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Puzzle 11/08/24: ~ Advanced (BBDB?)

 
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daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Wed Aug 24, 2011 5:11 pm    Post subject: Puzzle 11/08/24: ~ Advanced (BBDB?) Reply with quote

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

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Marty R.



Joined: 12 Feb 2006
Posts: 5064
Location: Rochester, NY, USA

PostPosted: Fri Aug 26, 2011 4:44 am    Post subject: Reply with quote

Finned X-Wing; r3c9<>5
XY-Wing (581); r3c2<>1
XY-Wing (145); r8c4<>5
W-Wing (58), SL 8 in c9; r2c4<>5
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SudoQ



Joined: 02 Aug 2011
Posts: 127

PostPosted: Fri Aug 26, 2011 7:58 am    Post subject: Reply with quote

Hi Marty!
I had a similar solution and what I can see, the puzzle is already solved after your third move!
/SudoQ
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Marty R.



Joined: 12 Feb 2006
Posts: 5064
Location: Rochester, NY, USA

PostPosted: Fri Aug 26, 2011 3:43 pm    Post subject: Reply with quote

SudoQ wrote:
Hi Marty!
I had a similar solution and what I can see, the puzzle is already solved after your third move!
/SudoQ

I must've missed something. I tried it again on Draw/Play and this is my grid after the first three moves and I'm stuck.

Code:

+----------+---------------+------------+
| 6  8   3 | 15  2    9    | 7   15  4  |
| 9  7   1 | 358 4    38   | 58  6   2  |
| 2  5   4 | 6   178  178  | 9   3   18 |
+----------+---------------+------------+
| 4  136 9 | 2   168  1368 | 356 158 7  |
| 5  136 8 | 7   9    4    | 36  2   16 |
| 7  136 2 | 138 168  5    | 4   18  9  |
+----------+---------------+------------+
| 3  4   7 | 58  568  2    | 1   9   68 |
| 18 9   6 | 4   3    18   | 2   7   5  |
| 18 2   5 | 9   1678 1678 | 68  4   3  |
+----------+---------------+------------+

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SudoQ



Joined: 02 Aug 2011
Posts: 127

PostPosted: Fri Aug 26, 2011 4:19 pm    Post subject: Reply with quote

From your grid I can only see singles, starting with r7c5=5.
And how you can know that r4c7<>8 ?
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Marty R.



Joined: 12 Feb 2006
Posts: 5064
Location: Rochester, NY, USA

PostPosted: Fri Aug 26, 2011 4:41 pm    Post subject: Reply with quote

Right you are. That 5 in r7c5 escaped me, embarrassingly so.

R4c7<>8 because of c8's 8s are locked in box 6.
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