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Puzzle 10/03/28 (A)

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854

PostPosted: Sun Mar 28, 2010 7:03 pm    Post subject: Puzzle 10/03/28 (A) Reply with quote

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

Play this puzzle online at the Daily Sudoku site
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK

PostPosted: Sun Mar 28, 2010 7:29 pm    Post subject: Reply with quote

Provided you spot the hidden pair 45 you can one-step it with ..
Quote:
UR Type 1 eliminates 45 from r7c5

You dont event need the X-wing on 2
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

PostPosted: Mon Mar 29, 2010 12:03 am    Post subject: Reply with quote

I found another route to a one stepper:
Quote:
w-wing 12
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Wendy W



Joined: 04 Feb 2008
Posts: 144

PostPosted: Mon Mar 29, 2010 12:15 am    Post subject: Reply with quote

peterj wrote:
Provided you spot the hidden pair 45 you can one-step it with ..
Quote:
UR Type 1 eliminates 45 from r7c5

You dont event need the X-wing on 2

Nice going, Peter! I used an X-wing on 1 and then an XY-wing (126).
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Mon Mar 29, 2010 3:49 pm    Post subject: Reply with quote

Same W-Wing as Dan.
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Mon Mar 29, 2010 7:01 pm    Post subject: Reply with quote

Marty R. wrote:
Same W-Wing as Dan.

Maybe it wasn't the same. I forgot to mention that mine was flightless and used a pincer transport.
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

PostPosted: Mon Mar 29, 2010 8:43 pm    Post subject: Reply with quote

Marty R. wrote:
Maybe it wasn't the same. I forgot to mention that mine was flightless and used a pincer transport.
Here is mine. It flies sans extensions with stte.
Code:
 *-----------------------------------------------------------*
 | 9     68    5     | 7     236   4     |#123   18-2 *12    |
 | 1268  7     126   | 123   2356  15    | 239   89-2  4     |
 | 4     12    3     | 12    9     8     | 5     7     6     |
 |-------------------+-------------------+-------------------|
 | 7     69    16    | 5     8     2     | 4     19    3     |
 | 23    39    8     | 4     1     6     | 29    5     7     |
 | 5     12    4     | 9     7     3     | 8     6     12    |
 |-------------------+-------------------+-------------------|
 | 1236  45    126   | 8     2345  15    | 7    *12    9     |
 | 1238  38    9     | 123   23    7     | 6     4     5     |
 | 12    45    7     | 6     45    9     |#12    3     8     |
 *-----------------------------------------------------------*
 w-wing:(2=1)r1c9-r1c7=r9c7-(1=2)r7c8; r12c8<>2
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Mon Mar 29, 2010 9:31 pm    Post subject: Reply with quote

Sometimes I don't see things that are right in front of me. I used r1c9 and r9c1, then transported the 2 from r9c1 to r7c8.
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

PostPosted: Tue Mar 30, 2010 4:24 am    Post subject: Reply with quote

A different solution is the hidden pair 12 in r1c89; either r1c89=12 or r1c8=8.

(12)r1c89 = (8)r1c8 - (8=6)r1c2 - (6=9)r4c2 - (9=1)r4c8 - r7c8 = r9c7; r1c7<>1 to complete the puzzle in one step.

Ted
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oaxen



Joined: 10 Jul 2006
Posts: 96

PostPosted: Tue Mar 30, 2010 10:46 am    Post subject: Reply with quote

There are 30!! two-of-a- kind boxes where one can start and make a one stepper thread of this puzzle. Only the 45's in r7c2 and r9c2 and r9c5 will lead to a dead end.
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