Ultrabullet

At the tender age of 20, Penguingm1 is already one of the best hyperbullet and ultrabullet chess players in the world.

Firouzja’s surprise loss to Fedoseev this week was partly attributed to his preference for 1+0 bullet without the one second per move increment. And there are plenty who consider even 1+0 bullet too slow, and prefer to play hyperbullet, 30 seconds, or ultrabullet, 15 seconds for the entire game without increment.

Nakamura is a deadly performer at time rates ranging from 25-minute rapid right down to online "ultrabullet", where each player has 15 seconds for the entire game.