A very bad move or mistake. A typical excuse for a game one has lost is “He didn’t outplay. I simply blundered”. Such excuses are not considered good form. Mason said: the root of brilliancy is blunder.
In the following game R. Fisher played 29..Bh2??
ECHESSPEDIA
Quotes of the Day
I don’t particularly like being searched electronically. It is inconceivable that such a thing would happen in any other sport. It is fundamentally anti-chess, and I think the people who are behind this decision need their heads looked at! They are sick! They are ruining the very beauty that is chess.
Nigel Short 2016
The blunders are all there on the board, waiting to be made.
Savielly Tartakower
It isn’t important what comes off the board, but what stays on!
Yasser Seirawan
Carlsen simply plays chess well. It seems to me that in such cases people are inclined to look for some supernatural explanation, although the simplest explanation is also the most appropriate: the guy simply plays chess well.
Alexander Grischuk 2014
In the 70s Karpov was a darling of the Politburo or the political elite. So Kramnik is now. Just like the old days. But at least Karpov, unlike him, played in and won qualifying matches.
Veselin Topalov