Skyscrapers
Place towers of different heights so that each edge sees the right number of skyscrapers, with taller ones hiding shorter ones.
One puzzle a day, the same for everyone
The day's Skyscrapers grid, 5 × 5, is drawn from the date. Only one arrangement satisfies all the edge clues, and it's the same for everyone.
- The same Skyscrapers grid for everyone, until midnight.
- The edge clues are enough for a single solution, verified in advance.
- The result you share is your time, never the heights.
- Completing a challenge, any of the four, extends your streak by one day.
The Free play / Daily challenge toggle sits at the very top of the board. The challenge never touches your free-play best times, and free play stays unlimited.
Five steps to your first grid
- Each height once. Cells hold heights from 1 to N, exactly one of each per row and per column.
- Read an edge clue. It tells you how many towers can be seen from that side: a taller one hides every shorter one behind it.
- Start with the extremes. A “1” clue places the tallest tower right away; an “N” clue forces the full ascending order.
- Count the visible ones. From an edge, you count a tower each time it rises above all the ones before it.
- Cross-check all four edges. Top, bottom, left, right: the clues confirm one another all the way to the unique solution.
What you need to understand
An input for every way to play
Mouse and trackpad
Click a cell, then a height on the keypad. The edge clues stay visible all around.
Touchscreen
The grid and its clue borders fit on a phone; the tap targets stay comfortable.
Keyboard
The arrow keys move the selection, 1 to N place a height, 0 or Backspace clears.
Five things you won't work out on your own
- A clue of 1 puts the tallest tower right behind that edge: it hides everything else.
- A clue equal to N forces the full ascending order as seen from that side: 1, 2, 3, … up to N.
- The two opposite clues on the same line can't add up to too little: two “1”s facing each other is impossible.
- Count a tower each time it rises above all the ones before it; the others are hidden and don't count.
- Cross-check all four edges: a height placed to satisfy the top clue can also be verified from the left.
Skyscrapers, in detail
Each number around the grid tells you how many skyscrapers can be seen from that side. A taller tower hides every shorter one behind it.
Each cell holds a height from 1 to N, and each height appears exactly once per row and per column — a Latin square, like sudoku without the boxes.
Yes. We generate a complete grid, compute its edge clues, then remove as many as possible while keeping a single solution, verified by a solver.
With the extreme clues: a “1” puts the tallest tower right behind that edge, and an “N” forces the full ascending order as seen from that side.
4 × 4 and 5 × 5 in free play. The daily challenge is 5 × 5.
It's your fastest solve time, saved per size.
The day's 5 × 5 Skyscrapers grid is drawn from the date: the same one for everyone. The result you share is your time.
No. The Skyscrapers puzzle is a widespread logic genre, not a brand. Our grids come from our own code.
Keep exploring the site
All four games play right on the page, with no account and no download.