[David Easton] ''05 Jan 2005'' '''Sudoku''' is a puzzle included in '''The Times''' newspaper in the UK since November 2004. The rules are extremely simple: In a 3x3 grid of boxes, each with 3x3 cells, fill in the digits 1..9 so that each digit occurs exactly once in each row, column, and box. I have written a tool in Tcl that allows: * Sudoku puzzles to be generated * Sudoku puzzles to be played * Sudoku puzzles to be solved [DPE] ''25 Feb 2005'' Version 0.7 has been released as a Tcl/Tk starkit with no compiled extensions. [http://myweb.tiscali.co.uk/davidelizabeth/tcl/sudoku/sudoku1.gif] [http://myweb.tiscali.co.uk/davidelizabeth/tcl/sudoku/sudoku2.gif] [http://mini.net/files/sudoku.jpg] It is freely available from: http://myweb.tiscali.co.uk/davidelizabeth/tcl/sudoku/index.html [DPE] ''27 May 2005'' The above link fails each day when the 150Mb bandwidth limit is reached - sorry about that, it is a victim of its own success, so if it does not work, try it in the morning UK time. -[RS]: Or this backup: http://mini.net/files/sudoku.kit ---- '''Sp!''' ''8th March 2005'' Thank you!!! I have been addicted to these puzzles for a while now and this is just brilliant. I generate half a dozen gifs and paste them into word to take to work with me. Took a little searching to find this wiki (found your home page first) but very glad I did. [AvL] ''March 21th 2005'': I join in to this praising. Anyway, I've also made some changes to my copy: changed gray and darkgrey both to blue (grey was too little contrast on my monitor), and I made bind'ings for digit-keys to invoke the respective button. Also, I've made the cells larger (from 25 to 35) and changed the buttons from image to penfont-text (-width 2). I've got some more "feature"-requests: * undo (at least one level: I often write a number to wrong cell, then have to erase it and try to restore what was in the cell before. * shading complete lines/rows/boxes (optionally) * right-click on buttons should toggle a disabled-state, so I can visually mark the digits that have already been placed 9 times. Upon new game or clear board, all shall be enabled. * reset to current game: just remove all gray (blue) numbers, but leave the black ones. These features do not give more extra help, than what one could do on paper. Plus another feature that *does* exceed the possibilities on paper: * optionally do auto-check after each big digit. I've not yet understood the prog well enough to implement these goodies myself. [DPE] ''21 April 2005'' I've only just noticed the above posts. Thanks for the positive feedback. Now that you've set me a challenge, I'll see if I can find some time to do some more improvements! ---- David, I am intending to port this to Mac OS X as a self-contained file, such that it can be simply double-clicked by the most ignorant of users. I couldn't find your email anywhere to obtain your permission to do so. If you have any qualms about this, please post them to this site. Thanks, Dan Schellenberg [DPE] ''21 April 2005'' Dan, feel free to use this as you wish - just reference this page or my web site somewhere. I can put a MAC executable on my web site if you think it would be of interest. [PT] 19-May-2005: Very cool!! [RJ] 19-May-2005: VC indeed. David, I suggest that this starkit be included under Games at [sdarchive]. Very nice work. [DPE] ''27 May 2005'' Thanks. I'll soon release version 0.8 that allows a page of puzzles to be created as a PDF document - I'll try to get around to adding it to [sdarchive] at that time. ---- See also [Playing sudoku] for some mathematical musings. [http://mini.net/files/sudoku.tcl] is a compaction of v 0.7 (single Tcl file, no image loading or saving) tweaked to run on the [iPaq]. ---- [[ [Category Games] ]]