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Puzzle 10/08/23: C

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Mon Aug 23, 2010 3:25 am    Post subject: Puzzle 10/08/23: C Reply with quote
Code:
 +-----------------------+
 | . 4 . | . . . | 5 . . |
 | 6 8 9 | . . . | . . . |
 | . 3 5 | . . . | . 2 8 |
 |-------+-------+-------|
 | . . . | 4 . . | 8 . . |
 | . . . | . 3 . | 1 6 5 |
 | . . . | . . 1 | . 4 2 |
 |-------+-------+-------|
 | 7 . . | 1 8 . | 3 9 . |
 | . . 8 | . 4 7 | 2 5 . |
 | . . 2 | . 9 3 | . . . |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site
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JC Van Hay



Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium
PostPosted: Mon Aug 23, 2010 8:50 am    Post subject: Reply with quote
Quote:
XY Wing Style : 3-SIS : to avoid DP (37)R24C89 : [(1)r2c8,(9)r4c9] (96)R1C9 (61)R1C5 : => r2c5<>1
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Mon Aug 23, 2010 6:32 pm    Post subject: Reply with quote
It is easy to love those potential deadly patterns..............

Quote:
Type 6 UR (37)r24c89[(1)r2c8=(9)r4c9]-(9=6)r1c9-(6=1)r1c5; r1c8,r2c5<>1

Ted
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Mon Aug 23, 2010 6:33 pm    Post subject: Reply with quote
JC Van Hay wrote:
Quote:
XY Wing Style : 3-SIS : to avoid DP (37)R24C89 : [(1)r2c8,(9)r4c9] (96)R1C9 (61)R1C5 : => r2c5<>1


JC,
What can I say other than "Cool" Cool
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Mon Aug 23, 2010 10:25 pm    Post subject: Reply with quote
JC, Ted, very nice move with the ADP!
I played a trusty (but rather long!) xy-chain... for a two step
Quote:
xy-chain (6=9)r3c7 - (9=7)r3c4 - (7=6)r3c5 - (6=1)r1c5 - (1=3)r1c8 - (3=7)r2c9 - (7=6)r9c9 ; r9c7<>6
type 1 UR(37) ; r2c8<>37
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Tue Aug 24, 2010 9:46 pm    Post subject: Reply with quote
Same as Ted. Still don't have a name for it other than a pincer situation from a DP.
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