Bridges

Link the numbered islands so each one carries exactly as many bridges as it says.

⏱5–10 min🧠Easy🔎Logic & Deduction🖨Printing Recommended

How to play

Join the islands with bridges so every island has exactly as many bridge ends as its number.
Bridges run across or down between two islands, never diagonally.
No more than two bridges may join the same pair of islands.
Bridges may not cross each other, and may not pass over an island.
When you have finished, every island must be reachable from every other one.

None of these give anything away — they are just how people who do these all the time get unstuck.

An island showing 8 must run two bridges in all four directions. So must a 6 with only three neighbours, and a 4 with two. Start there.
A 1 in a corner with one neighbour, or a 3 against an edge, is settled before you have thought about anything else.
Once a bridge is drawn, cross off every bridge it would now block - that is where the next forced move usually comes from.
Two islands showing 1 that can only see each other may never be joined: it would finish them both off in a little network of their own.
Near the end, check connectivity rather than counting. A move that seals a group off from the rest is wrong however well the numbers add up.

Have a go at this one first — it is smaller than the real thing. The answer key is hidden until you ask for it.

Show the answer key

9 bridges, 13 bridge ends in all.

What to expect on Patreon

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Monday Weekly puzzle Logic, number and word puzzles — a different kind each week.
Wednesday Detective mystery A case to crack: suspects, clues, and one answer that fits.
Friday Weekend Challenge A bigger one, built to last you all weekend long.

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