How to play Bridges

The goal

The rules

• Bridges run straight across or straight down, from one island to the next one along.
• Two islands can share one bridge or two, never more.
• Bridges can’t cross each other or pass over an island.
• When you’re done, you must be able to walk from any island to any other over the bridges.

Building

• Drag from an island toward its neighbor to add a bridge. Drag again for a second one, and once more to take them away.
• Or tap the gap between two islands to do the same, or tap one island and then its neighbor.
• Undo takes back your last change.

Checking your work

• An island turns green when it has exactly its number of bridges, and red when it has too many.
• The puzzle is solved when every island is green and they all connect.

Tips

• An island with only one neighbor must send all its bridges to it.
• A 4 with two neighbors, a 6 with three or an 8 with four needs double bridges on every side.
• Two 1s can’t join each other, and two 2s can’t share a double bridge: that pair would be cut off from everything else.

Difficulty

• Easy: a 7×7 grid with 12 islands. Normal: 9×9 with 20. Hard: 11×11 with 30.
• Every puzzle is new and has exactly one solution. Your best times are kept for each difficulty.

Keyboard

• Arrow keys move between islands, Shift+arrow builds a bridge that way, Escape deselects, and Ctrl or ⌘+Z undoes.

Questions

Strategy guides