GokyoShumyoSection4Problem16/Attempts

Attempt 1 (failure)  

If - , then White loses the capturing race.

Attempt 2 (failure)  

If , then seems to kill White.

Attempt 3?  

( at ) White wins because Black has a shortage of liberties on either side.

Attempt 3 (variation 3)  

Seems that Black can get a ko battle this way...

Attempt 3 (variation 3a)  

But gives Black a shortage of liberties.