[SilasX]

The model of the WW problem assumes you know what Waldo looks like (but not where he is), so that part is taken care of.

Under the protocol I gave, you can’t cheat by using a fake Waldo, because each time there’s a fifty percent chance the prover will ask you to remove the screen, which would reveal you’re not using (only) the original page.

(Keep in mind you do the protocol many times with a new position in each one.)

[gnarcoregrizz]

I see, that makes more sense