Skyline Grid
Outer numbers count the towers visible from that side.
Controls and saving
Tap a cell to select it. Use arrow keys to move, number keys to enter, M for notes and Delete to erase. Notes let you record your own candidates.
Progress is saved on this device when storage is available.
How to play
Tap an empty cell, then press a height below. A height cannot repeat in a row or column. A number outside the grid is how many towers you see from that side; a low tower behind a taller one is hidden. A “1” means the nearest tower is the tallest, and N means the heights rise in order. A side with no number has no clue. Hints reveal a strategy, a cell, then the answer.
Learn more
These puzzles are generated for this site. Tests check that each has a single solution reachable by logic alone: row and column elimination plus the idea of listing every order that fits the clues and removing heights that appear in none.