Quirin Zech potted to 175,000 from the hijack and Konstantin Razinkov called out of the big blind.
On the 6♥K♦K♥ flop, Razinkov check-called a bet of 125,000 from Zech to see the Q♣ fall on the turn, Razinkov checked again, then Zech shoved for 665,000.
Razinkov needed about 2 seconds to make a decision, and did so by letting his cards go.