Beginner Exercise 137 / Solution

Solution  

After two throw-ins, White plays a double atari, , supported by the marked stone. Now ko captures at and are miai - after Black defends one ko ( at a or ), White takes the other ko first.

Quiet endgame play  

If White plays this way, then all of Black's stones live. This should be chosen only if ko threat situation is bad or you are comfortably ahead in the endgame.