Try being a chess player. You're playing a game and completely winning, then your opponent abruptly pauses for five minutes and suddenly turns into a god. Watch as he suddenly plays absolutely ridiculous-looking moves that even Bobby Fischer would have struggled to see, and all after just a couple of seconds of "thinking."
(Translation for non-chess players: the butthurt, sore loser of an opponent has opened another tab and is using the engine to tell him what the best moves are.)
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