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Puzzle 10/10/21: C XY

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Thu Oct 21, 2010 2:40 am    Post subject: Puzzle 10/10/21: C XY Reply with quote
I've run out of (obvious) single-stepper puzzles. Let me know if the latest crop of puzzles prove unsatisfactory.

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

Play this puzzle online at the Daily Sudoku site
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Thu Oct 21, 2010 8:28 am    Post subject: Reply with quote
Two steps ...
Quote:
kite(2) r7, c7 ; r2c6<>2
w-wing-like(18) "pseudocell" ; (8=5)r6c4-(5=1)r4c5 - r4c6=r2c6 - (1=8)r2c7 ; r6c7<>8
.. and not unsatisfactory!
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Thu Oct 21, 2010 1:28 pm    Post subject: Reply with quote
Similar to Peter's moves........

Quote:
kite 2 box9; r2c6<>2
flightless w-wing (16)r2c6|r5c2 GSL (6)r125c4 plus transport: (1)r5c2-r5c9=(1)r6c7; r2c7<>1

Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Thu Oct 21, 2010 10:13 pm    Post subject: Reply with quote
Not similar.

Hidden UR (56); r1c2<>6, r1c6<>5
M-Wing (35); r8c9<>3
BUG+1
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Fri Oct 22, 2010 4:37 pm    Post subject: Reply with quote
Marty R. wrote:
Not similar.

Hidden UR (56); r1c2<>6, r1c6<>5
M-Wing (35); r8c9<>3
BUG+1

This is the second time this week that I posted a solution to the wrong puzzle. The above is for 10-20 C, not 10-21 C.
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Fri Oct 22, 2010 4:40 pm    Post subject: Reply with quote
This is really for 10-21 C.

Coloring, r2c7<>2
XY-Wing (561), flightless with pincer transport
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