From the Foxger’s Den #28: Slitherlink

Slitherlink by Grant Fikes

PDF

or solve online (using our beta test of Penpa-Edit tools in edgex mode where left click+drag draws lines and right click marks X’s)

Theme: Deja Vu?

Rules: Standard Slitherlink rules.

Answer String: Enter the length in cells of each of the internal loop segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma.

Time Standards (highlight to view): Grandmaster = 1:10, Master = 1:30, Expert = 3:00

Solution: PDF

  • Aaron Chan says:

    What is the theme referring to? If it’s an old puzzle on this site I don’t remember which one. Anyways, is anyone else having problems accessing this site lately? It has been rather unstable for me.

    • Avatar photo drsudoku says:

      Look at different sections of this puzzle. Do you see anything repeating?

      I’m aware of various server problems and have been trying to fix them for over a week while on the road which hasn’t been easy.

  • Chris G says:

    I’m impressed that the two sides give such different layouts even though they use the same numbers! I’d love a harder one on this theme! 1:15

  • James McGowan says:

    It took me a while to notice the extent of the Deja Vu, great idea.

  • chaotic_iak says:

    02:18. I need to devise a faster way to mark things in Slitherlink.

    Very nice theme. 🙂 Initially I thought of some kind of rotational symmetry of numbers. Apparently rotational symmetry of givens plus translational symmetry of numbers 😀 Must be pretty difficult to pull off?

    • Avatar photo drsudoku says:

      My guess is that the density of givens on the borders helped pull it off. Until I try to write one myself, I’m not sure what the limitations will be.

  • Neelix says:

    Normally with loop puzzles I use GIMP’s align to grid function to keep the loop neat. This time I couldn’t get the grid to align to the puzzle at all. I ended up converting it to a specific puzzle string for SGT’s loopy and solving it there.

    If anyone wants it the string I used to specify this puzzle in loopy is:
    10x10t0:33a202232aa1g2d32d1g1aa202332a2233a202232aa1g2d32d1g1aa202332a22

    – Neelix

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