dailysudoku.com Forum Index dailysudoku.com
Discussion of Daily Sudoku puzzles
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Vanhegan extreme October 16, 2012

 
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Other puzzles
View previous topic :: View next topic  
Author Message
arkietech



Joined: 31 Jul 2008
Posts: 1709
Location: Northwest Arkansas USA

PostPosted: Tue Oct 16, 2012 5:41 am    Post subject: Vanhegan extreme October 16, 2012 Reply with quote

Code:

 *-----------*
 |1.9|...|.68|
 |4.5|1..|...|
 |..3|.9.|451|
 |---+---+---|
 |...|2.5|.7.|
 |..7|...|5..|
 |.5.|9.3|...|
 |---+---+---|
 |714|.2.|6..|
 |...|..8|1.9|
 |39.|...|2.7|
 *-----------*
 

Play/Print this puzzle online
Back to top
View user's profile Send private message
tlanglet



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

PostPosted: Tue Oct 16, 2012 1:13 pm    Post subject: Reply with quote

Code after basics:
Code:
*-----------------------------------------------------------*
 | 1     27    9     | 45    35    247   | 37    6     8     |
 | 4     678   5     | 1     368   67    | 379   29    23    |
 | 26    2678  3     | 68    9     267   | 4     5     1     |
 |-------------------+-------------------+-------------------|
 | 89    4     1     | 2     68    5     | 39    7     36    |
 | 89    3     7     | 468   168   146   | 5     29    26    |
 | 26    5     26    | 9     7     3     | 8     1     4     |
 |-------------------+-------------------+-------------------|
 | 7     1     4     | 3     2     9     | 6     8     5     |
 | 5     26    26    | 7     4     8     | 1     3     9     |
 | 3     9     8     | 56    156   16    | 2     4     7     |
 *-----------------------------------------------------------*

Two step version:
ANP(67=2)r23c6-r1c6=r1c2-(2=6)r3c1 => -6r3c4
(8=6)r4c5-r5c4=r9c4-(6=1)r9c6-r5c6=1r5c5 => -8r5c5

I originally spotted this as an Almost AIC where either 6r3c4 or 6r9c4 if 6r4c5.
If 6r9c4 then AIC: (8=6)r4c5-r5c4=r9c4-(6=1)r9c6-r5c6=1r5c5 => -8r5c5
If 6r3c4 then Almost Element: 6r3c4-(67=2)r23c6-r1c6=r1c2-(2=6)r3c1 Conflict => -6r3c4
Thus the AIC is valid to complete the puzzle.

One step version:
[6r3c4-(67=2)r23c6-r1c6=r1c2-(2c6)r3c1 Conflict => -6r3c4] = [(8=6)r4c5-r5c4=r9c4-(6=1)r9c6-r5c6=1r5c5 => -8r5c5] => -8r5c5

Ted
Back to top
View user's profile Send private message
arkietech



Joined: 31 Jul 2008
Posts: 1709
Location: Northwest Arkansas USA

PostPosted: Tue Oct 16, 2012 2:51 pm    Post subject: Reply with quote

Code:

 *-----------------------------------------------------------*
 | 1     27    9     |b45    35   c247   | 37    6     8     |
 | 4     678   5     | 1     368  c67    | 379   29    23    |
 | 26    2678  3     | 8-6   9    c267   | 4     5     1     |
 |-------------------+-------------------+-------------------|
 | 89    4     1     | 2     68    5     | 39    7     36    |
 | 89    3     7     | 468   168   146   | 5     29    26    |
 | 26    5     26    | 9     7     3     | 8     1     4     |
 |-------------------+-------------------+-------------------|
 | 7     1     4     | 3     2     9     | 6     8     5     |
 | 5     26    26    | 7     4     8     | 1     3     9     |
 | 3     9     8     |a56    156   1-6   | 2     4     7     |
 *-----------------------------------------------------------*
als xy-wing
(6=5)r9c4-(5=4)r1c4-(4=276)ant:r123c6 => -6r9c6;r3c4; stte


Play/Print this puzzle online
Back to top
View user's profile Send private message
tlanglet



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

PostPosted: Tue Oct 16, 2012 3:05 pm    Post subject: Reply with quote

arkietech wrote:
Code:

 *-----------------------------------------------------------*
 | 1     27    9     |b45    35   c247   | 37    6     8     |
 | 4     678   5     | 1     368  c67    | 379   29    23    |
 | 26    2678  3     | 8-6   9    c267   | 4     5     1     |
 |-------------------+-------------------+-------------------|
 | 89    4     1     | 2     68    5     | 39    7     36    |
 | 89    3     7     | 468   168   146   | 5     29    26    |
 | 26    5     26    | 9     7     3     | 8     1     4     |
 |-------------------+-------------------+-------------------|
 | 7     1     4     | 3     2     9     | 6     8     5     |
 | 5     26    26    | 7     4     8     | 1     3     9     |
 | 3     9     8     |a56    156   1-6   | 2     4     7     |
 *-----------------------------------------------------------*
als xy-wing
(6=5)r9c4-(5=4)r1c4-(4=276)ant:r123c6 => -6r9c6;r3c4; stte


Play/Print this puzzle online


Very nice Dan Exclamation
Back to top
View user's profile Send private message
Marty R.



Joined: 12 Feb 2006
Posts: 5128
Location: Rochester, NY, USA

PostPosted: Tue Oct 16, 2012 7:24 pm    Post subject: Reply with quote

I couldn't find the Holy Grail, aka one-stepper, so I used an XYZ-Wing, potential DP, M-Wing and BUG+2.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Other puzzles All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group