The Steps, Tower 6 of 25

Tower 6 of 25 · The Steps · Old Town · standard wiring
switches 2 · par 2 ★★★
Turn on the Lights! Lit at par with 2 switches, and not a single hint.

This tower can be lit in 4 different ways; the best of them take 2 switches.

This picture as a command file · How it works

One snapshot per switch, in the original viewer.