There are some tactics that are more powerful than others. You hardly ever find a chess move more dangerous than the windmill.
The windmill in chess looks to gobble up numerous pieces of your opponents by using a series of discovered attacks that your opponent can respond to by a limited number of ways. Each time a piece is captured the discovered attack is set in motion again.
While you should always be on the lookout for tactics in your chess game, keep a special mental note for the windmill because it will change the course of any game in a hurry.
Watch the video below for a detailed explanation along with multiple examples.