Today's tactical position at Amber 2009

How did White surprise his opponent in the position below ?

Anand-Ivanchuk, Amber 2009 (5), White to play

Answer: see 34th move from Anand

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Tactics in Amber 2009

Position I
Karjakin-Topalov (round 2) White to play and win



Position II: Morozevitch-Topalov (4). White to win.


Position III ; Black to move
Topalov-Morozevich (4). Why didn't Black take on g5 with the queen but played 1..Qb7 here ?

Answer for III:

1..Qg5? 2 Qf7+ Kh7 3 Re3 Bd7 4 Rg3! Qf6 5 Qg8+ Kh6 6 Qh8# would be a neat finish. 4..Bg4 may

be better in this variation but 5 Ne3 answers it. If Black tries 5..Re7 then 6 Qg8+ intermediary check wins.

Black avoided it by playing 1..Qb7 but lost eventually. Game followed with 2 Ng3 a4?! while 2..b4 was an interesting alternative ( 3 ab4 ab4 4cb4 Ne6!, bringing the knight to the defense ).

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