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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.)


enter image description here

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.)

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

I forgot to do progressive hints. :(

The solution!

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

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  • $\begingroup$ nice first answer. +1! $\endgroup$ – Omega Krypton Sep 29 at 14:57
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    $\begingroup$ There's a mistake in the 5th column rot13(XCX gjvpr). $\endgroup$ – Jens Sep 29 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 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 at 0:44

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