While I have to congratulate Viswanathan Anand for his comprehensive victory over Vladimir Kramnik, the Kramnik fan in me is disgruntled. All those draws - sometimes very short ones - against the tailenders (generally he feasts on Dutch "food" at Wijk aan Zee), but now he decides to uncork a significant novelty and to play his best chess of the tournament? Gee, thanks. Anyway, it was a fine game by the world champion, showing that for the moment at least, he still has his great predecessor pretty well figured out. (A wonderful fringe benefit of this would be Kramnik's giving up on the Petroff, especially as he has shown himself quite able to play more lively chess this past year.)
Anand wasn't the only beneficiary of this result; Magnus Carlsen benefited too, and his short draw with Black against Peter Leko suddenly put him in clear first with a round to go. Alexei Shirov could have joined Carlsen in first, but he too drew with Black, against Sergey Karjakin, and enters the last round tied with Kramnik for second, half a point behind the leader.
All but one of the other games were drawn. The sole exception was Jan Smeets' savage beating of van Wely with White in yet another 6.Bg5 Najdorf massacre. (It reminds me of when I was a kid 25 years ago, when 6.Bg5 freely walked the Earth, terrifying hapless Najdorfers everywhere.) That result leaves the "Dutch championship" up in the air.
Standings After Round 12:
1. Carlsen 8
2-3. Kramnik, Shirov 7½
4. Anand 7
5-7. Nakamura, Karjakin, Ivanchuk 6½
8-9. Leko, Dominguez 6
10. Caruana 5
11-13. Short, Tiviakov, van Wely 4½
14. Smeets 4
And now, the all-important last round pairings:
van Wely - Anand
Short - Smeets
Nakamura - Tiviakov
Carlsen - Caruana
Ivanchuk - Leko
Shirov - Dominguez
Kramnik - Karjakin
Carlsen has the easiest last round pairing of the big three, at least based on his opponent's rating, but I wouldn't be surprised if Carlsen, Shirov and Kramnik all won their games. (It wouldn't be surprising if Anand won either, but since van Wely, unlike Kramnik this round and Shirov two rounds ago, isn't contending for first, I'm not sure he'll bother trying. I'll stop whining now.)
Moving on to the B-group, all the top guys drew, so Giri continues to lead with 8½ points, a point ahead of L'Ami, Ni Hua, and now Naiditsch (he defeated A. Muzychuk) too.
In the C-group, Li Chao drew almost as quickly as you can read this sentence. His 9-move slugfest with Kuipers benefited them both: the draw wound up clinching him clear first by the round's end, while Kuipers is turning his 9-round IM norm into a longer and longer one. (It may not matter in the long run: one needs 27 games' worth of IM norms, so unless he finds a 14-round tournament to complement this 13-rounder, he'll still probably need three events to earn the title.) As for the chase pack, their chase is over. Three players were within 1½ points at the start of the round and thus mathematically alive in the chase for first. One was Robson, but he only drew. The other two, van Kampen and Vocaturo, both lost, so that was the end of their hopes. Gupta won his game and is tied with Robson for second, but as Li Chao has 9 and they have 7½, the fight for first is finished.
More info here, the tournament site is here, and Anand-Kramnik (ouch!), with my notes, is here.