Bullet Grandpa only needed one win against Daniil Dubov

Daniil Dubov won 99 games out of 100 against Arizona amateur Josh Smith, who plays online as BulletGrandpa. The game he lost was number 28. It ended a run of 27 straight Dubov wins and took the sweep bonus off the table.

The match had a second scoreboard

Chess.com reported that Dubov earned $10,000 for taking part. A perfect sweep would have paid $20,000. Smith could have denied the bigger payout with a draw. He did it with a win, then still had another 72 games to play.

Watch game 28 with the clocks on

Each player had one minute and no increment. Compare the clock when the position starts to turn in game 28 with the same moment in one of the earlier games. In bullet, an easy move you can play immediately may matter as much as the board position, especially when you have to make those decisions over and over.