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Puzzle 10/04/30 (H) Advanced

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Fri Apr 30, 2010 8:27 am    Post subject: Puzzle 10/04/30 (H) Advanced Reply with quote
Code:
 +-----------------------+
 | . 5 . | . . . | . 7 . |
 | 7 6 . | 8 . . | 1 . . |
 | . . 1 | . . . | 6 8 5 |
 |-------+-------+-------|
 | . 1 . | 4 . . | . . . |
 | . . . | . 6 . | . 2 . |
 | . . . | . . 8 | 5 1 . |
 |-------+-------+-------|
 | . 2 8 | . . 4 | 7 5 . |
 | 1 . 9 | . 8 5 | 4 6 2 |
 | . . 5 | . . . | . 9 . |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site
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Mogulmeister



Joined: 03 May 2007
Posts: 1151
PostPosted: Sat May 01, 2010 6:04 am    Post subject: Reply with quote
Quote:

Two steps for me:
1. xy chain on 9s pincers at r1c3 and r6c2 and so r3c2 r6c1 <>9
2. xy-wing <347> vertex at r3c2 thus r9c6<>7
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Sat May 01, 2010 8:24 am    Post subject: Reply with quote
It did look chainy but I followed the obvious x-wing which also needed two steps...

Quote:
x-wing(2) r36c14
m-wing(37) (7=3)r3c6-r3c2=(3-7)r8c2=r8c4; r3c4<>7, r9c6<>7
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wapati



Joined: 10 Jun 2008
Posts: 472
Location: Brampton, Ontario, Canada.
PostPosted: Sat May 01, 2010 6:59 pm    Post subject: Reply with quote
I thought advanced required chains beyond 3, this is pretty easy.
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Sat May 01, 2010 7:38 pm    Post subject: Reply with quote
XY/Advanced: gM-Wing, W-Wing, XY-Chain, BUG+2, BUG+3, and URs above 1/2/4
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Sat May 01, 2010 8:19 pm    Post subject: Reply with quote
Well it's 'advanced' for me and I appreciate the effort in posting them! Smile
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wapati



Joined: 10 Jun 2008
Posts: 472
Location: Brampton, Ontario, Canada.
PostPosted: Sat May 01, 2010 8:21 pm    Post subject: Reply with quote
daj95376 wrote:
XY/Advanced: gM-Wing, W-Wing, XY-Chain, BUG+2, BUG+3, and URs above 1/2/4


X-wing on 2s, w-wing on 37.

Simple.

Ah, simple to us. W-wing may be advanced to most newspaper solvers.
Got it, thanks.
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Sat May 01, 2010 8:58 pm    Post subject: Reply with quote
Wapati, perhaps you should reflect that we probably all started off as 'newspaper solvers'
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wapati



Joined: 10 Jun 2008
Posts: 472
Location: Brampton, Ontario, Canada.
PostPosted: Sun May 02, 2010 12:45 am    Post subject: Reply with quote
peterj wrote:
Wapati, perhaps you should reflect that we probably all started off as 'newspaper solvers'


Good point, stay there, if you wish.
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