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  Topic: MOTT-lite
Victor

Replies: 32
Views: 37954

PostForum: Other puzzles   Posted: Sun May 11, 2008 10:34 pm   Subject: MOTT-lite
Asellus: I'm not sure what nice idea it is I am accused of dissolving.
When I read Keith's stuff about M-wings etc., I understood it all apart from half-M-wings. (In fact at first I guessed that it m ...
  Topic: MOTT-lite
Victor

Replies: 32
Views: 37954

PostForum: Other puzzles   Posted: Sat May 10, 2008 9:53 pm   Subject: MOTT-lite
Thanks Asellus. I do get all that, tho' I'll confess to a little disappointment (not your fault of course) at the apparent dissolving of what seems a nice idea. Have a look at another 'half-M-wing' i ...
  Topic: May 10 DB
Victor

Replies: 3
Views: 6165

PostForum: Other puzzles   Posted: Sat May 10, 2008 4:40 pm   Subject: May 10 DB
Guess you two have said it all!
  Topic: MOTT-lite
Victor

Replies: 32
Views: 37954

PostForum: Other puzzles   Posted: Sat May 10, 2008 11:18 am   Subject: MOTT-lite
Victor wrote:
Sorry, Keith, but I think that particular example is not the best you could have for a half-M-wing, ...


Sorry again, Keith! I think it probably is an OK example. It's just that I ...
  Topic: LA Times / Freep - May 9, 2008
Victor

Replies: 3
Views: 6705

PostForum: Other puzzles   Posted: Sat May 10, 2008 10:49 am   Subject: LA Times / Freep - May 9, 2008
'Basics' solve most cells. To finish there are probably lots of ways. I used remote pairs of 57s.
  Topic: 5/10/08 VH
Victor

Replies: 16
Views: 23462

PostForum: Daily Sudoku puzzles   Posted: Sat May 10, 2008 9:50 am   Subject: 5/10/08 VH
Here's another way to look at Norm's 78s. It's a 3-step colouring chain in 8s from one #78 to the other via the 58s. So one of them must be 8 and the other must be 7. So they behave exactly like 'r ...
  Topic: MOTT-lite
Victor

Replies: 32
Views: 37954

PostForum: Other puzzles   Posted: Sat May 10, 2008 8:34 am   Subject: MOTT-lite
I realised, after I'd written, what was going on. Sorry, Keith, but I think that particular example is not the best you could have for a half-M-wing, the reason being that you can, as I explained, se ...
  Topic: daily telegraph 5/9
Victor

Replies: 3
Views: 6261

PostForum: Other puzzles   Posted: Fri May 09, 2008 8:20 pm   Subject: daily telegraph 5/9
Looked hopefully at the identical pairs. I think all three 89s are what Keith calls 'complementary' - all 8s or all 9s. And the 28s are all related. But I couldn't see anything useful to do with thi ...
  Topic: Help, Please, With Solution Technique for a Difficult Puzzle
Victor

Replies: 4
Views: 8169

PostForum: Other puzzles   Posted: Fri May 09, 2008 3:13 pm   Subject: Help, Please, With Solution Technique for a Difficult Puzzle
Paladin, thanks for the thanks! Maybe worth reading Nataraj's comments in http://www.dailysudoku.com/sudoku/forums/viewtopic.php?t=2527&sid=f0d5432b811e95d057aa15ae00c0fa21

I'll repeat more or ...
  Topic: MOTT-lite
Victor

Replies: 32
Views: 37954

PostForum: Other puzzles   Posted: Fri May 09, 2008 2:15 pm   Subject: MOTT-lite
Thanks folks. The half-M-wing first. Here's that thread again:
+----------------+----------------+
| 247 34A 8 | 347B 16 29 |
| 6 5 1-37 | 37 18 29 |
| 24 9 13D | 34C ...
  Topic: competition #1034
Victor

Replies: 5
Views: 7765

PostForum: Other puzzles   Posted: Fri May 09, 2008 1:16 pm   Subject: competition #1034
Nice puzzle
+--------------+---------------+--------------+
| 3 4578 457 | 6 9 458 | 478 2 1 |
| 2 4578 6 | 58 1458 1458 | 3 78 9 |
| 148 9 14 | 7 3 2 | 48 6 ...
  Topic: May 8 vh
Victor

Replies: 21
Views: 28715

PostForum: Daily Sudoku puzzles   Posted: Thu May 08, 2008 12:32 pm   Subject: May 8 vh
George: a w-wing 34 in boxes 5 and 6 Yep, or a 45 w-wing in rows 4 & 5.
Or a type 1 UR in r56 in 29s.
Or XY-wing - the one I see is pivoted on r4c1.
Many choices in a fairly straightforward pu ...
  Topic: MOTT-lite
Victor

Replies: 32
Views: 37954

PostForum: Other puzzles   Posted: Thu May 08, 2008 10:51 am   Subject: MOTT-lite
thanks Keith. - echoed.

I think I understand half-M-wings, but I'm not sure. If you're feeling kind, or in didactic mood, I'd be grateful for a brief explanation.
  Topic: For DP experts?
Victor

Replies: 13
Views: 18682

PostForum: Other puzzles   Posted: Thu May 08, 2008 10:48 am   Subject: For DP experts?
Thanks Steve, lucid and concise as ever! I do get that but, since I missed this one, life is such that I may well never see another. (I noted your recent remark that these things are rare.)
  Topic: May 4 - Hard
Victor

Replies: 10
Views: 15726

PostForum: Daily Sudoku puzzles   Posted: Wed May 07, 2008 9:15 pm   Subject: May 4 - Hard
Hi, welcome. Your grid didn't display properly by the way. (I'll leave somebody who's more into that stuff than me to explain why.) Here it is again.
+------------+------------------+------------- ...
  Topic: For DP experts?
Victor

Replies: 13
Views: 18682

PostForum: Other puzzles   Posted: Wed May 07, 2008 7:32 pm   Subject: For DP experts?
OK, I've been doing some homework, looking up some old threads about DPs. Now, I understand the principle behind BUG-lites (which isn't to say that I could find them), such as the two posted by Myth ...
  Topic: MOTT-lite
Victor

Replies: 32
Views: 37954

PostForum: Other puzzles   Posted: Wed May 07, 2008 7:19 pm   Subject: MOTT-lite
Yep, Nataraj, sounds good, except perhaps for:. . . but I think the elimination will still work if the first link is weak and the second link is strong.This kind of stuff needs EVERY link to be conjug ...
  Topic: Help, Please, With Solution Technique for a Difficult Puzzle
Victor

Replies: 4
Views: 8169

PostForum: Other puzzles   Posted: Wed May 07, 2008 4:43 pm   Subject: Help, Please, With Solution Technique for a Difficult Puzzle
Hmm - Sorry, I don't think your colouring is valid. True colouring chains require a conjugate (strong) link each time, but your second move from r8c7 to r8c1 isn't, for there are three 8s in the row. ...
  Topic: For DP experts?
Victor

Replies: 13
Views: 18682

PostForum: Other puzzles   Posted: Wed May 07, 2008 9:14 am   Subject: For DP experts?
Thanks folks, that's all very impressive, and very interesting. Like Norm I'd value a reference or two to MUGs.
  Topic: MOTT-lite
Victor

Replies: 32
Views: 37954

PostForum: Other puzzles   Posted: Wed May 07, 2008 9:02 am   Subject: MOTT-lite
Ravel is one of my gurus, but I think it was Keith who publicised M-wings (tho' maybe that was after Ravel had mentioned the idea - I don't know):
http://www.dailysudoku.com/sudoku/forums/viewtopic.p ...
 
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