Hungarian chess grandmaster Peter Leko and world number three chess player Fabiano Caruana reacted as world chess champion Gukesh D maintained his heart rate in 60s and 70s during matches. "How does he do it? Who's he?" asked Peter Leko. Caruana said, "70 BPM...That’s impressive. Of course...you can see...like me he also gets nervous. But his heart rate doesn’t elevate."