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

### Instruction:
what is the date when the surface is clay and the result is 6–7 (4–7) , 1–6?

### Inputs:
table_name: table, columns: ['Edition', 'Round', 'Date', 'Against', 'Surface', 'Opponent', 'Result']

### Response:
SELECT Date FROM table WHERE Surface = clay AND Result = 6–7 (4–7) , 1–6