Miai exercise 4

Position at move 51  

White has made a mistake at . Where can Black play next, making miai of which two moves to save his stones?

unkx80: White probably made another mistake earlier. There is no way for White to capture the Black chain, even if White plays elsewhere.

Dieter: correct. The exercise is drawn from a pro commentary of an amateur game, with Black missing this opportunity. Miai thinking might have helped.

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