[Kde-games-devel] Killer Sudoku / Mathdoku

[Richard Llom]

Hi,

Ian Wadham wrote:
> On 25/03/2015, at 5:43 AM, Ronald Ellison wrote:
>> 
>> http://killersudokuonline.com/play.html?puzzle=D34b3vy2894&year=2013
>> 
>> This puzzle brings simple maths into Sudoku and I find it the most
>> addictive of all.
> 
> I have done some Googling around re Killer Sudoku and I must say it does
> pose an interesting design and programming challenge.  The problems are 
> to find a Killer Sudoku generator, an accurate difficulty grader and a
> Killer Sudoku solver.
> 
Actually "Killer" Soduko is just subset/variant of KenKen:
https://en.wikipedia.org/wiki/KenKen
Due to trademark issues this is often available as Mathdoku (which is also a 
more fitting name, IMHO), e.g.
https://play.google.com/store/apps/details?id=net.cactii.mathdoku
This app is open source and the source is here:
https://code.google.com/p/mathdoku/source/browse/

HTH
richard