Puzzle rules
Skyscrapers
Fill the N×N grid with building heights 1 through N so each height appears exactly once in every row and column. A clue outside the grid tells how many buildings are visible when looking from that side. Taller buildings hide shorter buildings behind them.
How to solve
Complete rules
Goal: Fill the grid with building heights 1 through N. Rules: - Each row and column must contain every height from 1 to N exactly once. - Each outside clue shows how many buildings are visible from that direction. - A building is visible only if every building before it is shorter; taller buildings hide shorter buildings behind them.