The penultimate round of the Sinquefield Cup saw the players leave the round the way they started, relatively speaking, with Magnus Carlsen half a point ahead of Hikaru Nakamura, a point ahead of Levon Aronian, and two and a half points ahead of Gata Kamsky.
Nakamura started the day winless against Carlsen in classical chess, but armed with the white pieces and his trusty sunglasses he hoped to win and thereby leapfrog his way into first place. It was not to be. He played the very safe 4.0-0 Nxe4 5.Re1 line against Carlsen's Berlin, and although the game started to get interesting thanks to Carlsen's later advance of the f-pawn both combatants played excellently and the game finished in a repetition.
With a win against Kamsky Aronian could have caught Nakamura in second, half a point behind Carlsen, and that would have meant that his fate would be in his own hands for tomorrow's last round. (It isn't now, because even if he defeats Carlsen tomorrow Nakamura can win the tournament by defeating Kamsky.) Conditions looked good for that, as Aronian had won nicely yesterday and had the advantage of the white pieces against a desperately out of shape and discouraged opponent. Despite that, he didn't even come close to a victory. Kamsky played the Dutch, following Carlsen's lead in round 2 against Aronian, and although he didn't obtain quite as serious an edge as Carlsen did he still wound up with a good position. He also seemed to have a better feel for the play than Aronian did, but while it was enough to press it wasn't enough for a victory. (Games here, with my comments.)
The games tomorrow start two hours early, at 11 a.m. local time (12 noon ET/6 p.m. CET), as they are alotting time for a playoff in case of a tie for first. It is possible; in fact, there could even be a three-way tie for first (or next-to-last place, if you prefer) if everything works "properly". Here are the pairings:
- Carlsen (3.5) - Aronian (2.5)
- Kamsky (1) - Nakamura (3)