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Set VH Puzzle 74 -- VH lite

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Sun Feb 01, 2009 5:59 pm    Post subject: Set VH Puzzle 74 -- VH lite Reply with quote
I'm still testing the waters with an easier puzzle.

Code:
 +-----------------------+
 | 6 9 . | 7 3 1 | 4 . . |
 | 5 4 . | . . . | . . . |
 | . . 7 | . . . | . 3 . |
 |-------+-------+-------|
 | 4 . . | 3 . . | 7 . . |
 | 9 . . | . 7 . | 2 4 . |
 | 7 . . | . . 6 | . . . |
 |-------+-------+-------|
 | 8 . . | 4 1 . | . 2 . |
 | . . 4 | . 6 . | 5 7 1 |
 | . . . | . . . | . 9 . |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site

===== ===== ===== ===== ===== ===== ===== ===== ===== Ratings

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, UR Type 1, X-Wing, XY-Wing, XYZ-Wing

VH+: 2-String Kite, Empty Rectangle, Remote Pair, Skyscraper, Colors, UR Type 2

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

Extreme: Jellyfish, (but mostly) Chain

Code:
 r8  b7  Locked Pair                     <> 23   [r7c2],[r9c123]
 r9  b8  Locked Pair                     <> 25   [r8c4],[r789c6]
 r7  b9  Naked  Pair                     <> 36   [r7c26]
 r8  b7  cloned Pair                     <> 23   [r8c46]
 r9  b8  cloned Pair                     <> 25   [r9c1236]
 r5      Naked  Triple                   <> 158  [r5c29]
   c9    Naked  Pair                     <> 36   [r346c9]
   c6b5  Locked Candidate 2              <> 5    [r56c4],[r4c5]
 r5  b5  Locked Candidate 2              <> 8    [r4c56],[r6c4]
   c5b2  Locked Candidate 2              <> 8    [r2c46],[r3c4]

         XYZ-Wing [r4c8]/[r4c2]+[r6c8]   <> 8    [r4c9]

 r4      Naked  Triple                   <> 259  [r4c3]
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wapati



Joined: 10 Jun 2008
Posts: 472
Location: Brampton, Ontario, Canada.
PostPosted: Wed Feb 04, 2009 3:51 pm    Post subject: Reply with quote
This reminds me of the "One Trick Pony" puzzles that Ruud used to post.

If you ignore the "trick" there is a lot of work to do!
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