Double Spiral Galaxies by John Bulten

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Spiral Galaxies by John Bulten

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Theme: Astronomical Clock

Author/Opus: This is the 26th puzzle from our contributing puzzlemaster John Bulten.

Rules: Variation of Spiral Galaxies. In addition to the standard rules, some circles are shaded gray and must belong to galaxies containing two gray circles, not one, with the circles in rotationally symmetric spots for those galaxies.

Double Spiral Galaxies Example by Thomas Snyder

Answer String: Enter the number of cells in each connected group (between bold lines) in the marked columns. Separate each column’s entry from the next with a comma. The example (using rows) has the answer “52,11131”.

Time Standards (highlight to view): Grandmaster = 6:15, Master = 10:15, Expert = 20:30

Note: Follow this link for classic Spiral Galaxies puzzles on this website and this link for variations on Spiral Galaxies puzzles. If you are new to this puzzle type, here are our easiest Spiral Galaxies Puzzles to get started on. More Spiral Galaxies puzzles will soon be found in The Art of Puzzles 2.

  • Nathan says:

    Phew! Got stuck on that a few times after making bad assumptions, but after thirds restart the path became clear and a beautiful solution slowly unfolded. Thanks for rewarding puzzle!

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