Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What was the maximum average of the episode with a Chinese title 古靈精探b?

### Inputs:
table_name: table, columns: ['Rank', 'English title', 'Chinese title', 'Average', 'Peak', 'Premiere', 'Finale', 'HK viewers']

### Response:
SELECT MAX Average FROM table WHERE Chinese title = 古靈精探B