In a recent chess match during the Candidates tournament, a player - Hikaru - took more than 60 minutes to think on a single move. There were two possible moves that were playable at the position. After more than an hour thinking, Hikaru chose the wrong one and he eventually lost the game. After the game, the US grandmaster accused his seconds (his preparation team) of not having prepared him properly for that specific opening variation. This episodes sheds some interesting l