warnsdorff | Finds knight 's tours on square boards

by douglassquirrel Python Version: Current License: No License

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kandi X-RAY | warnsdorff Summary

warnsdorff is a Python library. warnsdorff has no bugs, it has no vulnerabilities and it has low support. However warnsdorff build file is not available. You can download it from GitHub.

Warnsdorff's Rule is a heuristic for finding knight's tours on chessboards. A conjecture by the original contributor of this code and Paul Cull is that Warnsdorff's rule, with suitable modifications, can give a knight's tour on any square board. You can use this program to generate tours according to this method on a square board of any size:. When the tour is "drawn" you see a square coloured blue or red when the knight reaches that square - blue indicates that no tiebreak was necessary, red that a tiebreak was needed (see the research paper cited above for more details). I hope that users of this code are inspired to learn more about Warnsdorff's Rule, and perhaps to prove that the modified rule will actually produce tours on all square boards - this is known for boards whose size is equivalent to 7 mod 8, thanks to Sam Ganzfried's REU paper on the subject.

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warnsdorff has a low active ecosystem.

It has 10 star(s) with 3 fork(s). There are 4 watchers for this library.

It had no major release in the last 6 months.

warnsdorff has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of warnsdorff is current.

Quality

warnsdorff has 0 bugs and 0 code smells.

Security

warnsdorff has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

warnsdorff code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

warnsdorff does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

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warnsdorff releases are not available. You will need to build from source code and install.

warnsdorff has no build file. You will be need to create the build yourself to build the component from source.

Top functions reviewed by kandi - BETA

kandi has reviewed warnsdorff and discovered the below as its top functions. This is intended to give you an instant insight into warnsdorff implemented functionality, and help decide if they suit your requirements.

Draw the next frame
Return the next result
Flip a polynomial
Get the rules for the player
Make tour
Makes a SWF shape

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warnsdorff Key Features

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warnsdorff Examples and Code Snippets

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Community Discussions

Trending Discussions on warnsdorff

Knight's tour in Prolog: Stack limit exceeded

Translating a tabled predicate from b-prolog to gprolog

Solving Knights Tour using Warnsdorff's Rule

Gprolog Knight's Tour using Warnsdorff's Rule

QUESTION

Knight's tour in Prolog: Stack limit exceeded

Asked 2019-Aug-06 at 07:41

After I tried to optimize the program using Warnsdorff's rule, the compiler started issuing Stack limit exceeded. All parts separately seem to work, but I have no idea how this could be optimized. I am writing a program on an old laptop with 32-bit windows, so I can’t increase the size of the stack manually, as it is written on the official website https://www.swi-prolog.org/FAQ/StackSizes.html.

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ANSWER

Answered 2019-Aug-04 at 15:48

The traceback already shows what is wrong: the the_way is called with:

Source https://stackoverflow.com/questions/57347939

QUESTION

Translating a tabled predicate from b-prolog to gprolog

Asked 2018-Aug-03 at 06:42

For fun I've been attempting to write a Knight's Tour (https://en.wikipedia.org/wiki/Knight%27s_tour) solver in gprolog using Warnsdorf's rule.

I found another SO post asking about efficiency that provided a solution in B-prolog: knight's tour efficient solution.

My problem arises with the following section:

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ANSWER

Answered 2017-Apr-25 at 08:58

Probably, tabling is overkill for this problem. Since the Visits lists already is carried on while solving, just use memberchk/2. I get this solution in SWI-Prolog (where, BTW, tabling is implemented, but fails to solve the puzzle using the original coding you linked to):

Source https://stackoverflow.com/questions/43600928

QUESTION

Solving Knights Tour using Warnsdorff's Rule

Asked 2017-Jul-18 at 19:05

I'm currently trying to improve upon a brute force implementation of Knight's Tour by using Warnsdorff's Rule, however I feel as though I'm not understanding the algorithm, as the execution of the script is taking very long. I'm mainly looking for hints to point me in the right direction so that I can figure as much of this out on my own as possible. Thanks!

Here is my code:

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ANSWER

Answered 2017-Jul-18 at 19:05

Optimisation

I would be suspicious of the time spent in:

Source https://stackoverflow.com/questions/45174774

QUESTION

Gprolog Knight's Tour using Warnsdorff's Rule

Asked 2017-Apr-26 at 06:18

I'm trying to implement Warnsdorff's Rule in Gprolog to generate tours on an arbitrary chessboard. I found an SO post providing a good solution in B-prolog, and I simply needed to translate the Warnsdorff step (knight's tour efficient solution).

Below is my implementation of the Warnsdorff step:

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ANSWER

Answered 2017-Apr-26 at 06:18

The full search space is easily recovered:

Source https://stackoverflow.com/questions/43622353

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install warnsdorff

You can download it from GitHub.
You can use warnsdorff like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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