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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Thu Mar 19, 2009 3:16 pm Post subject: Set T_02 Puzzle 25 |
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VH+
| Code: | +-----------------------+
| . 7 . | . . . | . . 8 |
| 2 6 . | . . . | 9 . . |
| . . 9 | . . . | . 6 1 |
|-------+-------+-------|
| . . . | 2 . . | 8 . 6 |
| . . . | . 9 . | . 7 . |
| . . . | . . 7 | 3 1 . |
|-------+-------+-------|
| . 8 . | 1 . 9 | . 4 . |
| . . 5 | . 2 6 | 1 3 . |
| 1 . 6 | 7 . . | . . . |
+-----------------------+
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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: Fri Mar 20, 2009 3:03 pm Post subject: |
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Great puzzle! Another BBDB VH. My seven steps included: | Quote: | Skyscraper <2>,
coloring <8>,
skyscraper <5> with pincer transport,
xy-wing <245> with pincer transport,
ER <3>,
Type 3 UR <37>,
m-wing to delete <5> from r5c46.
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Ted  |
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gindaani
Joined: 06 Mar 2009
Posts: 79
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| Posted: Fri Mar 20, 2009 3:18 pm Post subject: |
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Do people consider x-wings, and finned x-wings "the basics?" I'm inclined to include them, and possibly skyscrapers, in with the basics. I look for them while I'm looking for locked rows, single placement, etc.
Anyway, after 2 x-wings, 2 finned x-wings, and some other basics:
| Quote: | 357 xyz wing
245 xy wing
345 xyz wing
48 remote pairs eliminating 8 from r3c5 and r6c1 to finish it off
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Fri Mar 20, 2009 4:00 pm Post subject: |
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| gindaani wrote: | | Do people consider x-wings, and finned x-wings "the basics?" |
Here's my unofficial rating system for the puzzles I post. I only post puzzles in the VH, VH+, and Advanced ratings. Because the presence of an XYZ-Wing in a VH puzzle is often overlooked, I now identify VH puzzles where an XYZ-Wing might be needed in the solution.
===== ===== ===== ===== ===== ===== ===== ===== ===== Ratings are Accumulative
Basics: Naked/Hidden Single, Naked Pair/Triple, Locked Candidate 1/2
Basics+: Naked Quad, Hidden Pair/Triple/Quad
VH: BUG+1, UR Type 1, X-Wing, XY-Wing, XYZ-Wing
VH+: 2-String Kite, Empty Rectangle, Remote Pair, Skyscraper, finned/Sashimi X-Wing, UR Type 2
Advanced: M-Wing, W-Wing, XY-Chain, other URs
Extreme: Chain
Note: Many user's use extended and transport to describe how they take one technique and use the pincers/end cells to create a short chain to perform an elimination. Many user's also use the term pseudo-cell.
These terms were new to me when I joined this forum. Their meaning is not documented in the Terminology sub-group, and I learned them by observing examples where they were used. |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Mon Apr 06, 2009 1:27 am Post subject: |
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Agree with Ted. I took nine steps, including three ERs and an XY, two XYZs and two Ws. It was the third ER which opened up the 2nd W to finish it off. |
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