World chess champion Magnus Carlsen won game 10 of his match against challenger Sergey Karjakin, evening the score at 5-5 following a marathon game that lasted 75 moves and over six hours. It looks like the toll of the tournament is wearing down the players since they each made mistakes.
Karjakin had the option of creating a draw via perpetual check at the 20th move and since he was in the lead in the 12-match series observers expected him to go for it. But he said after the game that he did not see it.
Today is a rest day.