Beginner Exercise 44 / Solution

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[Diagram]

Black first, what is the result?

KarlKnechtel: B1 threatens B3 at W2 which would make the second eye false; White must block. After B3, White can't connect with W4 at B5 because of shortage of liberties; and with any other response B5 captures, preventing the requisite two eyes. Even with the capture and connection of W4, B5 still destroys the eye, so White is dead.

[Diagram]

A mistake, so White makes two eyes

The shortage of liberties threat which follows shortly after B1 at a is the only key to solve this one. If Black omits the exchange of a for b White is alive after W2.



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