Connect the islands
Bridges
Build one connected network without crossing bridges.
THE OBJECTIVE
Think it through
Join all islands in one network. Each number is the total bridges touching that island. At most two bridges can join a pair, and bridges cannot cross.
YOUR CONTROLS
Make your move
Drag horizontally or vertically between islands. Click an existing connection to cycle the bridge count.
On a phone, use Touch: mark / reverse for a right-click action. Number puzzles include an on-screen number pad.
Choose an easier or harder grid in Type. Use Undo freely. Reveal solution shows the answer; it is a learning aid, not a hint. The timer starts on your first board interaction and stops automatically when you solve the puzzle. Use Finish practice to save an unfinished attempt. Complete 60 seconds of unrevealed practice with at least 3 board actions for the daily streak. Your last puzzle saves in this browser when device storage is available.
Puzzle engine by Simon Tatham and contributors · MIT licence · Full rules ↗