tactics quiz

Hartmut Riedel offers yet another tactics quiz based on the 2010 Corus tournament.  You.ve seen some of these before, perhaps?  But repetition is good....

Fire on Board

If you're rated at least 1600 and haven't already read Fire On Board: Shirov's Best Games, please do yourself a favor and buy a copy. Even though Shirov has reached the ripe old age of 37, he hasn't lost his touch. His last round game against Dominguez (agreed drawn in a crazy time scramble) was pure genius.

Shirov-Dominguez, Corus 2010

After 21...h6; White to move

Black has the two bishops, the small pawn center (e6 and d6) that Sicilian players love, and a natural plan of attacking White's king.  White has a monster pawn on g6 and the semi-open h-file, and it's his move: every move is vital in these opposite-side castling positions.

White's problem is that a direct sacrifice like 22.Rxh6?! gxh6 23.Qxh6 (threatening mate on h7) fails to 23...Bc8).  

White can simply grab the d-pawn, but Rybka tells me that Black gets good activity for the pawn after 22.Qxd6 Qxd6 23.Rxd6 b4.  It's possible that this is objectively the best line:--as of today, who knows?

So what move did Shirov find?

And if you can't stand the suspense, the full game is here.

Genius Vishy

Anand has been playing a brilliant game against Kramnik, going on right now.

UPDATE:  Anand won in style.

Post-mortem comments by the modest genius