Bridges Puzzle
join every island · bridges never cross

Play Bridges — Island Connecting Logic Puzzle

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Drag from an island to a neighbourTap a gap to cycle 0 → 1 → 2Right-click removes

How to play Bridges

Each circle is an island. Join them with bridges so that every island has exactly as many bridges as its number.

Bridges go straight across or straight down, never diagonally, and never cross another bridge or an island. Two islands can share one bridge or two (a double bridge) — or only one in the simpler version. When you finish, every island must be joined to every other, directly or through others.

Drag from an island towards the one you want to join, or tap the water between them. Islands go green when they are full.

How to play Bridges

Join the islands with straight bridges so each island has as many bridges as its number, nothing crosses, and every island is connected.

The rules

  1. Each circle is an island with a number from 1 to 8.
  2. Draw bridges between islands in straight lines, across or down. A bridge may not cross another bridge or pass over an island.
  3. Two islands may be joined by one bridge or two (in the simpler version, only one).
  4. Each island must have exactly as many bridges as its number, and all the islands must be connected into one group.

Playing here

  1. Choose classic (up to two bridges between islands) or the simpler one-bridge version, a size and a difficulty, then press New Puzzle.
  2. Drag from an island towards a neighbour to add a bridge; do it again for a double; a third time removes it. You can also tap the gap between two islands. Right-click takes a bridge away.
  3. Islands turn green when they have all their bridges. The Progress panel shows how many separate groups are left — the goal is one.
  4. Hint adds a bridge and explains the reasoning.

Tips

The full guide, with a worked example and common mistakes: How to play Bridges.

Questions

Can bridges go diagonally?

No — only straight across or straight down.

Do all islands have to be connected?

Yes. When the puzzle is finished you can travel from any island to any other along the bridges.

What is the one-bridge version?

A simpler variant for younger players where two islands share at most one bridge. Numbers are then never bigger than 4.

How do I solve a puzzle from a book?

Open the Bridges Solver, place each island and its number, and press Solve to step through every deduction.

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