A problem so tough, even the best minds hesitated! 🤯 In the 1988 IMO, West Germany submitted a number theory problem so difficult that even Australia’s top problem solvers, including George and Esther Szekeres, couldn’t crack it. Four of the country’s best number theorists worked on it for six hours—without success. Marked with a double asterisk (a rare "superhard" label), the jury debated whether it was too difficult to pose. Finally, they took the plunge and made it the last problem of the competition. The result? Only eleven students solved it perfectly, and bagged a special price. 🧠✨ Would you dare to take on a problem of this difficulty? #mathematics #imo #mathchallenge #terencetao #numbertheory #mathgenius #olympiadmath #puzzlelovers #brainteaser #mathproblems