GM Master Class:Andersson,Ulf

Here is an instructive game from GM Andersson who wins a game that would otherwise go unnoticed as his opponent has no fancy title and posesses a modest club player's rating. Yet there are many little things to be learned.

How does a GM win games he is supposed to?
What are the typical mistakes of the normal amateur?

Let us see the game.

Andersson,U (2582) - Mass,E (1966)
Closed Catalan 8.Qd3[E07]
15th OIBM Bad Wiessee GER (1.13), 29.10.2011
Black played the rare 8..dc giving up the d5 central point. This was met by solid practical play and the result was a roughly equal position.

Position 1
White has a well placed central Ne5/Ne4 knight pair while black has the passive bishop pair. What do you recommend for black?
-21...f6 kicking away at least one of those knight to start with. Then the passive Be8 can emerge on f7-g6 or h5 even
-21...a5 restraining the queenside
-Something else

Black to Play

21.Rac1

Position 2
The knight pair has shuffled over from e5-e4 to c5-c4. What is next for white?
-24.h4 and if allowed h5 to clamp the kingside light squares
-24.b4 gaining space on the queenside
-Somthing else.

White to Play

23...Bf7

Position 3
White has long range bishop to play against black knight. But the intended d-file invasion does not look possible and the c5 pawn clamp is being undermined. What should white do?

White to Play

28..Kxf7