BQM 391

Third attack  

This is the third attack. is the only way for life, and will be elaborated later.

 

char: However, I can't find a way to kill this. Does anyone have any idea on how to proceed?

 

char: The best try is probably here, but after , again I don't see how white can kill.

MrTenuki: The answer is given in the Tripod Group page: White would play at a, and the result is a bent four in the corner.

Mistake  

is the wrong way to answer . After the exchange of and , is possible. The result is bent four in the corner, and Black is dead.

 

char: the diagram above is what it says at the tripod group page, and actually many other sources about tripod group.

However, without making the / exchange in the diagram above, wouldn't black have enough liberties?

Dieter: I agree and feel awkward to do so.

unkx80: I guess I introduced the error when I WikiMasterEdited that page two years ago. Meanwhile, nobody corrected me!