William Steinitz

I share the same birth year with Bobby Fischer and helping him to became the world champion in Reykjavik 1972 became one of the highlights of my chess life.

Vaclav Havel became perhaps the only head of state who played -- and won -- an actual chess game during a ceremonial opening of a chess tournament.

Enough is enough and you throw in the towel. That's the elegant way to give up in boxing. In chess, there are more ways of resigning a game before you get actually mated.