Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.python > #88235
| Path | csiph.com!usenet.pasdenom.info!news.redatomik.org!newsfeed.xs4all.nl!newsfeed1.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail |
|---|---|
| Return-Path | <vs@it.uu.se> |
| X-Original-To | python-list@python.org |
| Delivered-To | python-list@mail.python.org |
| X-Spam-Status | OK 0.038 |
| X-Spam-Evidence | '*H*': 0.92; '*S*': 0.00; 'patterns': 0.04; 'mathematics': 0.05; 'laura': 0.07; 'strict': 0.07; 'subset': 0.09; 'python': 0.11; 'suggest': 0.14; '(published': 0.16; 'define,': 0.16; 'finds': 0.16; 'header:in-reply-to:1': 0.16; 'heads.': 0.16; 'press,': 0.16; 'wrote:': 0.18; 'solution.': 0.20; 'written': 0.21; '>>>': 0.22; 'to:name:python-list@python.org': 0.22; 'mathematical': 0.24; "world's": 0.24; '---': 0.24; 'solutions.': 0.26; 'am,': 0.29; 'mode': 0.30; 'fast.': 0.31; 'oversight': 0.31; 'another': 0.32; 'problem': 0.35; 'version': 0.36; 'really': 0.36; 'behind': 0.37; 'error.': 0.37; 'jason': 0.38; 'solving': 0.38; 'to:addr:python-list': 0.38; 'does': 0.39; 'though,': 0.39; 'to:addr:python.org': 0.39; 'university': 0.39; 'called': 0.40; 'even': 0.60; 'skip:u 10': 0.60; 'dave': 0.60; 'problems.': 0.60; 'interested,': 0.61; '(that': 0.65; 'finish': 0.65; 'talking': 0.65; 'charset:windows-1252': 0.65; 'wish': 0.70; 'analysis': 0.75; 'trial': 0.83; 'header:mime-version:1': 0.84; 'angel': 0.91; 'hardest': 0.91; 'besides,': 0.93 |
| X-SENDER-IP | [213.112.62.184] |
| X-LISTENER | [smtp.bredband.net] |
| X-IronPort-Anti-Spam-Filtered | true |
| X-IronPort-Anti-Spam-Result | A2C8AQCg9BZVPLg+cNUNT4Q0hkDFAQKBcAEBAQEBAQYBAQEBOIRQAQEEOEARCxgJFg8JAwIBAgExFAYNBgIBAReIGbE6mi4BAQEBAQUBAQEBAR2LKYR/hC0BBK8FhBFugkMBAQE |
| X-IPAS-Result | A2C8AQCg9BZVPLg+cNUNT4Q0hkDFAQKBcAEBAQEBAQYBAQEBOIRQAQEEOEARCxgJFg8JAwIBAgExFAYNBgIBAReIGbE6mi4BAQEBAQUBAQEBAR2LKYR/hC0BBK8FhBFugkMBAQE |
| X-IronPort-AV | E=Sophos;i="5.11,485,1422918000"; d="scan'208";a="851357441" |
| Subject | Re: Sudoku solver |
| references | <87r3sdnw5t.fsf@elektro.pacujo.net> <mailman.188.1427358005.10327.python-list@python.org> <87fv8sndw1.fsf@elektro.pacujo.net> <mf36kv$ko6$1@ger.gmane.org> <CAPTjJmpUxitmFq7tW-LT4JtwPU4cvzgLfDMj1XD_25piJuTmtA@mail.gmail.com> <551557B3.5090102@davea.name> <mailman.252.1427463342.10327.python-list@python.org> <87twx6lf15.fsf@elektro.pacujo.net> <55156489.9050200@davea.name> |
| From | Virgil Stokes <vs@it.uu.se> |
| To | "python-list@python.org" <python-list@python.org> |
| Date | Sat, 28 Mar 2015 19:36:44 +0100 |
| user-agent | Mozilla/5.0 (Windows NT 6.0; rv:37.0) Gecko/20100101 Thunderbird/37.0 |
| mime-version | 1.0 |
| in-reply-to | <55156489.9050200@davea.name> |
| Content-Type | text/plain; charset=windows-1252; format=flowed |
| Content-Transfer-Encoding | 7bit |
| X-BeenThere | python-list@python.org |
| X-Mailman-Version | 2.1.19 |
| Precedence | list |
| List-Id | General discussion list for the Python programming language <python-list.python.org> |
| List-Unsubscribe | <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe> |
| List-Archive | <http://mail.python.org/pipermail/python-list/> |
| List-Post | <mailto:python-list@python.org> |
| List-Help | <mailto:python-list-request@python.org?subject=help> |
| List-Subscribe | <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.295.1427568892.10327.python-list@python.org> (permalink) |
| Lines | 33 |
| NNTP-Posting-Host | 2001:888:2000:d::a6 |
| X-Trace | 1427568892 news.xs4all.nl 2965 [2001:888:2000:d::a6]:38853 |
| X-Complaints-To | abuse@xs4all.nl |
| Xref | csiph.com comp.lang.python:88235 |
Show key headers only | View raw
On 27-Mar-2015 15:09, Dave Angel wrote: > On 03/27/2015 09:56 AM, Marko Rauhamaa wrote: >> "Frank Millman" <frank@chagford.com>: >> >>> So what I am talking about is called a "satisfactory" puzzle, which is >>> a subset of a "proper" puzzle. >> >> That is impossible to define, though, because some people are mental >> acrobats and can do a lot of deep analysis in their heads. What's >> satisfactory to you may not be satisfactory to me. >> >> Besides, looking for "satisfactory" patterns can involve a truckload of >> trial and error. >> > > I know, let's use "regular expressions" <g> > > If you are interested, I have written a python (wxPython GUI) for solving Sudoku problems. It even has a "hint" mode that can be used to lead you to a solution. I have tested it on the world's hardest Sudoku (published by a Finish mathematician) and it solves it very fast. I have also written another version that finds ALL the solutions to any Sudoku problem (that has a solution) using an LP approach --- this is non-trivial. However, I have not been able to give a strict mathematical proof that it does indeed find all solutions. If you wish to really understand the mathematics behind Sudoku then I suggest the book "Taking Sudoku Seriously" by Jason Rosenhouse and Laura Taalman (Oxford University Press, 2011). Unfortunately, they do not consider the LP approach in this book (an oversight IMHO). --V. Stokes
Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-25 13:39 +0200
Re: Sudoku solver John Ladasky <john_ladasky@sbcglobal.net> - 2015-03-25 11:44 -0700
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-25 13:05 -0600
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-25 21:37 +0200
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-25 14:09 -0600
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-25 22:31 +0200
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-26 09:40 +1100
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-25 18:07 -0600
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-27 20:04 +0000
Re: Sudoku solver Abhiram R <abhi.darkness@gmail.com> - 2015-03-26 08:26 +0530
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-25 21:24 -0600
Re: Sudoku solver Abhiram R <abhi.darkness@gmail.com> - 2015-03-26 08:58 +0530
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-26 14:13 +0200
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-26 16:15 +0200
Re: Sudoku solver albert@spenarnc.xs4all.nl (Albert van der Horst) - 2015-04-10 23:10 +0000
Re: Sudoku solver Sayth <flebber.crue@gmail.com> - 2015-03-27 20:39 -0700
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-28 23:50 +0000
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-29 11:12 +1100
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-29 21:59 +0100
Re: Sudoku solver Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-03-29 22:19 +0100
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-29 22:59 +0100
Re: Sudoku solver Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-03-29 14:06 +1100
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-29 15:10 +1100
Re: Sudoku solver Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-03-29 21:35 +1100
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-29 21:54 +1100
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-29 13:01 +0100
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-29 16:23 +0100
Re: Sudoku solver Christian Gollwitzer <auriocus@gmx.de> - 2015-03-29 09:57 +0200
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-30 11:54 +0100
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-29 12:25 +0100
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-29 21:03 +0300
Re: Sudoku solver Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-03-29 19:26 +0100
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-29 21:33 +0300
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-29 22:11 +0100
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-30 00:50 -0600
Re: Sudoku solver Christian Gollwitzer <auriocus@gmx.de> - 2015-03-30 09:13 +0200
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-30 01:29 -0600
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-30 12:16 +0300
Re: Sudoku solver Dave Angel <davea@davea.name> - 2015-03-30 04:16 -0400
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-30 02:57 -0600
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-30 20:13 +1100
Re: Sudoku solver Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-03-29 22:21 +0100
Re: Sudoku solver BartC <bc@freeuk.com> - 2015-03-29 23:17 +0100
Re: Sudoku solver Seymore4Head <Seymore4Head@Hotmail.invalid> - 2015-03-29 21:40 -0400
Re: Sudoku solver Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-03-26 09:50 +1100
Re: Sudoku solver Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-03-25 23:04 +0000
Re: Sudoku solver Christian Gollwitzer <auriocus@gmx.de> - 2015-03-27 07:40 +0100
Re: Sudoku solver "Frank Millman" <frank@chagford.com> - 2015-03-26 10:19 +0200
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-26 14:26 +0200
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-26 23:37 +1100
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-26 07:15 -0600
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-26 16:23 +0200
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-26 09:06 -0600
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-26 17:48 +0200
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-26 10:20 -0600
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-26 18:47 +0200
Re: Sudoku solver Dave Angel <davea@davea.name> - 2015-03-26 10:14 -0400
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-27 01:41 +1100
Re: Sudoku solver Dave Angel <davea@davea.name> - 2015-03-26 11:03 -0400
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-26 17:42 +0200
Re: Sudoku solver Pete Forman <petef4+usenet@gmail.com> - 2015-03-26 22:24 +0000
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-27 02:21 +1100
Re: Sudoku solver Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-03-26 20:42 -0400
Re: Sudoku solver Dave Angel <davea@davea.name> - 2015-03-27 09:14 -0400
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-28 00:25 +1100
Re: Sudoku solver "Frank Millman" <frank@chagford.com> - 2015-03-27 15:35 +0200
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-27 15:56 +0200
Re: Sudoku solver Dave Angel <davea@davea.name> - 2015-03-27 10:09 -0400
Re: Sudoku solver sohcahtoa82@gmail.com - 2015-03-27 11:18 -0700
Re: Sudoku solver Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-03-28 12:46 +1100
Re: Sudoku solver Larry Hudson <orgnut@yahoo.com> - 2015-03-27 16:48 -0700
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-28 01:07 +1100
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-28 01:19 +1100
Re: Sudoku solver Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2015-03-28 14:13 +1300
Re: Sudoku solver Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-03-28 12:40 +1100
Re: Sudoku solver Ian Kelly <ian.g.kelly@gmail.com> - 2015-03-28 02:24 -0600
Re: Sudoku solver Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-03-27 16:03 +0000
Re: Sudoku solver Virgil Stokes <vs@it.uu.se> - 2015-03-28 19:36 +0100
Re: Sudoku solver Dave Angel <davea@davea.name> - 2015-03-27 09:48 -0400
Re: Sudoku solver Dave Angel <davea@davea.name> - 2015-03-27 09:52 -0400
Re: Sudoku solver Chris Angelico <rosuav@gmail.com> - 2015-03-28 00:58 +1100
Re: Sudoku solver mr.smittye@gmail.com - 2015-03-29 16:39 -0700
Re: Sudoku solver Marko Rauhamaa <marko@pacujo.net> - 2015-03-30 12:24 +0300
csiph-web