skyscrapers

DESCRIPTION

Skyscrapers is a logic game.
The goal of the game is to position the skyscrapers in the grid according to some simple rules:

- The heights of the skyscrapers ranging from 10 to 50.
- Each row or column can not contain two skyscrapers of the same height.
- The external number to each row or column indicates the number of skyscrapers that are visible from that point in the row or column.
- A tallest skyscraper hides a lower skyscraper.