Problem #4

This is not the kind of problems you are used to. This is more like a "positional chess problem" than a tactics problem. Even though the position is one of attack and defense, it doesn't have anything to do with it. So I warn you: don't look for mates, or forks, or stuff like that.

The game was played in 1990, and is between Kamsky and Petursson. The game started with a King's Indian Defense.

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Kamsky - Petursson, 1990

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White to move

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To see the solution, just highlight the hidden text below.

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Solution:

1. h6 Bh8 2. f5!, and the Bishop is in a prison. White effectively played "up a piece" for the rest of the game, and Black eventually resigned in an opposite-color bishop ending. Black's Bishop never left its cage.
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