Skyscrapers by JinHoo Ahn

Skyscrapers by JinHoo Ahn


or solve online (using our beta test of Penpa-Edit tools)

Theme: Three’s Company

Author/Opus: This is the 47th puzzle from our contributing puzzlemaster JinHoo Ahn.

Rules: Standard Skyscrapers rules.

Difficulty: 4 stars

Time Standards (highlight to view): Grandmaster = 8:30, Master = 11:00, Expert = 22:00

Solution: PDF and solving video.

Note: Follow this link for classic Skyscrapers puzzles and this link for variations on Skyscrapers puzzles. If you are new to this puzzle type, here are our easiest Skyscrapers Puzzles to get started on. More Skyscrapers puzzles can be found in The Art of Puzzles, in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli, and in the e-book Skyscrapers by Ashish Kumar.

  • Chandrachud says:

    Solid puzzle … took me an hour to get through on pure logic

  • kk says:

    I solved it on my 4th attempt, no idea why made mistakes on 3 attempts.
    It would be a great functionality for penpa to show where the mistake appeared. It shouldn’t be too difficult, as it already keeps the entire stack, unless it’s not trivial to implement checking correctness of a partial solution?

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