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Puzzle 10/09/30: B BBDB Advanced

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Thu Sep 30, 2010 5:05 am    Post subject: Puzzle 10/09/30: B BBDB Advanced Reply with quote
Code:
 +-----------------------+
 | 2 . . | . 1 3 | 9 . 7 |
 | . . 7 | . . 5 | . . . |
 | . 9 6 | 4 2 7 | 5 . 8 |
 |-------+-------+-------|
 | . . 9 | 5 . . | . . 1 |
 | 7 . 8 | . . 9 | . 5 . |
 | 5 3 1 | . 8 6 | . . 9 |
 |-------+-------+-------|
 | 1 . 3 | . . . | 2 . . |
 | . . . | . 9 . | . . . |
 | 9 . 2 | 3 . 1 | . . 5 |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site

This is a test.

Solution wrote:
r18c23 <45> UR Type 1.2225 r8c2<>45

c5b9 Empty Rectangle <> 7 r4c8

<67+4> XY-Wing r7c4/r7c9+r9c5 <> 4 r7c6,r9c78

c16 X-Wing <> 4 r4c2,r8c89
r59 X-Wing <> 4 r47c2

<38+7> XY-Wing r4c8/r4c5+r9c8 <> 7 r9c5
<36+8> XY-Wing r5c7/r4c8+r9c7 <> 8 r4c7,r89c8
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JC Van Hay



Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium
PostPosted: Thu Sep 30, 2010 8:37 pm    Post subject: Reply with quote
Quote:
4-SIS AIC : (34)R2C7 (47)R6C7 7B5 3B5 : (3)r2c7=(3)r5c5 : => r5c7<>3
XY Wing (-467), (67)R7C4 as vertex : r7c6,r9c78<>4
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Fri Oct 01, 2010 11:21 pm    Post subject: Reply with quote
XY-Wing (674) + pincer transport
X-Wing (4)
UR 78 implications; r9c7<>6 due to invalidity
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Sun Oct 03, 2010 12:40 am    Post subject: Reply with quote
Two moves..........

xy-wing -467 vertex r7c4; r7c6,r9c78<>4
Plus transport (4)r9c5-r5c5=(4)r5c2; r7c2<>4

w-wing (36)r5c9|r9c7 SL (3)r2c79; r5c9,r9c7<>6

Ted
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