Double Spiral Galaxies by Thomas Snyder [Bonus]

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Spiral Galaxies by Thomas Snyder

Theme: 1, 2, 3, 4

Author/Opus: This is the 330th puzzle from Thomas Snyder, aka Dr. Sudoku.

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 rows. Separate each row’s entry from the next with a comma. The example has the answer “52,11131”.

Time Standards (highlight to view): Grandmaster = 4:45, Master = 8:30, Expert = 17:00

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 can be found in The Art of Puzzles 2.

  • JohnJBulten says:

    In addition to the lovely tableau and exquisite galaxies, this puzzle also uses a trap I wanted to put into a Spiral Galaxies but never worked out to my satisfaction. This one did it right. Plus, this time I fell headlong into the trap for awhile.

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