Tuesday, August 24, 2021

Puzzlerium tour: Skyscrapers (Double Block)

This hybrid seems to provide enough room for packing some interesting deductions. 

  



Theme: The lone unknown

Rules: Place a number from 1 to N-2 into each cell of the square grid so that each number appears exactly once in each row and column, where N is the length of the square's side. Each number inside the grid represents a skyscraper of its respective height. The outside clues indicate how many skyscrapers are visible in that direction; smaller skyscrapers are hidden behind taller ones. A question mark indicates any value from 1 to N-2.

Then, shade in the unused cells. Outside clues double up as double block clues - each clue representing the sum of numbers (including the "sum" of a single number) between the two shaded cells in the row or column the clue points at. 

For the puzzle to solve uniquely, both Skyscrapers and Double block rules have to be applied on each clue. 


About: This hybrid was invented by Anurag Sahay and debuts with this post.

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