Xanatos Gambit - Television Tropes & Idioms →
I like that this trope is named after David Xanatos, who for those of you who remember, is one of the mainĀ villainsĀ in Disney’s Gargoyles series (which I used to watch a LOT of).
Originally via Why Loki Won in The Avengers, which has some very clever (albeit geeky) sleuthing going on!