Games · Bridges
Bridges
Connect numbered islands with bridges. Each island's number is how many bridges it ends with. Bridges run only horizontally or vertically, can't cross each other, and at most two go between any pair of islands. Also known as Hashi or Hashiwokakero.
Controls
Bridges board
Actions
Status
Personal best
7×7 — 10×10 — 13×13 — 17×17 —
Personal-best tracking is unavailable in this browsing mode (private browsing or storage disabled). Gameplay still works for this session.
How to play
The puzzle. Numbered circles are islands. Connect them with bridges so each island ends up with exactly the number of bridges its digit shows.
The four rules. Bridges run only horizontally or vertically (no diagonals). Bridges cannot cross each other. At most two bridges connect any pair of islands. When solved, all islands form a single connected network.
Click an island, then click a neighbor to add a single bridge. Click the same pair again to upgrade it to a double bridge. Click a third time to remove it. Or drag from one island to a neighbor for the same result.
Over-saturation. If an island has more bridges than its number, it turns rose-pink and the digit goes red. The puzzle won't complete until you clear the violation.
Hint. Press the Hint button (or H) for a one-line explanation of the next deducible bridge. The page never places the bridge for you.
Undo, Redo, Erase. Full move history with Cmd/Ctrl+Z and Cmd/Ctrl+Shift+Z. Erase removes the most recent bridge (same as a single Undo).
No-guess. Every puzzle on this page is uniquely solvable by pure logical deduction — you'll never have to flip a coin.
Nothing leaves your browser. The puzzle, your bridges, the timer, and your personal best all stay on this page. Generated fresh each time you press + New puzzle.