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 VH

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



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA

PostPosted: Tue Mar 05, 2013 3:18 pm    Post subject: Vanhegan VH Reply with quote

More interesting than most:
Code:
VH4-807519vh2.1.1.1
+-------+-------+-------+
| 9 . . | . 1 . | . . . |
| . 6 . | 5 4 . | 9 . . |
| . . 3 | . . . | . . . |
+-------+-------+-------+
| . 4 . | 1 2 . | 3 . 6 |
| . 7 . | 6 . 4 | . 9 . |
| 6 . 2 | . 8 9 | . 1 . |
+-------+-------+-------+
| . . . | . . . | 4 . . |
| . . 7 | . 3 5 | . 6 . |
| . . . | . 9 . | . . 2 |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site

Keith
Back to top
View user's profile Send private message
JC Van Hay



Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium

PostPosted: Tue Mar 05, 2013 6:25 pm    Post subject: Reply with quote

#1. 24 Singles; LC(-2r7c6)

Solving the Kite(7R9C5) thanks to its coupling to an X-Chain on 6 in C5:
Code:
+---------------+-----------------+-----------------+
| 9     2  4(5) | 78   1      368 | 568  3478  357  |
| 7     6  8    | 5    4      23  | 9    23    1    |
| 4(5)  1  3    | 9    -7(6)  268 | 568  2478  (57) |
+---------------+-----------------+-----------------+
| 8     4  9    | 1    2      7   | 3    5     6    |
| 3     7  1    | 6    5      4   | 2    9     8    |
| 6     5  2    | 3    8      9   | 7    1     4    |
+---------------+-----------------+-----------------+
| 125   9  (56) | 278  7(6)   168 | 4    378   357  |
| 24    8  7    | 24   3      5   | 1    6     9    |
| 145   3  456  | 478  9      168 | 58   78    2    |
+---------------+-----------------+-----------------+
#2. Chain[4] : 6r3c5=6r7c5-(6=5)r7c3-5r1c3=5r3c1-(5=7)r3c9 :=> -7r3c5; 6 Singles; LC(-8r79c6)

Solving the box B9 ...
Code:
+--------------+-------------+----------------+
| 9     2  45  | 7     1  38 | 6      348  35 |
| 7     6  8   | 5     4  23 | 9      23   1  |
| (45)  1  3   | 9     6  28 | 8(5)   248  7  |
+--------------+-------------+----------------+
| 8     4  9   | 1     2  7  | 3      5    6  |
| 3     7  1   | 6     5  4  | 2      9    8  |
| 6     5  2   | 3     8  9  | 7      1    4  |
+--------------+-------------+----------------+
| 125   9  56  | 28    7  16 | 4      38   35 |
| 2(4)  8  7   | 2(4)  3  5  | 1      6    9  |
| 145   3  456 | (48)  9  16 | -8(5)  7    2  |
+--------------+-------------+----------------+
#3. Chain[4] : 5r9c7=5r3c7-(5=4)r3c1-4r8c1=4r8c4-(4=8)r9c4 :=> -8r9c7; ste
Back to top
View user's profile Send private message
Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Tue Mar 05, 2013 8:55 pm    Post subject: Reply with quote

Code:

+-----------+------------+--------------+
| 9   2 45  | 78  1  368 | 568 3478 357 |
| 7   6 8   | 5   4  23  | 9   23   1   |
| 45  1 3   | 9   67 268 | 568 2478 57  |
+-----------+------------+--------------+
| 8   4 9   | 1   2  7   | 3   5    6   |
| 3   7 1   | 6   5  4   | 2   9    8   |
| 6   5 2   | 3   8  9   | 7   1    4   |
+-----------+------------+--------------+
| 125 9 56  | 278 67 168 | 4   378  357 |
| 24  8 7   | 24  3  5   | 1   6    9   |
| 145 3 456 | 478 9  168 | 58  78   2   |
+-----------+------------+--------------+

Play this puzzle online at the Daily Sudoku site

I'd never done a Vanhegan VH and this was more difficult than I expected.

XY-Chain (7=5)r3c9-r3c1=r1c3-(5=6)r7c3-(6=7)r7c5=>r3c5r7c9<>7

Code:

+-----------+---------+-----------+
| 9   2 45  | 7  1 38 | 6  348 35 |
| 7   6 8   | 5  4 23 | 9  23  1  |
| 45  1 3   | 9  6 28 | 58 248 7  |
+-----------+---------+-----------+
| 8   4 9   | 1  2 7  | 3  5   6  |
| 3   7 1   | 6  5 4  | 2  9   8  |
| 6   5 2   | 3  8 9  | 7  1   4  |
+-----------+---------+-----------+
| 125 9 56  | 28 7 16 | 4  38  35 |
| 24  8 7   | 24 3 5  | 1  6   9  |
| 145 3 456 | 48 9 16 | 58 7   2  |
+-----------+---------+-----------+

Play this puzzle online at the Daily Sudoku site

XY-Chain (8=4)r9c4-(4=2)r8c4-(2=4)r8c1-(4=5)r3c1-(5=8)r3c7=>r9c7<>8
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