A heraldic piece displaying different identity symbols on each side. The piece may be flipped over at the close of a move (or as a move in itself) and assume its alternate identity.
ECHESSPEDIA
Quotes of the Day
First-class players lose to second-class players because second-class players sometimes play a first-class game
Siegbert Tarrasch
Ten years ago I said that 2010 would be the end, chess would be exhausted. But it is not true, chess will not die so quickly.
Vishy Anand 2008
The winner of the game is the player who makes the next-to-last mistake.
Savielly Tartakower
Vugar Gashimov deserves to be immortalized!
Mahir Mamedov 2014
I think that the World Champion should try to defend the quality of play more than anyone else!
Boris Spassky