| View previous topic :: View next topic |
| Author |
Message |
roaa
Joined: 18 Apr 2009
Posts: 112
Location: Sweden
|
 Posted: Fri Nov 20, 2015 9:32 am Post subject: Nov 20 VH |
 |
|
| I needed no advanced technique at all! Am I right? |
|
| Back to top |
|
 |
hughwill
Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
|
| Posted: Fri Nov 20, 2015 10:29 am Post subject: Re: Nov 20 VH |
|
|
| roaa wrote: | | I needed no advanced technique at all! Am I right? |
I got to here with basics: | Code: |
+-------------+------------------+--------------+
| 2 18 4 | 368 136 138 | 7 5 9 |
| 35 7 6 | 358 9 3458 | 1 2 348 |
| 359 18 59 | 2 1345 7 | 6 348 348 |
+-------------+------------------+--------------+
| 589 6 59 | 4 1357 13589 | 2 138 13578 |
| 458 3 7 | 58 2 158 | 9 6 1458 |
| 4589 2 1 | 35789 357 6 | 58 348 34578 |
+-------------+------------------+--------------+
| 67 4 238 | 1 67 23 | 58 9 258 |
| 16 5 23 | 369 8 239 | 4 7 12 |
| 17 9 28 | 57 457 245 | 3 18 6 |
+-------------+------------------+--------------+
|
Play this puzzle online at the Daily Sudoku site
and then needed the 18-2 XY-Wing to polish it off. I can't see any more
basics, but I may be wrong....
Hugh |
|
| Back to top |
|
|
yeoks
Joined: 16 May 2010
Posts: 33
|
| Posted: Fri Nov 20, 2015 12:01 pm Post subject: |
|
|
Hugh,
Take a look at Row 1 again. |
|
| Back to top |
|
|
hughwill
Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
|
| Posted: Fri Nov 20, 2015 4:03 pm Post subject: |
|
|
| yeoks wrote: | Hugh,
Take a look at Row 1 again. |
Entirely correct. The absence of all those 3s makes it a basics only. I wonder
if this happens when there's a box-line interaction and a VH solution (the XY-wing) at
the same time and the software gives the VH solution precendence. I've
noticed that there are few if any wings in non VH puzzles.....
Hugh |
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
