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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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 Posted: Fri Dec 07, 2007 6:58 pm Post subject: "expert rated puzzle" from kakuropuzzle.com |
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| Code: | -------------------------
| 3 . . | 7 . 5 | . 9 8 |
| . 4 2 | . . . | . . . |
| . 5 . | . . 1 | 7 . . |
|-----------------------|
| . 8 . | . . 2 | 5 . . |
| . . . | . 4 . | 8 . . |
| 1 . . | 3 . . | . . . |
|-----------------------|
| 5 . . | 1 . . | . 7 . |
| . . 9 | . . . | 1 . . |
| 2 3 . | . . . | . . . |
------------------------- |
http://www.kakuropuzzle.com/sudoku-free-puzzles.php
I guess I could practice my coloring on this one. I found a finned x-wing first  |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Fri Dec 07, 2007 7:35 pm Post subject: |
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| Code: | ------------------------------------------------------------------------------|
| 3 1 6 | 7 2 5 | 4 9 8 |
| 7 4 2 | 8 369 369 | 36 15 15 |
| 9 5 8 | 4 36 1 | 7 236 236 |
------------------------------------------------------------------------------|
| 4 8 37 | 69 1 2 | 5 36 3679 |
| 6 29 357 | 59 4 79 | 8 123 12379 |
| 1 29 57 | 3 56789 6789 | 269 246 24679 |
------------------------------------------------------------------------------|
| 5 6 4 | 1 389 389 | 239 7 239 |
| 8 7 9 | 2 356 346 | 1 3456 3456 |
| 2 3 1 | 569 5679 4679 | 69 8 4569 |
------------------------------------------------------------------------------|
after basics
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Asellus
Joined: 05 Jun 2007
Posts: 865
Location: Sonoma County, CA, USA
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| Posted: Fri Dec 07, 2007 11:23 pm Post subject: |
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That Finned X-Wing is also an ER.
The puzzle can be solved in many steps using XY-Chains/Wings, a Skyscraper, another ER (Sashimi X-Wing) and some basic coloring. (I didn't keep notes, but don't think I left anything out.)
Or, there's a novel grouped coloring exploiting a UR. No time now. Maybe I'll post it later. |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Sun Dec 09, 2007 7:36 pm Post subject: |
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| ok, two xy chains, and coloring on 6 at the end |
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