SkyScrapers
How to play a 4 by 4 Skyscraper Puzzle:
Build towers in each of the squares provided sized 1 through 4 tall
Each row has skyscrapers of different heights (1 through 4), no duplicate sizes
Each column has skyscrapers of different heights (1 through 4), no duplicate sizes
The rules on the outside (in grey) tell you how many skyscrapers you can see from that direction
Taller skyscrapers block your view of shorter ones
Below is an overhead shot of a completed 4 by 4 city block. To help illustrate the different sizes, I’ve coloured each size of skyscraper a different colour. Notice that each row has exactly 1 of each size, and that each column has one of each size as well.