Spiral Stumper Series is a $5$-puzzles series taken from the Final Round of a local (national) contest, KPK, which has been ended recently and authored by me. The theme is spiral and each puzzle is standalone (there will be no meta, etc.)

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Study the 2 examples given on the left and solve the puzzle on the right!
The solution for each puzzle can be uniquely determined.
(Click the image to enlarge it.)


2 Answers 2


Here's the correct solution, coloured so it's easy to see!

I forgot to do progressive hints. :(

The solution!

  • $\begingroup$ Yep, that's exactly the correct answer, well done! :D $\endgroup$
    – athin
    Sep 30, 2019 at 23:30

The rule is:

The 1st row and 1st column say how many "PKP" substrings are there in a particular row or column. The 2nd row and 2nd column say how many "KPK" substrings are there in a particular row or column

The full answer table is given below. The black & bold ones were already filled-up in the question :

enter image description here

  • $\begingroup$ nice first answer. +1! $\endgroup$ Sep 29, 2019 at 14:57
  • 1
    $\begingroup$ There's a mistake in the 5th column rot13(XCX gjvpr). $\endgroup$
    – Jens
    Sep 29, 2019 at 19:00
  • $\begingroup$ Ah...I must have made some silly mistake...unable to trace it back now without redoing the whole thing completely... $\endgroup$
    – SamRoy
    Sep 29, 2019 at 21:11
  • $\begingroup$ Welcome to PSE and this is a very nice answer! :D The rule is correct, for the full answer it's actually almost correct: there are only a very few cells need to be changed, see if you could redo it :) $\endgroup$
    – athin
    Sep 30, 2019 at 0:44

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