Kariakin-Shirov saw another theoretical battle in the 6...Bc5 Spanish, which has been one of the opening tabiyas of the event. [...] The most remarkable feature of the game, and a testament to the depth of Kariakin's preparation, is that when the draw was agreed at move 39, his clock showed 1.52 remaining, some twelve minutes more than he started the game with!
Steve GiddinsKariakin-Shirov saw another theoretical battle in the 6...Bc5 Spanish, which has been one of the opening tabiyas of the event. [...] The most remarkable feature of the game, and a testament to the depth of Kariakin's preparation, is that when the draw was agreed at move 39, his clock showed 1.52 remaining, some twelve minutes more than he started the game with!
Steve Giddins