🌆 Skyline
Find the height of every building and stroll down the street of the day.
What is Skyline
Skyline is Deduza's building Sudoku (the Skyscrapers puzzle): every number is a building height, with no repeats in a row, column or block, and lookouts on the edges say how many buildings can be seen from there — a tall building hides the shorter ones behind it. Solve it and you stroll down the street of the day. A new street every day, in three levels.
Rules
- Each cell is a building. On a 4×4, heights go from 1 to 4; on a 6×6, from 1 to 6.
- In every row, every column and every block (the thick-bordered area), each height appears only once — like Sudoku.
- The numbers outside are lookouts: they tell how many buildings you can see looking in from there. A tall building hides the shorter ones behind it.
Tips to get started
- Lookout 1: the tallest building stands right next to it.
- Lookout at the maximum: the row climbs from 1 to the top, in order.
- After the lookouts, look in each row, column or block for the height that fits in only one cell.
Frequently asked questions
- Is it free?
- Yes. Today's puzzle and the ones from the last few days are free, with no sign-up, on your phone or computer.
- Do I need to guess?
- Never. Every puzzle is computer-checked to have exactly one solution, reachable by deduction alone.
- When is a new puzzle out?
- Every day at midnight in your time zone. Everyone gets the same puzzle, so you can compare times with friends.
- I'm stuck. Now what?
- Zuza, the detective owl, gives up to 3 hints: first she points where to look, then she shows the cell and explains the deduction.
How to play, with examples and practice · Solutions from earlier days
More Deduza puzzles: Constellation · Lights · Patrol