Sunglasses by Yuki Kawabe

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Sunglasses by Yuki Kawabe

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Theme: Bridge Symmetry and Logic

Author/Opus: This is the 1st puzzle from guest contributor Yuki Kawabe.

Rules: Shade some cells to make sunglasses. The sunglasses consist of a bridge (a given line, in red) and two lenses made out of orthogonally connected black cells that are symmetric with respect to the perpendicular bisector of the bridge. Two lenses may not share an edge, but can intersect at a point. Cells with the bridges are not shaded, except at the bridge ends. The numbers on the right and bottom edges of the grid indicate the number of shaded lens cells in that row or column.

Also see this example:

Sunglasses

Answer String: Enter the length in cells of each of the black lens segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma. This example has the key “22,121,12”.

Time Standards (highlight to view): Grandmaster = 3:00, Master = 3:45, Expert = 7:30

Note: Follow this link for other shading puzzles.

  • Jevon says:

    I think I like this type of puzzle, but the three examples of this week have felt a little lacking. I liked this one the best of the three (and so I faved it), but that was a vote for the type rather than the token.

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