Play Today's Skyscrapers Daily Puzzle

How to Play Skyscrapers

Modes: Easy · Medium · Hard · Daily

Every cell holds one building of height 1 (shortest) to N (tallest), and each row and column is a complete 1-to-N set with no repeats.

The numbers around the board tell you how many buildings are visible from that side — a tall building hides every shorter one behind it.

Select a cell, then tap a number from the pad to place that height. Use the eraser to clear a cell.

Solved when every row and column matches all four skyline counts around the board.

Rules

Each row and each column contains the numbers 1 to N exactly once.

A clue on an edge states how many buildings you would see looking along that row or column from that side.

Taller buildings block the view of shorter ones behind them.

Rows or columns with repeated heights or a wrong skyline count are highlighted red.

Scoring

History & Origins of Skyscrapers

Skyscrapers is a grid-deduction puzzle built around a simple visibility rule borrowed from classic skyline riddles: from any edge you can see a building only until a taller one blocks the view. Solvers raise a town one row and column at a time, guided by the numbered clues printed around the board like skylines seen from four streets.

What keeps the genre durable is how little it needs. Skyscrapers can be explained in a single sentence, yet a full grid demands permutation logic, careful edge counting and quiet planning, which is why number-visibility puzzles have stayed a steady mental warm-up in newspapers and puzzle magazines for decades.

The ThinkyPlay version scales the challenge by board size, from a compact Easy 4×4 to a Hard 6×6 in which every row and column holds a full set of heights. Each board is generated with exactly one solution, and Daily Skyscrapers gives everyone the same Medium skyline to race against the clock.

Common Mistakes to Avoid

• Forgetting that each row is a permutation: repeating a height inside one row or column is always wrong, no matter how the surrounding skyline clues read.
• Checking only the near side of a line, since a row that satisfies its left clue can still break the visibility count on the far right.
• Delaying the tallest building, which anchors every skyline it belongs to and should usually be fixed as soon as its cell can be narrowed down.
• Ignoring an edge clue of 1, which pins the tallest building directly next to that side, and treating it like any other number when it is often the strongest start on the board.

Tips & Strategy

Start with the biggest clues: a 1 means the tallest building (N) is right next to that side.

A clue equal to the board size forces a perfectly rising skyline: 1, 2, 3, … N from that side.

Look for cells where only one height fits — row and column clues rule out the rest.

Place the N building early: it defines each skyline it belongs to.

Use the Hint button when stuck — it reveals one correct building height.

Frequently Asked Questions

Is Skyscrapers free to play?

Yes — Skyscrapers on ThinkyPlay is completely free, with no download and no sign-up.

What do the numbers around the board mean?

Each edge number is a skyline clue: how many buildings are visible from that side. Taller buildings hide shorter ones.

Are all puzzles solvable?

Yes — every puzzle is generated with exactly one solution, and the Hint button reveals a correct height if you get stuck.

What size should I start with?

Beginners should start with Easy 4×4, then move up to 5×5 and 6×6 as you learn to read the clues.

Does difficulty change anything besides the grid size?

Largely no: Easy, Medium and Hard are 4×4, 5×5 and 6×6 boards. Bigger grids hide far more ambiguity, and Hard draws from a pre-verified library of unique-solution 6×6 puzzles so the heaviest boards still load instantly.

Why is there no notes mode like in Sudoku?

Skyscrapers is solved mainly by placing definite buildings, so pencilled candidates add little. The red conflict highlighting already tells you when a height breaks a row, a column or a skyline clue.