GoneProblem3/Solution

White to play and win  

makes a second eye. The only winning play.

Staunch defense  

puts up strong resistance. is the only play. In fact the sequence up to is a one lane road.

All over  

Each player has two plays left, which can be played out in several different ways, but in the end Black is left without a play.

Alternate defense  

Another one lane road. is tesuji, attacking Black's potential eye. After the rest is miai.

Possible finish  

Again, leaves Black without a move.

/Failure