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Salsa #2

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Sun Jan 18, 2009 10:11 am    Post subject: Salsa #2 Reply with quote
Code:
 +-----------------------+
 | 6 2 . | 7 . 4 | 5 . . |
 | 7 4 . | 8 . . | . 2 . |
 | . . 9 | . . 2 | . . . |
 |-------+-------+-------|
 | 2 9 . | . . . | . . . |
 | . . . | . 4 9 | . . 1 |
 | 4 . 1 | . 3 8 | . 9 2 |
 |-------+-------+-------|
 | 9 . . | . . . | . 1 . |
 | . 5 . | . . 1 | 4 . . |
 | . . . | . 2 7 | . . 5 |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site

===== ===== ===== ===== ===== ===== ===== ===== ===== ===== ===== ===== =====

Can be solved using steps from ...

Basics: Naked/Hidden Single, Naked Pair/Triple, Locked Candidate 1/2

Basics+: Naked Quad, Hidden Pair/Triple/Quad

VH: BUG+1, Remote Pair, UR Type 1, X-Wing, XY-Wing

Advanced: 2-String Kite, Empty Rectangle, Skyscraper, UR Type 2, XYZ-Wing

Extreme: finned X-Wing, Multiple Colors, M-Wing, W-Wing, XY-Chain

VH+AE: multi-step VH plus one Advanced and/or one Extreme step.

Extreme+: Swordfish, Jellyfish, (but mostly) Chain
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cgordon



Joined: 04 May 2007
Posts: 769
Location: ontario, canada
PostPosted: Sun Jan 18, 2009 3:12 pm    Post subject: Reply with quote
I used Ers on 3 and 8 and a w-wing on 38 - then almost gave up. Finally spotted another Er on 3 using the T shaped hinge in B3

Code:
            
+-------+-------+-------+   
| . . . | . . . | . 3 . |   
| . . . | . . . | . . . |   
| . . . | 3X . .| 3 3 3 |   
+-------+-------+-------+   
| . . . | . . . | . . . |   
| . . . | . . . | . . . |   
| . . . | . . . | . . . |   
+-------+-------+-------+   
| . . . | . . . | . . . |   
| . . . | . . . | . . . |   
| . . . | 3 . . | . 3 . |
+-------+-------+-------+

I only saw one UR (Type 1) near the end when it wasn't needed. I guess some of the possible solutions get lost in different ways of solving.
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Sun Jan 18, 2009 5:35 pm    Post subject: Reply with quote
Craig,

Nice catch on the final ER. I missed it and had a Sashimi Swordfish for that elimination. Since Sashimi Swordfish isn't in any of my lists of techniques, I had to choose another W-Wing (or one of several M-Wings). Again, Nice going.

Danny
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