Puzzle #424: Flip Flop Bridges
Posted January 29, 2010 • #flipflop #bridges
In Flip Flop Bridges, place a bridge at every unnumbered intersection to connect a pair of bridges horizontally or vertically using the clues given.
Comments
David Millar • 02/16/10 7:32 am
Hey Bill,
A bridge should either connect two numbers or connect 1 number and run off the edge of the map. Bridges cannot stop at a point between two numbers or turn 90 degrees midway.
In other words, every non-numbered intersection should contain either a vertical bridge or a horizontal bridge.
An earlier flip-flop bridges puzzle contains a sample solution. Just click the "flipflop" tag to find it.
I hope that helps!
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Bill • 02/15/10 10:54 pm
I'm missing something obvious. Does a bridge connect two numbers, or can it stop at a point between two numbers? Can it run off the edge?