BeginnerExercise346/Solution

This choice of saves one stone only to see more stones captured. Defending at and only makes things worse. Depending on the rest of the board, black might do better to sacrifice just the one stone or just the string of three stones.

 

 

hnishy Black should play this way to take sente. and capture two stones and also help to defend the upper left corner and the left side (not shown in diagram).