RTG Problem 68 / Solution

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[Diagram]

Solution

Making the exchange of B1 and W2 before the placement at B3 is essential for the kill. White is unable to capture the B3, B5, and B7 chain in a connect-and-die due to a shortage of liberties, but capturing the four stones with W8 only results in a bulky four dead shape.

[Diagram]

Solution

If W2 here, then making a placement at B3 first prevents any complications that may arise after White a.

[Diagram]

Solution

Here, Black's corner is safe.


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