There could have been two clear winners in the second round of the semifinals: Fabiano Caruana quickly obtained a winning position by playing a novelty, while a little later Vincent Keymer also reached a winning position after initially making good use of Praggnanandhaa Rameshbabu's inaccurate play in severe time trouble.

Vincent Keymer | Photo: Lennart Ootes
But after Caruana allowed So to escape with a draw, Keymer even managed to lose his winning position.
The winner commented on what had happened:
The loser was understandably less pleased.

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Photos: Lennart Ootes
In the second game of the day, Caruana uncorked a spectacular novelty in the Berlin Defence of the Ruy Lopez:
Caruana, however, did not look as assured as usual – much as had been the case at the Sinquefield Cup. He continued for several moves with his strong preparation, but when So deviated with ...f5?! and followed up with several other suboptimal moves, Caruana used up a great deal of time despite his position becoming increasingly favourable. Between moves 24 and 33, he let his entire advantage slip away, allowing So to escape with a draw. After So had failed to make use of a large opening advantage in the first round, the roles were therefore reversed in game two.
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Wesley So was far from pleased and had to fight hard after Fabiano Caruana's novelty. | Photo: Lennart Ootes
After the two draws between So and Caruana, the pair played an additional blitz game. So avoided a repeat of the line from the game they had just finished, but was still unable to generate sufficient counterplay. The game was used to determine the winner of the first phase. Caruana received two points for his victory and will therefore take a narrow 8-6 lead into the upcoming rapid and blitz phases.
While that matchup still appears fairly open, Keymer already faces a daunting task: Praggnanandhaa leads 9-3 and is regarded as the clearly stronger rapid and blitz player. Keymer's results at the faster time controls this year have been far from good. He was unable to score many points in those sections at either the GCT or Norway Chess.
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Wesley So lost to Fabiano Caruana in the bonus blitz game. The GCT Finals now move on to the rapid and blitz phases. | Photo: Lennart Ootes / GCT