Comments on: Test-Driving a Sudoku Solver in Ruby http://blog.coryfoy.com/2006/07/test-driving-a-sudoku-solver-in-ruby/ It's all about delivering Wed, 08 Feb 2012 16:42:53 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Sudoku Strategies http://blog.coryfoy.com/2006/07/test-driving-a-sudoku-solver-in-ruby/comment-page-1/#comment-1101 Sudoku Strategies Mon, 03 May 2010 19:40:58 +0000 http://blog.cornetdesign.com/?p=241#comment-1101 awesome job. love sudoku, its very addicting awesome job. love sudoku, its very addicting

]]> By: Sudoku Maniac http://blog.coryfoy.com/2006/07/test-driving-a-sudoku-solver-in-ruby/comment-page-1/#comment-286 Sudoku Maniac Wed, 19 Mar 2008 19:37:00 +0000 http://blog.cornetdesign.com/?p=241#comment-286 ah .. I should have read your post when I created www.sudoku-solver.net .. anyway nice job.. ah .. I should have read your post when I created http://www.sudoku-solver.net .. anyway nice job..

]]> By: nathan http://blog.coryfoy.com/2006/07/test-driving-a-sudoku-solver-in-ruby/comment-page-1/#comment-287 nathan Mon, 10 Jul 2006 08:17:00 +0000 http://blog.cornetdesign.com/?p=241#comment-287 <a href="http://sudoku.sourceforge.net" rel="nofollow">sudoku.sourceforge.net</a> has a neat solver applet.<br /><br />They also have an outline of <a href="http://sudoku.sourceforge.net/faq.htm#FAQ2" rel="nofollow">their strategy</a> which has gone through a few iterations. sudoku.sourceforge.net has a neat solver applet.

They also have an outline of their strategy which has gone through a few iterations.

]]> By: Cory Foy http://blog.coryfoy.com/2006/07/test-driving-a-sudoku-solver-in-ruby/comment-page-1/#comment-288 Cory Foy Mon, 10 Jul 2006 07:59:00 +0000 http://blog.cornetdesign.com/?p=241#comment-288 Hi Carl,<br /><br />Thanks for the comment. Surprisingly, the full puzzle test didn't stay red for all that long once the row, column and square tests were out of the way. Although, since the hard puzzle tests don't work, I guess at least one is red. ;)<br /><br />I'd love to hear some other solution strategies. It seems close with this one, but I bet I'm missing something. Hi Carl,

Thanks for the comment. Surprisingly, the full puzzle test didn’t stay red for all that long once the row, column and square tests were out of the way. Although, since the hard puzzle tests don’t work, I guess at least one is red. ;)

I’d love to hear some other solution strategies. It seems close with this one, but I bet I’m missing something.

]]> By: Carl http://blog.coryfoy.com/2006/07/test-driving-a-sudoku-solver-in-ruby/comment-page-1/#comment-289 Carl Sun, 09 Jul 2006 22:48:00 +0000 http://blog.cornetdesign.com/?p=241#comment-289 We've done this a few times, now, always in Java. My experience has been that focusing on a full puzzle too soon is less productive that working our way out - from cells, through constraints (row / column / block), to boards. It's too much work to get a board test to pass - too long in red - for me. And when we took a strictly inside-out approach, it went very smoothly, very quickly. So that's my advice. <br /><br />Also - do you want some help with solution strategies? You'll need quite a few more to be able to solve the really hard puzzles. We’ve done this a few times, now, always in Java. My experience has been that focusing on a full puzzle too soon is less productive that working our way out – from cells, through constraints (row / column / block), to boards. It’s too much work to get a board test to pass – too long in red – for me. And when we took a strictly inside-out approach, it went very smoothly, very quickly. So that’s my advice.

Also – do you want some help with solution strategies? You’ll need quite a few more to be able to solve the really hard puzzles.

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