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Thank you Thomas! That explains it. While certainly I could provide you with an algorithm that would determine the true minimum values, it certainly would be an expensive deep tree, such as those used by chess playing programs. What you've implemented is more like an "average" solution and I'm ok with that, since it's better to use the processing time the program has to generate new puzzles...
2009-11-05 12:30:06 UTC by celtichack
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Most likely you're thinking about filling like a human and not like a computer. The computer is very literal about filling and elimination -- it can't think a "move ahead" at all. It is very often the case that what the computer solves by trial-and-error a person will see in a different way. Sudoku geeks have all kinds of silly names for different ways of thinking about these things (xwings...
2009-11-05 09:47:02 UTC by thomas_hinkle
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I have yet to come across an unsolvable puzzle, in Gnome Sudoku. The hardest yet has taken me almost an hour to solve a .97 or something on that order. I do some every day. In fact I find most of them too easy. If you can post the initial layout, I'll confirm or deny it's impossibility.
2009-10-01 03:57:06 UTC by celtichack
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Well the formatting sucks. Here's a very slightly better looking one.
r col
o 123 456 789
w
1 bb7 982 b3b
2 bb3 bbb 5b8
3 62b bbb bbb
4 b1b 42b bb5
5 bbb 8b1 bbb
6 8bb b36 b4b
7 bbb bbb b52
8 7b5 bbb 8bb
9 b8b 645 9bb.
2009-10-01 03:46:44 UTC by celtichack
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There seems to be a bit of a problem with the algorithm that calculates the puzzle statistics.
Here's an example from my latest puzzle.
It states: diff 0.88, moves by elim 0, moves by filling 6, trial and error 4.
the layout is:
r col
o 123 456 789
w
1 bb7 982 b3b
2 bb3 bbb 5b8
3 62b bbb bbb
4 b1b 42b bb5
5 bbb 8b1 bbb
6 8bb b36 b4b
7 bbb bbb b52
8 7b5 bbb 8bb
9...
2009-10-01 03:32:48 UTC by celtichack
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Not without touching the source code.
As designed, you say how many puzzles per page and the program maximizes the size to fit the paper.
Tom
p.s. development of gnome-sudoku has moved to gnome.org.
2009-09-02 02:47:31 UTC by thomas_hinkle
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Excellent game - I'm particularly happy that you included the ability to print multiple puzzles per page.
One question, though: is there any way to adjust the font size or weight of the numbers in the printed puzzles?
Best,
Brian.
2009-08-24 02:30:02 UTC by br1anwarner
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Well, if you put any number in the grid yourself before clicking "fill", then this is not a bug -- "fill" works based on logic, not by looking at the answers, so if you have a mistake and keep clicking "fill", it will bring you up to the point where your mistake leads to an impossibility.
It's very unlikely there is actually an impossible puzzle given the way...
2009-05-07 17:04:41 UTC by thomas_hinkle
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How easy would it be to use the same GUI controls for a KenKen game? Are any developers considering this?.
2009-05-04 10:39:28 UTC by carlmonnig
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Just go to your .sudoku/saved directory (in your home folder) and delete the saved games. That worked for me.
2009-03-17 03:02:54 UTC by drhilding
