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Brian
Kwon-Tom Obsessive
Puzzles: 3265
Best Total: 9m 6s
Posted - 2007.03.21 17:46:08
I finally decided to write my own puzzle solver/generator. Here's a sample "easy" puzzle. I'll post more later, when I get more sophisticated solving algorithms running. My hope is to recognize and develop new solving strategies or patterns, in order to fill in the gap between foilman's "hard" and "very hard" levels, if such a thing can be done.

Brian
Kwon-Tom Obsessive
Puzzles: 3265
Best Total: 9m 6s
Posted - 2007.03.21 18:45:46
Here's a sample "medium" puzzle, although I think it's probably at least a Thursday puzzle. (I also have planned "hard" and "insane" difficulty levels, so don't say I'm not ambitious.) Let me know what you think.


Last edited by Brian - 2007.03.22 04:15:43
Tilps
Kwon-Tom Obsessive
Puzzles: 4320
Best Total: 20m 22s
Posted - 2007.03.21 21:48:44
Is your solver pattern based with some additional simple logic, or no-patterns + complex logic?
Brian
Kwon-Tom Obsessive
Puzzles: 3265
Best Total: 9m 6s
Posted - 2007.03.21 23:11:28
Here are the puzzles in loopy format. Just go to Game -> Specific and paste the string. There's a bug in the newest versions, but I have r6879 and it works fine. (Jankonyex gave a link to r6724 in another thread.)

10x7:a2d323a22332a3h21a3c3b12c121a131b1a21a0b33b1a1a1d
10x7:0f2a211a02b3a22c02b12b1b2e12a22b1c0e22c13b12a

Quote:
Originally Posted by tilps
Is your solver pattern based with some additional simple logic, or no-patterns + complex logic?

I've gone through three different setups, but (to make the story short) what I have now is just simple logic + no patterns. I'll be implementing some complex stuff soon, hopefully.
Last edited by Brian - 2007.03.22 04:16:03
Tilps
Kwon-Tom Obsessive
Puzzles: 4320
Best Total: 20m 22s
Posted - 2007.03.22 00:46:37
I'll see how my solver rates them when I get home then.(My solver doesn't use any patterns, but it does support some more complex logics)
procrastinator
Kwon-Tom Obsessive
Puzzles: 1083
Best Total: 12m 56s
Posted - 2007.03.22 03:01:23
Is this second one ambiguous, or do I need coffee? BTW, what I've shown isn't forced, if I'm right there are even more solutions, but this partial solution shows it best:

Brian
Kwon-Tom Obsessive
Puzzles: 3265
Best Total: 9m 6s
Posted - 2007.03.22 04:14:51
Quote:
Originally Posted by procrastinator
Is this second one ambiguous, or do I need coffee? BTW, what I've shown isn't forced, if I'm right there are even more solutions, but this partial solution shows it best:


You're right. I copied it down wrong! There should be a 1 in row 5, column 9 (above the two 2's). So sorry... Of course now I have it all automated.
Brian
Kwon-Tom Obsessive
Puzzles: 3265
Best Total: 9m 6s
Posted - 2007.03.22 04:26:01
Here are a couple more "medium" puzzles. I copied-pasted (a fool-proof method) so there shouldn't be any mistakes with these.


10x7:a2c33f2f2112c21a31a12c1d31b2122a1a23a2a233c11b2


10x7:a1a3b3a0a3e3c122k3a12a3a21b1d11b31a2a2b0b211b
foilman
Kwon-Tom Admin
Puzzles: 1720
Best Total: 24m 8s
Posted - 2007.03.22 08:10:14
Nice, good idea - I'm looking forward to giving these a go when I get a bit more time! Can your generator create symmetrical puzzles? To me if a puzzle doesn't have some kind of symmetry in it, it doesn't look "right"...
Jankonyex
Kwon-Tom Obsessive
Puzzles: 3815
Best Total: 9m 35s
Posted - 2007.03.22 09:14:41
Great pattern!


@@@@ϡ@@U
@@@@ѡ@@U
@@ϡ@ϢҡϡU
@@@@@U
Ϣϡϡ@ϡ@ϡU
@@Т@@@U
@@ϡ@ϡ@ϡU
áááááá
A+B+C+D=2 (lines or crosses)

The one I've already posted in "logical thinking":
@@ϡ@
@@@
ϡ@ϡ@Ϣҡ
@@
Ϣϡϡ@
@@
@@
A+B+C+D=2 (lines or crosses)
Brian
Kwon-Tom Obsessive
Puzzles: 3265
Best Total: 9m 6s
Posted - 2007.03.24 15:50:08
Quote:
Originally Posted by foilman
Nice, good idea - I'm looking forward to giving these a go when I get a bit more time! Can your generator create symmetrical puzzles? To me if a puzzle doesn't have some kind of symmetry in it, it doesn't look "right"...

Good point. It can, although it would be take longer to generate a "minimal-clue" puzzle.

I think I'm cutting out one difficulty level. Will update more later...
Brian
Kwon-Tom Obsessive
Puzzles: 3265
Best Total: 9m 6s
Posted - 2007.03.24 15:55:12
Quote:
Originally Posted by jankonyex
Great pattern!

Yes, I thought it was nice. And that was the first puzzle it ever generated! Since it doesn't use pattern recognition (right now), that pattern was sort of spontaneous and novel, which is what I was hoping for.
Brian
Kwon-Tom Obsessive
Puzzles: 3265
Best Total: 9m 6s
Posted - 2007.03.31 03:50:33
Here are a couple more, this time rated "hard". Sorry for the lack of symmetry... I'll add that soon.

10x7:b211b2b1b3a121a210a2a2c32f2311b1i2a31b2a2a1a3a22a


10x7:b1b2b2a1b1212a013a1c2b13a1a1a2122a1b0e11c22f22a3c
Jankonyex
Kwon-Tom Obsessive
Puzzles: 3815
Best Total: 9m 35s
Posted - 2007.03.31 06:42:54
Nice! it include advanced counting problem!
Jankonyex
Kwon-Tom Obsessive
Puzzles: 3815
Best Total: 9m 35s
Posted - 2007.03.31 09:29:30
Quote:
Originally Posted by foilman
Nice, good idea - I'm looking forward to giving these a go when I get a bit more time! Can your generator create symmetrical puzzles? To me if a puzzle doesn't have some kind of symmetry in it, it doesn't look "right"...
symmetrical puzzle is really necessary,
otherwise some puzzles would become "too" difficult.
10x7:a1b2a1a1b222a22c2b2a222a21222222d2212c2a22a2b2a1b2122b32a

Last edited by Jankonyex - 2007.03.31 09:30:05
Brian
Kwon-Tom Obsessive
Puzzles: 3265
Best Total: 9m 6s
Posted - 2007.03.31 19:23:47
Quote:
Originally Posted by jankonyex
Nice! it include advanced counting problem!

Very cool .

I changed some things, so those two puzzles have been demoted to "medium" difficulty. Here is another "medium" puzzle, although I think it's hard. I spotted some new (or rare) patterns. Have fun.

10x7:a3b1a2f21c2211c0b1d1c31222a212b12a02b1e2c3b1a
Jankonyex
Kwon-Tom Obsessive
Puzzles: 3815
Best Total: 9m 35s
Posted - 2007.04.01 04:37:03
Quote:
Originally Posted by brian

10x7:a3b1a2f21c2211c0b1d1c31222a212b12a02b1e2c3b1a
solution
really quite difficult...



Last edited by Jankonyex - 2007.04.01 04:38:46
procrastinator
Kwon-Tom Obsessive
Puzzles: 1083
Best Total: 12m 56s
Posted - 2007.04.02 08:34:09
Aha! Your loopy screenshot has finally let me understand some of the things you've been saying, Jankonyex. Virtual 2s, and using the e's and o's on three corners of a square to determine whether the last corner is an entry point to an isolated region. Brilliant, both of them. Do you actually get to use them very often?

My contribution is not nearly as cool as that, I'm afraid. I've managed to use it only once: it turns up often enough, but there are usually easier ways to solve the puzzle.

Brian
Kwon-Tom Obsessive
Puzzles: 3265
Best Total: 9m 6s
Posted - 2007.04.04 02:25:45
Well, if you've felt a little uncomfortable doing these puzzles, I have some good news: symmetry!

10x7:a013221a2f2b1a22b3a3212a1b22b1a3131a2b22a1b1f3a232222a


10x7:b12a22a1a2b1a21a2a20a02b211b1d2b122b13a33a1a12a1b1a2a22a22b


My fear was that adding symmetry would really cut down on the difficulty (at least in how my program generates puzzles), but I think these are fairly challenging. I'm still seeing new patterns and strategies here--do others feel the same way? Or am I lost in my own little world...
Brian
Kwon-Tom Obsessive
Puzzles: 3265
Best Total: 9m 6s
Posted - 2007.04.04 02:36:32
Here's an easier one.

10x7:13a0b02a312c1b1b1c2221a21a2b2a12a1123c2b2b1c213a22b1a10
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