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

### Instruction:
What is the largest number of wickets when there are more than 630 maidens and a best of 7/72?

### Inputs:
table_name: table, columns: ['Name', 'Career', 'Matches', 'Overs', 'Maidens', 'Runs', 'Wickets', 'Average', 'Best']

### Response:
SELECT MAX Wickets FROM table WHERE Maidens > 630 AND Best = 7/72