Three three-way switches and a lamp

There is an old puzzle that asks how to wire three three-way switches in such a way that each of them can switch on or off a lamp.

I cannot find the solution - is there a web page about this?

Heinz

Reply to
heinrich_neumaier
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Apparently, 615000 of them.

Reply to
Andrew Gabriel

formatting link

Reply to
Ken

(1) This is NOT the puzzle about the three switches that you find everywhere. In fact, the wiring is not trivial.

(2) The link does not give the 3x3-way switch solution; only the easy

2x3-way plus 1xfour-way solution.

Heinz

Reply to
heinrich_neumaier

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