Bridges

from Simon Tatham's Portable Puzzle Collection


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Most modern browsers should support WASM. I've had reports of success from:

If this puzzle isn't working in one of those browsers (or a later version), check to see whether you have any local configuration that might have turned off WebAssembly completely, or some kind of blocking software that might have prevented the WASM code from being downloaded in the first place.

(For example, in Firefox, it's possible to turn off WASM completely by setting javascript.options.wasm to false in the about:config interface. If you've done that, or something analogous in another browser, this puzzle won't run.)

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In particular, try opening your browser's Javascript error console and then reloading this page, and tell me if it reports any error messages.

Also, if your browser has a network diagnostic tab, try the same experiment, to make sure it is successfully loading both of the auxiliary files bridges.js and bridges.wasm.


Draw horizontal or vertical bridges to link up all the islands. Bridges may be single or double; they may not cross; the islands must all end up connected to each other; the number in each island must match the number of bridges that end at that island (counting double bridges as two). Note that loops of bridges are permitted.

Click on an island and drag left, right, up or down to draw a bridge to the next island in that direction. Do the same again to create a double bridge, and again to remove the bridge if you change your mind. Click on an island without dragging to mark the island as completed once you think you have placed all its bridges.

Full instructions | Back to main puzzles page


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(last modified on Tue Sep 14 01:48:08 2021)