Beginner Exercise 60 / Solution

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[Diagram]

Solution

The clamp at B1 is a tesuji for expanding eye space. W2 at B3 is captured with B3 at W2.

W4 may be postponed in practice - White has another option of playing at B5.

B5 can be at a.

[Diagram]

Inferior (W6 at B1)

B1 cut is an unnecessary sacrifice. To save the three stones White has to play at W2. Subsequently B3 and B5 are a tesuji combination, and Black lives with B7. Now hane at a is gote. Caution: Do not play B3 at B5: White can connect at B3 and Black cannot make the eye on the top.

(For advanced readers: W6 at B7 is still better for White. Black captures at B1, White recaptures - see the diagram below)

[Diagram]

Inferior

Black lives with a and b miai. Now White's first line is better protected on both sides than the Solution diagram above. The combined benefit for White is larger than Black's gain on the third line.


[Diagram]

Failure

B1 does not expand his eye space enough.



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