Fillomino by Grant Fikes

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Fillomino by Grant Fikes

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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. Note that the default puzzle info is too long — even for an url shortener — so copy and paste all the text in this file into the “Load” option in the upper-right of the penpa-edit interface to access.)

Theme: Eight Hearts

Author/Opus: This is the 164th puzzle from our contributing puzzlemaster Grant Fikes.

Rules: Standard Fillomino rules.

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 15th row, followed by a comma, followed by the 11th column.

Time Standards (highlight to view): Grandmaster = 14:00, Master = 22:00, Expert = 44:00

Solution: PDF

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

  • Carl W says:

    1hr, 1min. Thanks for the great puzzle, Grant. Besides solving this, I think I’m equally impressed with myself for entering the answer string correctly on my first try.

    • Jack Bross says:

      I got it in correctly, for which I think I have to thank Croco-Puzzle. Years of brutally punishing my scores for mistakes on strings have finally made me careful.

      Also, I definitely turned the puzzle sideways on my computer to make good use of monitor space, which suddenly meant I had to be careful about the 6’s and 9’s…

  • egrieg says:

    I loved this puzzle. Made me want to push the fave button even before i started solving. A great puzzle troughout and very rewarding 🙂

  • skynet says:

    43:16 …Just in time to make the expert category…What a delightful puzzle!

  • A really enjoyable puzzle, despite messing up the 7s near the bottom middle in the same way three times before finally noticing that there was another choice there.

  • chaotic_iak says:


    Unfortunately not my cup of tea; a giant puzzle that is giant solely for size, not to express any particular idea or gimmick. No particularly memorable trick as well.

  • Naama says:

    So I type in the answer string and I hit the “solved?” button and it goes “solved” and I’m like, wow, that’s an achievement, typing in the string with no mistake!!

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