Feedback and Questions
I've received a lot of interesting comments and questions from Sudoku fans over the last few years and this page
is where I try to answer them. I'm also directing Str8ts feedback here. Please feel free to drop me a note on the side of the page. Or you can email me directly at andrew@str8ts.com.
Post a Comment or Question here...
Thursday 9-Dec-2010
... by: Hans Berkenkamp, Germany
if you open your MODERATE EXAMPLE and click the button TAKE STEP you come to the following explanation in the documnetation field:
INNIE - BLOCKS of 2 boxes... Box 2 = 1 at C4 (many inside:1 outside:2, inside value:89 outside:6)
INNIE - BLOCKS of 2 boxes... Box 7 = 6 at G6 (many inside:1 outside:2, inside value:84 outside:17)
excusing my bad english and low information about Killer Sudoku I like to understand your explannations in the documnetation field.:
I do not understand how you get to the INSIDE- and OUTSIDE VALUES.
Therefore it is unclear for me why C4 = 1 and G6 = 6.
Thanks for your reply in advance
Hans Berkenkamp
Have you seen this page?
http://www.sudokuwiki.org/Innies_and_Outies
Andrew Stuart
Monday 6-Dec-2010
... by: Grok, CA
"Pressing 'Enter' on the keyboard after clicking on Take Step is a quick way to step through all strategies."
When I press enter after clicking on Take Step nothing happens. Is there some secret to this? (I'm using an iMac.)
Thursday 4-Nov-2010
... by: Dave Allen, Kent, England
With the impressive existing programs in your solver, could you add a backtracking feature, roughly as follows. Entries made in the recording grid would be recorded independently, in sequence. At any stage, this sequence of entries could be undone, one at a time, with consequent reconstruction of the possible candidates in the working grid.
One could then backtrack the solving process to a point where one or both of an illegitimate pair of entries was made, and recover from there.
Thursday 4-Nov-2010
... by: Bill Jefferson, Sydney Nova Scotia Canada
I am very impressed with your site.
Could you please tell me what the initals BH25 stand for?
I am trying to understand the X-Wing procedure.
Thank you,
Bill Jefferson
X-WING (Col->Row) 4 taken off G2, based on BH25
X-WING (Col->Row) 4 taken off G5, based on BH25
Thursday 30-Sep-2010
... by: John, Canada
Sunday 26-Sep-2010
... by: Kim, USA
Monday 13-Sep-2010
... by: Patrick John OMahony (pomahony2), Texas
Hello,
--
I just wanted to say "Thank You" for having this site up and working.
--
It has helped me understand "Sudoku", how sudoku works and how I should work sudoku.
--
You should get some kind of "public service" award.
--
Again, ... Thank You very much
--
Pat OMahony, 112 University Village Drive, Richardson, TX. 75081
pomahony2@gmail.com
--
end
Wednesday 4-Aug-2010
... by: Dale Kloss, Portland,Oregon,USA
Sunday 1-Aug-2010
... by: Will Gibson, Canada
Note: a number of heuristics, weightings and statistical methods are used to determine if a puzzle is fit for publication and the grade alone does not determine this.
I was wondering if you could elaborate on this.
Tuesday 27-Jul-2010
... by: Joe Defries, Abbotsford, BC, Canada
Or am I missing out where to find the ranking for user-entered puzzles there?
Cheers!
Joe Defries