What a round! Magnus Carlsen had been in first place at the Candidates', either shared or alone, from round 4, and he entered today's round with a half point lead over Vladimir Kramnik and a full point ahead of Levon Aronian. With White against the erratic, self-destructive Vassily Ivanchuk he seemed well situated to increase his lead, especially with Kramnik having the black pieces against Aronian.
Instead, another "miracle" happened - or two. Kramnik came up with a fascinating plan with 10...f5 in a typical IQP position, and it looked good enough to equalize. Practically, it was even better. Aronian's best choice at a certain moment early on was to force a draw by repetition (starting with 15.Bxb5 f4, as I recall), but in his tournament situation that would have been hard to do. So he played on and was worse, but soon the board exploded with tactics. Kramnik made an error that could have allowed Aronian to escape with a draw, but missed it. Instead of finding that move - 21.Ne5 - Aronian played 21.e4?, and Kramnik was very ready for that one. A very nice tactical sequence left Kramnik with a probably winning technical endgame...but again Kramnik slipped. Aronian had several ways to draw the resulting piece-down ending (all based on the wrong-colored bishop + rook pawn combination), but when he played 50.g6?? his last chance was gone. It's hard to know what was going on in Aronian's mind, but it looks as if he was trying to win. It's tough to balance fighting spirit and self-preservation, and in this case Aronian chose wrongly - especially as it was clear by this point that Carlsen would have to struggle to draw.
Turning to that game, Carlsen played the opening poorly with White and was slightly worse. After Ivanchuk's odd 18...a5, however, Carlsen equalized, but then by the end of the first time control Chuky, with Black, was again somewhat better. Still, it wasn't clear for a long time what the result should be, and not only due to the ever-present concern that Ivanchuk would do something completely insane. This time around, he didn't, and when Carlsen failed to maintain his usual insanely high level of technical prowess the Ukranian great managed to convert his material advantage. Overall, Ivanchuk played very well, while Carlsen immediately labeled his play "absolutely disgraceful."
Thanks to that loss, and Kramnik's remarkable run in the second cycle (4.5/5; three in a row) it is now Kramnik who leads by half a point, with Carlsen in second and Aronian a point and a half behind with two rounds to go. Tomorrow is the rest day, and then they finish up on Easter Sunday and Monday. Before giving the full standings and pairings for the last two rounds, a quick note about the other two games, games which could in fact prove very important.
Boris Gelfand and Peter Svidler drew a game without fireworks, but that looked like a model squeeze by Gelfand before the inaccurate 32.Qa7. According to Svidler, 32.Qb3, maintaining the squeeze, would have kept an enduring advantage based on the bishop pair and the possibility of b4-b5. Teimour Radjabov-Alexander Grischuk was also drawn, and as in the Gelfand-Svidler game White may have missed an opportunity for more. Nothing much happened until 40...h5, but that was a serious error allowing White to target Black's f-pawn after 41.h4. Maybe 43.Rxf5+ would have given Radjabov better winning chances than 43.Bxf5; as it was, Grischuk had to wriggle before reaching the theoretically drawn ending with a rook against a rook and f- and h-pawns.
Why were these games important? The answer is that the tournament regulations have a very unfortunate provision for settling a first-place tie: tiebreaks! This is the second-most important event in the chess calendar, behind only the world championship itself, and the geniuses at FIDE are going to allow the challenger's identity to be decided by which player won more games, or how the tailender does in the last round against the next-to-last placed finisher. This is just insane, especially as plenty of far less prestigious events run playoffs in case of a tie.
About the games: I managed to goof my back up (for the second straight year; let's hope this doesn't become a tradition!), so for now I can't sit long enough to work up an in-depth analysis of the games. If things improve I may try to make up for it tomorrow, during the rest day; otherwise, my apologies.
Standings After Round 12:
1. Kramnik 8
2. Carlsen 7.5
3. Aronian 6.5
4. Svidler 6
5-6. Grischuk, Gelfand 5.5
7. Ivanchuk 5
8. Radjabov 4
Round 13 Pairings (Sunday):
- Radjabov - Carlsen (Clearly a big opportunity for Carlsen to bounce right back.)
- Grischuk - Aronian (Will Aronian burn his bridges trying to stay alive, or just play "correct" chess?)
- Kramnik - Gelfand (Gelfand has traditionally matched up well with Kramnik, and rarely loses games to him at a classical time control.)
- Svidler - Ivanchuk
Round 14 Pairings (Monday):
- Carlsen - Svidler
- Ivanchuk - Kramnik (Will Ivanchuk rise to the occasion again, or (indirectly) harm Carlsen a second time?)
- Gelfand - Grischuk
- Aronian - Radjabov