RTG Problem 49 / Solution

Sub-page of RTGProblem49
[Diagram]

Solution

The solution is, Black is dead.

[Diagram]

Solution

To see that Black is dead, consider the standard connect-and-die sequence of B1 to B5. But W6 is the key move to kill.

[Diagram]

Solution (W10 at white+circle)

If B7 captures the four White stones, then W8 followed by W10 kills Black in a farmer's hat dead shape.

[Diagram]

Solution

If B7 makes an eye in the corner, then W8 connects. Subsequently, Black a is self-atari, so Black is dead.

[Diagram]

Solution

B5 is an interesting resistance. However, after W6, either Black a, White b which kills with a bulky five dead shape, or Black b, White c which kills because of shortage of liberties.

[Diagram]

Solution

If B5 descends here, then the block at W6 is sufficient. Subsequently, Black a is answered by White b, and Black b is answered by White c.


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