Beginner Exercise 65 / Solution

Solution.  

rescues the black group. cannot escape because of connect and die.

Black is alive.  

Since captured three stones in a row, Black has a second eye where those stones were.

Note: would probably be played at because White would realize that the connection to the marked stone means death for at least three, whereas connecting out saves two to three stones and threatens the black group further, forcing (locally) a play at the in the diagram.

Black is dead.  

Blocking at allows to kill Black.

Black is dead.  

Similarly, descending at allows to kill.