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

### Instruction:
Which Rank has a Lost smaller than 12, and a Played larger than 20, and an Avg Points larger than 1.73?

### Inputs:
table_name: table, columns: ['Rank', 'Club', 'Seasons', 'Played', 'Drew', 'Lost', 'Points', 'Avg. Points', 'Goals for', 'Goals against', 'Goal diff']

### Response:
SELECT MAX Rank FROM table WHERE Lost < 12 AND Played > 20 AND Avg. Points > 1.73