Author |
Message |
Topic: July 2 Monster VH |
Glassman
Replies: 2
Views: 57273
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Forum: Daily Sudoku Monster puzzles Posted: Tue Jul 15, 2008 8:06 am Subject: July 2 Monster VH |
Steve — Thanks. I thought I had eliminated all possiblilities of pairs, so was moving up the echelons of complexity!
Moderation team — My profuse apologies. Unnecessarily taking up the time of ... |
Topic: July 2 Monster VH |
Glassman
Replies: 2
Views: 57273
|
Forum: Daily Sudoku Monster puzzles Posted: Mon Jul 14, 2008 5:20 am Subject: July 2 Monster VH |
Help please. I am completely stuck. This is as far as I've managed to get:-
+---------------------------------------+
| . . . . | . . . . | . . . . | . . . . |
| . . . . | . . . . | . . . . | ... |
Topic: Do the June 4 Very Hard at the previous weekend! |
Glassman
Replies: 25
Views: 85508
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Forum: Daily Sudoku puzzles Posted: Wed Jun 18, 2008 1:42 pm Subject: Do the June 4 Very Hard at the previous weekend! |
... There is an incredibly obvious skyscraper ... Which opens up a (29, 26, 69) XY-wing in C1 R7, taking out <9> in R3C7.
I read this topic with some disbelief — they do like complicated meth ... |
Topic: April 18 VH - Wing It |
Glassman
Replies: 15
Views: 48279
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Forum: Daily Sudoku puzzles Posted: Sat Apr 26, 2008 10:18 pm Subject: April 18 VH - Wing It |
What you all seem to have missed is the jellyfish (order 4 x-wing) on 7s — not that it solves the puzzle more quickly, but that it is such a rarity in order 9 puzzles. It is the first order 9 jellyf ... |
Topic: Printing a puzzle extra large — help please |
Glassman
Replies: 1
Views: 46820
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Forum: Site help Posted: Thu Feb 14, 2008 7:30 pm Subject: Printing a puzzle extra large — help please |
I have a neighbour who has defective vision, who would like an extra large printout of Sudoku puzzles. How do I print one on two, or even four sheets of A4 paper? I don't mind margins, just so lon ... |
Topic: Jan 28 VH |
Glassman
Replies: 29
Views: 93832
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Forum: Daily Sudoku puzzles Posted: Thu Feb 14, 2008 1:05 pm Subject: Jan 28 VH |
The "triple x-wing" is called swordfish. Its not very popular here, because its hard to spot ...
ravel — so that's what a swordfish is!!! Thanks for confirming that it's a legitimate te ... |
Topic: Jan 28 VH |
Glassman
Replies: 29
Views: 93832
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Forum: Daily Sudoku puzzles Posted: Thu Feb 14, 2008 10:25 am Subject: Re: Jan 28 VH |
This may be the toughest "Very Hard" puzzle ever! ...
Although I am not 100% sure that this technique is valid, I have used it several times successfully and can't find anything wrong wit ... |
Topic: Sept 26 VH |
Glassman
Replies: 2
Views: 20963
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Forum: Daily Sudoku puzzles Posted: Wed Oct 10, 2007 9:27 am Subject: Sept 26 VH |
Solved it. I was too close to it and needed to move back a little!
Glassman ![Cool](images/smiles/icon_cool.gif) |
Topic: Sept 26 VH |
Glassman
Replies: 2
Views: 20963
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Forum: Daily Sudoku puzzles Posted: Wed Oct 10, 2007 8:31 am Subject: Sept 26 VH |
Help, I'm stuck
This is all I've managed, and that was after an unhelpful x-wing on 2s in c4 c7 eliminated the 2 at r5c5:-
+-----------------+----------------+-------------+
| 1235679 8 ... |
Topic: sept 19 |
Glassman
Replies: 26
Views: 94147
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Forum: Daily Sudoku puzzles Posted: Tue Oct 02, 2007 7:40 am Subject: sept 19 |
Marty — Grateful thanks for your explanation of a technique new to me, but not needed here, as I solved this 19 Sept 2007 puzzle using the xy-wing on pivot r9c6 and the skyscraper on 2s (a lovely and ... |
Topic: Sept 1 VH |
Glassman
Replies: 9
Views: 45613
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Forum: Daily Sudoku puzzles Posted: Tue Sep 18, 2007 9:22 am Subject: Re: Sept 1 VH |
I got as far as Johan's step at the start of this topic, and then noticed a very obvious x-wing on 8s in rows 1 and 8, which simplified the puzzle considerably, and placed the 8 in box 3:-
+----- ... |
Topic: Aug 30 VH |
Glassman
Replies: 13
Views: 49136
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Forum: Daily Sudoku puzzles Posted: Fri Sep 07, 2007 5:46 am Subject: Aug 30 VH |
Unless I made a lucky error somewhere, I was able to finish with nothing more complex than a simple skyscraper on 8's (C59) which took out the 8 in R4C7.
cgordon — Thanks for introducing me to skyscr ... |
Topic: Recommendation for non-UR sticklers - 22-Aug-07 VH monster |
Glassman
Replies: 0
Views: 13498
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Forum: Daily Sudoku puzzles Posted: Fri Aug 24, 2007 4:14 am Subject: Recommendation for non-UR sticklers - 22-Aug-07 VH monster |
This 12x12 is a real beauty. I found it very tough without any pencil marks or other memory aids, but managed it in the end. It had me purring with contentment on several occasions. I think the ... |
Topic: 7/16 VH - help! |
Glassman
Replies: 24
Views: 81394
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Forum: Daily Sudoku puzzles Posted: Sat Aug 11, 2007 2:46 am Subject: 7/16 VH - help! |
Tracy — Thanks, I've found it.
Glassman ![Cool](images/smiles/icon_cool.gif) |
Topic: July 8 |
Glassman
Replies: 3
Views: 22430
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Forum: Daily Sudoku puzzles Posted: Sat Aug 11, 2007 2:09 am Subject: July 8 |
... There is an XY-Wing with pivot R1C6 that removes <4> from R6C9, leading immediately to <3> at R4C1. ...
Asellus — Thanks for that. I had done a little more housekeeping with a cou ... |
Topic: 7/16 VH - help! |
Glassman
Replies: 24
Views: 81394
|
Forum: Daily Sudoku puzzles Posted: Sat Aug 11, 2007 1:40 am Subject: 7/16 VH - help! |
I'm completely stuck on this — I haven't even got as far as Captain Pete. How did he do the eliminations in c7?
This is my feeble effort. Enlightenment please!
+--------------+------------ ... |
Topic: June 19 2007 VH |
Glassman
Replies: 15
Views: 59313
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Forum: Daily Sudoku puzzles Posted: Tue Jun 19, 2007 11:55 am Subject: June 19 2007 VH |
Having trouble with this. I solved it and proved uniqueness by starting at the derived end of the only non-trivial pair on the grid. Whichever way around I started this pair, the cell in between c ... |
Topic: Proper name for a solving technique, please. |
Glassman
Replies: 2
Views: 31274
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Forum: General discussion Posted: Tue Jun 12, 2007 8:15 am Subject: Proper name for a solving technique, please. |
Steve — Thanks. I found this in a most unexpected source, last week's Radio Times. Most are easy, but every now and again the RT includes a gem that makes your head hurt!
This xy-ring just leap ... |
Topic: Proper name for a solving technique, please. |
Glassman
Replies: 2
Views: 31274
|
Forum: General discussion Posted: Mon Jun 11, 2007 5:28 am Subject: Proper name for a solving technique, please. |
If you have corners of a rectangle with candidates (ab), (bc), (cd), and (da), there are only two possible solutions. These will eliminate all other b's on side 1, c's on side 2, d's on side 3, and ... |
Topic: Stuart puzzle May 25 diabolical — spoiler warning |
Glassman
Replies: 6
Views: 25863
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Forum: Other puzzles Posted: Sun May 27, 2007 11:33 pm Subject: Stuart puzzle May 25 diabolical — spoiler warning |
Keith — I got side-tracked when I realised that your xy-wing eliminated the 1s at r2c1 and r2c3. That 57 was too tempting a prize not to be of use.
Mogulmeister — I prefer yours as a simple xy-w ... |
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