Daily Skyscraper

How to play Skyscraper

Skyscraper is a Latin-square logic puzzle. Each cell holds a building of height 1 to N (where N is the grid size), with every height appearing exactly once in each row and column. The numbers around the edge are visibility clues: standing at that edge and looking along the row or column, they tell you how many buildings you can see. A taller building completely hides every shorter one behind it.

THE RULES

1. Every row must contain each height 1–N exactly once.
2. Every column must contain each height 1–N exactly once.
3. Each edge clue equals the number of buildings visible from that side — taller buildings hide shorter ones behind them.
4. Edges without a clue leave the visibility count up to you.

BEGINNER STRATEGY

• A clue of 1 means the tallest building (height N) sits right at that edge — nothing else could hide it.
• A clue of N means every building is visible, so the line must climb in order: 1, 2, 3 … N from that edge.
• Work the extremes first. Clues of 1 and N pin a whole cell or line; from there, row/column elimination fills the rest like Sudoku.
• Bigger clues push tall buildings back. A clue of 2 on a 5-wide row means height 5 cannot be in the first cell — at least one shorter building must be seen before it.

ABOUT THIS DAILY

Every visitor on the same UTC day sees the same grid, seeded from the date. Your progress is saved to this browser — close the tab and come back later. A new puzzle unlocks at midnight UTC. If you enjoy the puzzle, GridJoy on Google Play has 17 more puzzle types (Sudoku, Killer Sudoku, Kakuro, and more) plus a ghost companion that grows with you as you solve.