speed chess; blitz chess
Refers to chess played with a very short time control, typically where each player has only a few minutes for the entire game.
He is good at speed chess and checkmated his opponent in five minutes.
I like playing blitz chess online.
Compound of 早指し (はやざし, 'quick play') and チェス ('chess'). The term is a straightforward Japanese coinage for speed chess.