Fillomino (Cipher) by Palmer Mebane

Fillomino by Palmer Mebane


or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a composite mode for line/edge drawing and a number entry mode.)

Theme: Tic-Tac-Toe

Author/Opus: This is the 34th puzzle from our contributing puzzlemaster Palmer Mebane.

Rules: Standard Fillomino rules. Also, each letter represents a different positive integer.

Answer String: For each cell in the marked rows/columns, enter the area of the polyomino it belongs to. Enter just the last digit for any two-digit number. Start with the 3rd row, followed by a comma, followed by the 6th row. (For this puzzle, use the integer values of the area, not the encoded letters.)

Time Standards (highlight to view): Grandmaster = 6:30, Master = 11:00, Expert = 22:00

Solution: PDF; a solution video is available here.

Note: Follow this link for other classic Fillomino and this link for more variations on Fillomino puzzles. If you are new to this puzzle type, here are our easiest Fillomino puzzles to get started on.

  • Carl W says:

    A great puzzle. I’ve found the recent cipher puzzles, (both of Palmer’s Fillominos and Grant’s Pentominous), to all have excellent openings with very satisfying logic. Keep them coming!

    On this particular one, I was nearly done at 28:30 when I realized I had broken the puzzle, (a silly error failing to imagine a potential orientation of a small polyomino caused me to mis-assign the relative sizes of the two largest letters). Even with that, I thoroughly enjoyed this one.

  • skynet says:

    19 mins.Solved by nffhzvat E10P10 gb or na K

    • MellowMelon says:

      Your assumption can be proven at the start. Think of what happens if gurer vf n bar va gur pragre.

      • Neelix says:

        Oddly enough it took me a while to see that. Once I did I was kicking myself for not seeing it sooner. 🙂

        Then again, when I discovered the area of the largest polyomino I was surprised for some reason and my first thought was to wonder if I had made a mistake somewhere, but I hadn’t.

        – Neelix

      • skynet says:

        Yes.Seeing it now .Vs gung pryy vf abg n 1 ,gura B orpbzrf n ovt ertvba juvpu pnaabg or fngvfsvrq ol gur B ng gur ybjre yrsg.
        Thank you.

  • hagriddler says:

    And I hit that FAVE button once more… 🙂

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