A position that cannot be broken down. Typically it refers to an endgame situation where one side has what would normally be a winning material advantage, but cannot win due to the fortress.
ECHESSPEDIA
Quotes of the Day
You can’t look too annoyed or they’ll look for the mistake you’ve made. A lot of the time it’s about looking for these opportunities and if you give them a clue, the good players will find it.
Magnus Carlsen 2016
Tactics is what you do when there is something to do; strategy is what you do when there is nothing to do.
Savielly Tartakower
When I am in the USSR, I have the feeling that every tram conductor plays chess better than I do.
Hans Ree
I detest the endgame. A well-played game should be practically decided in the middle-game!
David Janowski
Maybe I had something of Capablanca. Why should I prepare when I have ideas?
Svetozar Gligoric 1989 NIC