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 

Mar 1 VH

 
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Daily Sudoku puzzles
View previous topic :: View next topic  
Author Message
Earl



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

PostPosted: Thu Mar 01, 2018 3:30 pm    Post subject: Mar 1 VH Reply with quote

Maybe it was too easy with just an Xwing on 3 in C2,9.

Early Earl
Back to top
View user's profile Send private message Send e-mail
Marty R.



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

PostPosted: Thu Mar 01, 2018 8:18 pm    Post subject: Reply with quote

Code:
┌────────────────────┬────────────────────┬────────────────────┐
│    6    128     18 │    7      3      9 │    4      5     28 │
│                    │                    │                    │
│  358    238      7 │   58      4      1 │  389      6   2389 │
│                    │                    │                    │
│    9      4    358 │   58      2      6 │    1     38      7 │
├────────────────────┼────────────────────┼────────────────────┤
│    4     18   1568 │   69     17      3 │   57      2     89 │
│                    │                    │                    │
│    2      7     36 │   69      8      5 │   39      4      1 │
│                    │                    │                    │
│  358      9   1358 │    4     17      2 │   57     38      6 │
├────────────────────┼────────────────────┼────────────────────┤
│    1      6      4 │    3      9      8 │    2      7      5 │
│                    │                    │                    │
│    7     38      9 │    2      5      4 │    6      1     38 │
│                    │                    │                    │
│   38      5      2 │    1      6      7 │   38      9      4 │
└────────────────────┴────────────────────┴────────────────────┘


Simple coloring (3)

3r2c9=r8c9-r9c7=r9c1=> -3r2c1 (same elimination as the X-Wing)
Back to top
View user's profile Send private message
dongrave



Joined: 06 Mar 2014
Posts: 568

PostPosted: Fri Mar 02, 2018 1:06 am    Post subject: Reply with quote

Oh, now Marty's being just downright silly! Anyone on earth would see the 39-8 XY Wing (or the 89-3 XY Wing ) LONG before they'd look at some silly coloring solution! Come on Marty! Don't be silly! You must have too much free time on your hands to avoid finding the obvious - even after you've found it! (The next thing you'll know Keith has evolved to making pencil marks!!)
Back to top
View user's profile Send private message
Marty R.



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

PostPosted: Fri Mar 02, 2018 2:39 am    Post subject: Reply with quote

I don't think Keith will sink as low as pencil marks. I posted yesterday that I'm trying to avoid the X, XY and XYZ wings. I've been here for 12 years and much of that time has been spent learning techniques which I like to use from time to time.
Back to top
View user's profile Send private message
keith



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

PostPosted: Fri Mar 02, 2018 3:21 am    Post subject: Reply with quote

No, but if I know a puzzle only requires a restricted set of techniques, I will look for those.

And yes, I still only use pencil marks for what I find to be x-hard puzzles. Pencil marks are a last resort for me.

I am not being grand. It's just that I find pencil marks to be a distraction from visualizing the patterns in a puzzle.

Keith
Back to top
View user's profile Send private message
dongrave



Joined: 06 Mar 2014
Posts: 568

PostPosted: Fri Mar 02, 2018 9:41 pm    Post subject: Reply with quote

Oh! Now that makes perfect sense Marty! Now I understand. Hey Keith! It's nice to hear from you too!
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Daily Sudoku 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