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puzzle design challenge
Brian
Kwon-Tom Obsessive
Puzzles: 3349
Best Total: 9m 6s
Posted - 2007.04.27 04:36:51
Since there are a few people creating puzzles now, I thought we might have some fun challenging each other to design puzzles. My first idea relates to puzzle #84, where there's a big 6x6 square in the center devoid of clues. I haven't been able to make any bigger than that, but perhaps you can. (Or perhaps you can show why it's impossible.)

So this is my first puzzle design challenge, to create a puzzle with the largest square or rectangle in the middle that's devoid of clues. This is actually trivial in one sense, as the following illustrates:



So we need to add the condition that the loop actually goes through this space. We should also require that the width and height of the rectangle are at least two:



Unfortunately, I'm going to be out of town for a couple of weeks, but I hope some of you will have fun with this and I'll be sure to catch up when I get back.
Tilps
Kwon-Tom Obsessive
Puzzles: 4411
Best Total: 20m 22s
Posted - 2007.04.27 06:36:39
That is a very cool puzzle.

The non-close property of the puzzle has substantially more power to push into empty spaces then I would have guessed.
Jankonyex
Kwon-Tom Obsessive
Puzzles: 3904
Best Total: 9m 35s
Posted - 2007.04.27 14:38:59
Interesting
wall-121 pattern is quite useful

Para
Kwon-Tom Obsessive
Puzzles: 1911
Best Total: 19m 28s
Posted - 2007.06.13 16:11:42
Hi all

Just to show the rules will always stay a bit trivial (and thereby claiming victory ). Here are some patterns that can be stretched as far as you want to; just insert ones. Yes it is bending the rules a little, but the loop travels through the empty rectangle and they are 3 high(so at least 2). So empty rectangles of 3 by infinity.









greetings

Para
Last edited by Para - 2007.06.13 16:14:42
Nis
Kwon-Tom Obsessive
Puzzles: 1989
Best Total: 22m 1s
Posted - 2007.06.13 20:58:35
Quote:
Originally Posted by para
Hi all

Just to show the rules will always stay a bit trivial (and thereby claiming victory ). Here are some patterns that can be stretched as far as you want to; just insert ones. Yes it is bending the rules a little, but the loop travels through the empty rectangle and they are 3 high(so at least 2). So empty rectangles of 3 by infinity.




As far as i can see, this has no solution ...



... and this one has two.
Para
Kwon-Tom Obsessive
Puzzles: 1911
Best Total: 19m 28s
Posted - 2007.06.13 22:04:02
This should work



What is the other solution? Maybe is missed something.



These patterns were just a joke.

Para
Last edited by Para - 2007.06.13 22:11:58
Nis
Kwon-Tom Obsessive
Puzzles: 1989
Best Total: 22m 1s
Posted - 2007.06.14 06:02:16
Sorry, my brain wasn't working. I am to embarrassed to telel you which solutions/problems I saw and did no see
Naivoj
Kwon-Tom Addict
Puzzles: 314
Best Total: 33m 50s
Posted - 2007.12.27 16:49:40
By extending Jankonyex 121 wall design 5x7=35 squares are cleared.


I don't believe it can be stretched further.
Last edited by Naivoj - 2007.12.27 19:23:55
rootbeer
Kwon-Tom Addict
Puzzles: 216
Best Total: 1h 20m 26s
Posted - 2007.12.27 23:41:35
Could you make a larger area if you were allowed one digit in the otherwise-empty rectangle?
Naivoj
Kwon-Tom Addict
Puzzles: 314
Best Total: 33m 50s
Posted - 2007.12.28 06:16:07
Quote:
Originally Posted by rootbeer
Could you make a larger area if you were allowed one digit in the otherwise-empty rectangle?
Yes, but I can only get one more row for 5x8-1=39 squares. Though it is a different problem.

Brian
Kwon-Tom Obsessive
Puzzles: 3349
Best Total: 9m 6s
Posted - 2008.01.02 05:54:58
I liked your puzzle #267, Naivoj. Thanks.
Naivoj
Kwon-Tom Addict
Puzzles: 314
Best Total: 33m 50s
Posted - 2008.01.02 07:15:59
Brian, I am curious to know how you came up with your neat puzzle #84. Did you wrote a specific program that turns up with it, or did you sketch it yourself?
Brian
Kwon-Tom Obsessive
Puzzles: 3349
Best Total: 9m 6s
Posted - 2008.01.03 02:07:40
Quote:
Originally Posted by naivoj
Brian, I am curious to know how you came up with your neat puzzle #84. Did you wrote a specific program that turns up with it, or did you sketch it yourself?
I did that one by hand. All the others have been computer generated. I've never been satisfied with the ones done by hand (except for #84).
Naivoj
Kwon-Tom Addict
Puzzles: 314
Best Total: 33m 50s
Posted - 2008.01.08 04:57:38
Quote:
Originally Posted by brian
I did that one by hand.
The fact you did this by hand is remarkable. Writing a program that come up with this will be impressive too, but not as much in my opinion.

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