As you all may have noticed, I’ve finally started posting Hidoku puzzles on a daily basis!
They can be found every day, Monday to Friday, on the Hidoku page!
Daily Hidoku
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It appears that the 20 Jan puzzle is not unique.
George, if you are certain that there are multiple solutions, please provide at least two of them.
George, I think the 20 Jan puzzle has a unique solution, but it is a very tough one.
I’ve posted a walkthrough in the forum:
http://www.djapedjape.com/sudoku/forum/viewtopic.php?t=1396
(But if you want to try it once more and don’t want a spoiler, you’ve been warned. ;))
A little suggestion:
For these daily Hidoku files please add the letter “h” in front of the filenames (i.e. “h2009…”), so that it will help us manage the files easier (otherwise they always mix together with the daily sudoku puzzles, both starting as “2009…”).
Also, for the solution files please change the filenames as they currently clashes with the Kendoku solutions (both “solution.png”). Again adding an “h” (e.g. “hsolution.png” or “hs.png”) would be desirable.
Thanks for all the nice puzzles!