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Eureka 2532 June 15 diabolical

 
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arkietech



Joined: 31 Jul 2008
Posts: 1728
Location: Northwest Arkansas USA

PostPosted: Sat Jun 16, 2012 5:31 am    Post subject: Eureka 2532 June 15 diabolical Reply with quote

Code:

 *-----------*
 |..6|74.|9..|
 |.1.|...|...|
 |...|25.|...|
 |---+---+---|
 |.5.|.9.|.4.|
 |829|...|71.|
 |.7.|.6.|.3.|
 |---+---+---|
 |4..|.15|...|
 |...|...|.6.|
 |..8|.73|1..|
 *-----------*
 

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tlanglet



Joined: 17 Oct 2007
Posts: 2461
Location: Northern California Foothills

PostPosted: Sat Jun 16, 2012 2:01 pm    Post subject: Reply with quote

Code after basics:
Code:
 *--------------------------------------------------*
 | 23   8    6    | 7    4    1    | 9    5    23   |
 | 29   1    5    | 3    8    69   | 246  27   247  |
 | 39   4    7    | 2    5    69   | 36   8    1    |
 |----------------+----------------+----------------|
 | 6    5    3    | 1    9    7    | 28   4    28   |
 | 8    2    9    | 5    3    4    | 7    1    6    |
 | 1    7    4    | 8    6    2    | 5    3    9    |
 |----------------+----------------+----------------|
 | 4    369  2    | 69   1    5    | 38   79   378  |
 | 7    39   1    | 49   2    8    | 34   6    5    |
 | 5    69   8    | 469  7    3    | 1    29   24   |
 *--------------------------------------------------*

(3)r8c7=(3)r7c79-AUR(69)r7924[(3)r7c2=(4)r9c4]-(4=2)r9c9-r12c9=r2c78-(2=9)r2c1-(9=3)r3c1; r3c7<>3

BUG+3; r2c7<>2
(2)r2c9;
||
(9)r7c2-(9=7)r7c8-(7=2)r2c8;
||
(9)r9c4-(9=4)r8c4-(4=3=8=2)r874c7;

A one step solution is an almost xy-wing
axy-wing(23-7)r1c9+r2c8|r7c9=(8)r7c9-(8=2)r4c9-r9c9=(2-9)r9c8=(9)r7c8; r7c8<>7

Ted


Last edited by tlanglet on Sat Jun 16, 2012 2:12 pm; edited 1 time in total
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arkietech



Joined: 31 Jul 2008
Posts: 1728
Location: Northwest Arkansas USA

PostPosted: Sat Jun 16, 2012 2:07 pm    Post subject: Reply with quote

Code:
 
 *--------------------------------------------------*
 | 23   8    6    | 7    4    1    | 9    5    23   |
 | 29   1    5    | 3    8    69   | 246 c27  d27-4 |
 | 39   4    7    | 2    5    69   | 36   8    1    |
 |----------------+----------------+----------------|
 | 6    5    3    | 1    9    7    | 28   4    28   |
 | 8    2    9    | 5    3    4    | 7    1    6    |
 | 1    7    4    | 8    6    2    | 5    3    9    |
 |----------------+----------------+----------------|
 | 4    369  2    | 69   1    5    | 38   79   378  |
 | 7    39   1    | 49   2    8    | 34   6    5    |
 | 5    69   8    | 469  7    3    | 1   b29  a24   |
 *--------------------------------------------------*
h3-wing
(4=2)r9c9-r9c8=(2-7)r2c8=7r2c9 => -4r2c9; stte


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daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Sat Jun 16, 2012 9:45 pm    Post subject: Reply with quote

A multi-step alternative.

Code:
 <24+3>  XY-Wing  r9c9/r1c9+r8c7         <> 3    r3c7,r7c9

 r79c24  <69> UR Type 6.2233             <> 9    r7c4,r9c2

         BUG+1                           =  2    r2c9
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Marty R.



Joined: 12 Feb 2006
Posts: 5166
Location: Rochester, NY, USA

PostPosted: Sun Jun 17, 2012 4:27 am    Post subject: Reply with quote

Same three moves as Danny.
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