sun May 03, 2009 10:52 pm Post subject: |
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I found a two step solution: | Quote: | ER 9 with hinge in box9 and strong link in row5,
then a w-wing 45 in r1c8 & r7c1 with strong link 4 in col9. |
Ted |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Mon May 04, 2009 3:17 am Post subject: |
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alternate two stepper
xy-chain 97-79-94-49
xyz-wing {1,4,9} in box 9 |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Thu May 07, 2009 1:06 am Post subject: |
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| I used the 149 XYZ-Wing, but don't know that it affected anything. There was a potential DP on 18. Of the three ways to kill it, one led to an invalidity. Then a 1 got removed from one of the cells based on a hidden UR and that finished it. |
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gindaani
Joined: 06 Mar 2009
Posts: 79
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| Posted: Thu May 07, 2009 8:05 pm Post subject: |
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I used 4 steps, but they are all very easy steps:
149 xyz-wing
5 skyscraper
7 x-wing
4 skyscraper |
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Thu May 07, 2009 9:08 pm Post subject: |
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| gindaani wrote: | I used 4 steps, but they are all very easy steps:
149 xyz-wing
5 skyscraper
7 x-wing
4 skyscraper |
Although NR puzzles have the potential for very difficult techniques being present, the majority of my NR puzzles are often VH puzzles with XYZ-Wing, URs above Type 1, and/or moderate techniques like Skyscraper, 2-String Kite, and/or Empty Rectangle.
Variety of techniques present is of higher priority in NR puzzles than use of very difficult techniques. The XY puzzles often require more difficult techniques.
BTW: You'd be surprised how many solutions for my puzzles fail to include an important XYZ-Wing. Congratulations on finding it in this puzzle. |
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