Tower Logic — Skyscraper Height Puzzle
Place towers 1-4 so no height repeats per row/column and clues show visible towers from each edge.
How to play
- Each row and column must contain heights 1, 2, 3, and 4 with no repeats.
- The blue numbers around the border are 'visibility clues' from each edge.
- A clue of 1 means only the tallest tower (4) is visible right at the edge.
- A clue of 4 means you see towers 1, 2, 3, 4 in ascending order.
- Click a cell to select it, then press 1–4 to set its height.
Place towers of heights 1–4 in a 4x4 grid. No height may repeat in any row or column. The blue numbers around the edge show how many towers are visible when looking from that direction (taller towers hide shorter ones behind them).
Frequently asked questions
- What does the clue number mean?
- The clue tells you how many towers you can see when looking along that row or column from that edge. A tall tower hides all shorter towers behind it.
- How do I enter numbers?
- Click a cell to select it (turns blue), then press 1–4 on the keyboard.