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Set T_03 Puzzle 34

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Wed Apr 08, 2009 5:01 pm    Post subject: Set T_03 Puzzle 34 Reply with quote
VH

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

Play this puzzle online at the Daily Sudoku site

Code:
   c1b7  Locked Candidate 1              <> 3    [r6c1]
   c4b8  Locked Candidate 1              <> 7    [r6c4]
 r5  b4  Locked Candidate 2              <> 7    [r4c3],[r6c123]
   c1    Naked  Pair                     <> 48   [r89c1]
   c1b7  Naked  Pair                     <> 37   [r89c2]
   c2b7  Locked Candidate 1              <> 4    [r356c2]

         XY-Wing  [r6c4]/[r5c5]+[r6c1]   <> 4    [r5c3],[r6c6]

 r5  b4  Naked  Pair                     <> 79   [r4c3],[r6c23]
   c2    Naked  Triple                   <> 468  [r3c2]

   c24   X-Wing                          <> 8    [r6c136]

         UR Type 1 [r35c23]              <> 79   [r3c3]

 r3  b2  Naked  Pair                     <> 89   [r1c6]

         UR Type 1 [r12c69]              <> 46   [r1c9]


Last edited by daj95376 on Wed Apr 15, 2009 12:16 pm; edited 1 time in total
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gindaani



Joined: 06 Mar 2009
Posts: 79
PostPosted: Thu Apr 09, 2009 8:39 pm    Post subject: Reply with quote
After the basics:

Code:

+--------------+-------------+----------+
| 1  3   5     | 2  7   469  | 8 49 469 |
| 48 2   489   | 1  3   4689 | 7 5  469 |
| 6  789 4789  | 5  489 489  | 3 2  1   |
+--------------+-------------+----------+
| 5  1   389   | 6  2   789  | 4 39 379 |
| 2  79  479   | 3  49  1    | 6 8  5   |
| 48 689 34689 | 89 5   4789 | 2 1  379 |
+--------------+-------------+----------+
| 9  5   68    | 4  68  3    | 1 7  2   |
| 37 48  2     | 78 1   5    | 9 6  34  |
| 37 46  1     | 79 69  2    | 5 34 8   |
+--------------+-------------+----------+

Play this puzzle online at the Daily Sudoku site

Quote:
489 xy-wing
8 x-wing
38-86-64-43 => r4c8<>3


Instead of the final xy chain, you can use a UR, which leads to another UR that solves the puzzle.
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