It was a long time ago, before the Internet. In those fun student years, we had a company of fans of intellectual games. In the dormitory of the universe of St. Petersburg, boys with phenomenal memory were loaded with various knowledge. Once one of us was given a beautifully published and printed on one huge sheet "Crossword for a thousand words". We were four, our total IQ was over 700, we accepted the challenge. When filling out the crosswords, we encountered this definition: "Animal family of cats." There were six letters in the word, the second one was verification, so far unknown. “If it will be ‘e’, then ‘gepard’; if it will be ‘c’, then ‘the whole’; if it will be ‘e’, and we, as usual, will want to penetrate, then ‘serval’; and there are no other options,” we decided and continued to guess a thousand words.

A few hours passed. We were tired, we used encyclopedias several times, we entered 999 words. We only have this cat. His second letter was a soft sign. We have checked. We have checked. A soft sign. So, a mistake or a mistake, we thought and hung the almost resolved crossword in the hallway. There was something to be proud of.

A few days later, during our next intellectual fun, a good acquaintance, a general favorite, a trio student entered the hallway. “Here’s it!” she was impressed by looking at the huge crossword filled, and then looked up and added, “Just, boys, you forgot one word!” We ran into the courtyard. Oh, this is the untranslatable feeling of the fundamental uselessness of seven hundred IQ points! A thousand words was “Lion”.