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Aug 18 VH

 
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Mike S



Joined: 15 May 2009
Posts: 6

PostPosted: Tue Aug 18, 2009 6:36 am    Post subject: Aug 18 VH Reply with quote

After the Basics:

Code:

+---------+-----------+------------+
| 2  6 9  | 4   8   3 | 5   7   1  |
| 4  1 5  | 6   7   9 | 38  23  28 |
| 3  7 8  | 25  25  1 | 6   4   9  |
+---------+-----------+------------+
| 6  8 3  | 7   9   5 | 14  12  24 |
| 5  9 2  | 1   3   4 | 7   8   6  |
| 7  4 1  | 8   6   2 | 9   5   3  |
+---------+-----------+------------+
| 1  2 46 | 359 45  8 | 34  369 7  |
| 89 3 46 | 29  124 7 | 148 169 5  |
| 89 5 7  | 39  14  6 | 2   139 48 |
+---------+-----------+------------+


Solution: 348 XY-Wing
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iiggoorr



Joined: 06 Aug 2009
Posts: 4

PostPosted: Tue Aug 18, 2009 7:36 am    Post subject: Reply with quote

Since you sad after the basics, I am just wondering did I miss something...
Is there "easy" method to get 1 in r1c9.
What i mean is I had to use Swordfish patern but with 4 rows (r1, r4,r8,r9)
to get that 1 in r1c9. So I am wondering is there easier method to get it?
After that and the rest of the basics that come out of that 1 in r1c9, mentioned XY wing realy doeas it...
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Mike S



Joined: 15 May 2009
Posts: 6

PostPosted: Tue Aug 18, 2009 8:08 am    Post subject: Reply with quote

At this Point:

Code:

+---------------+----------------+-------------+
| 28   6   9    | 4   128    3   | 5   7   128 |
| 2478 147 1458 | 6   125789 189 | 138 123 128 |
| 3    17  158  | 257 12578  18  | 6   4   9   |
+---------------+----------------+-------------+
| 6    8   3    | 79  79     5   | 14  12  124 |
| 5    9   2    | 1   3      4   | 7   8   6   |
| 47   147 14   | 8   6      2   | 9   5   3   |
+---------------+----------------+-------------+
| 1    2   468  | 359 4589   89  | 348 369 7   |
| 489  3   468  | 29  12489  7   | 148 169 5   |
| 489  5   7    | 39  1489   6   | 2   139 148 |
+---------------+----------------+-------------+


there are two 1's in block 8. All the other 1's in c5 can be removed.
This leaves a lone 1 in r1.
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iiggoorr



Joined: 06 Aug 2009
Posts: 4

PostPosted: Tue Aug 18, 2009 8:10 am    Post subject: Reply with quote

Thank you very much, that is the the thing i missed, and it realy is basic...
But there is always the hard way of doing simple things Smile
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Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS

PostPosted: Tue Aug 18, 2009 11:16 am    Post subject: aug 18 vh Reply with quote

The old reliable.

Solution 348 xy-wing

Earl
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LloydB



Joined: 09 Jul 2007
Posts: 21
Location: Skagit Co., WA USA

PostPosted: Tue Aug 18, 2009 4:03 pm    Post subject: Reply with quote

The 148 XYZ wing with pivot in R8C7 will also solve it.
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