How to Play

Goal

Connect all islands with bridges so that every island has the correct number of bridges, and all islands form one connected group.

Rules

• Each island shows a number — that's how many bridges must connect to it.
• Bridges run horizontally or vertically between two islands.
• At most 2 bridges can connect the same pair of islands.
• Bridges cannot cross each other.
• There can be no islands between two connected islands.
• All islands must be connected into a single group.

Controls

• Tap/Click an island to select it, then tap another island to add a bridge.
• Tap again to add a second bridge, or tap a third time to remove all bridges.
• Drag from one island to another to add a bridge quickly.
• Tap a bridge to remove it.
• Keyboard: Z undo, R reset, H hint.