Island Bridges is a calm connection puzzle. Each island shows how many bridges it needs. Build straight bridges across the water between neighbouring islands — one or two between any pair — without crossing other bridges, until every island is satisfied and they all join into one connected chain. Thirty seas from 7×7 to 11×11 grow from simple chains to puzzles that need careful reasoning, and every one has a single solution.
How to play Island Bridges
Goal: Give every island exactly as many bridges as its number, with all islands connected.
Keyboard & mouse
- Drag from an island toward a neighbour to add a bridge; repeat for a double, again to remove
- Click a bridge to change it
- Arrow keys move between islands, Shift + arrow builds a bridge
- U or Ctrl+Z to undo, H for a hint, P or Escape to pause
Phone & tablet
- Swipe from an island toward its neighbour to add or change a bridge
- Tap a bridge to change it
- Undo and Hint buttons below the sea
Rules
- Bridges run straight across or down between two islands.
- Two islands can share at most two bridges.
- Bridges cannot cross each other or pass over an island.
- An island turns green when it has exactly its number, red when it has too many.
- All islands must end up in one connected group. Solve with no hints within the target time for 3 stars.
Tips and strategy
- A 1 next to a single neighbour must connect to it.
- An island whose number is twice its neighbour count needs double bridges everywhere.
- Two 1s side by side can’t only link to each other — they would cut themselves off.
