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Puzzle 10/05/17: (B) VH+

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Tue May 18, 2010 5:19 am    Post subject: Puzzle 10/05/17: (B) VH+ Reply with quote
Code:
 +-----------------------+
 | 8 . . | 6 . . | . . . |
 | . 9 . | . . 8 | 2 . . |
 | . . 4 | 1 . 3 | 7 . . |
 |-------+-------+-------|
 | 4 . 1 | 2 8 . | 3 . 7 |
 | . . . | 3 . . | . . 1 |
 | . 3 2 | . . 7 | . . . |
 |-------+-------+-------|
 | . 7 6 | 8 . . | . . 3 |
 | . . . | . . . | . . . |
 | . . . | 4 7 . | 1 . 2 |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Tue May 18, 2010 10:07 am    Post subject: Reply with quote
Had a lot of fun with this one! First pass it was more like a BBDB with multiple colouring moves on 5s/9s... but on a second look...

Quote:
Type 1 UR(12) r78c16; r7c6<>12, =59 and so...
Remote pair chain(59) (5=9)r7c6-(9=5)r4c6-(5=9)r4c8-(9=5)r5c7; r7c7<>59

Suspect someone cleverer than me can write this as a single move...
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Tue May 18, 2010 4:15 pm    Post subject: Reply with quote
UR (12) with 59 pseudo cell forming triple
Remote Pairs (59)
X-Wings (59) using same cells for both
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