Checkmate or coffee break? study tests caffeine boost for chess grandmasters

This study looks at whether drinking caffeinated coffee helps professional chess players think faster and make better moves during tournament games. Twelve top-level players (rated 2300-2600 Elo) will play chess after drinking either regular coffee or decaf, without knowing which they got. Researchers will measure their accuracy, reaction time, and puzzle-solving skills to see if caffeine gives them an edge.