From WPC unofficial wiki


Place a number from 1 to X (integers only) into each cell so that each number appears exactly once in each row and column. (X is the number of cells in each row.) Each number represents a skyscraper of its respective height. The numbers outside the grid indicate how many skyscrapers can be seen in the respective row or column from the respective direction; smaller skyscrapers are hidden behind higher ones.

(Rules and example from PGP IB)

Rule variations[edit]

  • Skyscrapers with Parks: Some cells may remain empty. Invented by Tim Peeters in 1999.[1]
  • Greater Than Skyscrapers from WPC 2016/Round 2: Some greater-than symbols are given between edgewise adjacent cells.

History of the puzzle[edit]

Invented by Masanori Natsuhara (Japan) in 1992 in the Puzzler magazine. Originally entitled "ビルディングシティパズル" (Building City Puzzle).


See List of Skyscrapers variants.

Appearances in the past WPCs[edit]

Listed here are appearances of classic to almost-classic Skyscrapers. For variants, see list of Skyscrapers variants#Appearances in the past WPCs.