It was a great day for Boris Gelfand, who defeated Sergey Karjakin in brilliant style - and with Black, no less. This puts him in great shape to make the final, where he'll meet the winner of the match between Ruslan Ponomariov and Vladimir Malakhov, who drew their game.
The latter game was well-played and had some fight, but it's the first game that will deservedly receive the most attention. To avoid the Petroff, Karjakin played the Bishop's Opening. He didn't get much (if anything), but he couldn't have imagined the bombshell that him on move 11. Gelfand thought for about 14 minutes before playing it, and it was time very well spent. Karjakin wasn't losing yet, but his position became very difficult. Gelfand's strong move seized the initiative, and his opponent never managed to neutralize it. To break the attack, Karjakin had to sacrifice a bunch of pawns, after move 33, down three pawns in an endgame, he gave up.
You can replay it (along with the draw) here (with my notes) - and you should!