Turris · Free in your browser
Skyscrapers: Turris
Every clue counts the buildings it can see
The rules
- Fill every cell with a building height from 1 to the size of the board.
- Every height appears exactly once in each row and once in each column — the same rule a Sudoku row follows.
- Each number outside the grid says how many buildings are visible looking into that row or column — a taller building hides every shorter one behind it.
- Only a repeated height in a line, or a finished line that does not match its clue, is pointed out as you play. Nothing is checked before a line is complete — so a board with no warnings on it can still be unfinished.
- Tap a cell, then a height on the number pad; the same height again clears it. On a keyboard, type the height, and move with the arrow keys.
- Every puzzle here is solvable by reasoning alone. You never have to guess.
- Got it
How to play here
Three ways to play
Campaign
Chapters that start gently and bring in one new idea at a time.
Daily puzzle
A new board every day, the same for everyone. Solve every one in a month and that month's trophy is yours.
Endless
Keep going as long as you like, in Easy, Medium, Hard and Expert.
Common questions
Is Turris free?
Yes. You can play here without paying and without an account. Ads keep the lights on.
Where is my progress saved?
In this browser, on this device. If you clear the site data, your progress goes with it. A free Solvarium account keeps it safe.
Does it work on a phone or tablet?
Yes. It runs in any current browser on phones, tablets and computers, and the board resizes to fit the screen.
Does every puzzle really have one solution?
Yes. Every board goes through a solver before it ships, and anything with more than one solution is thrown out.