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

### Instruction:
What was the Surface when the Score was 6–4, 2–6, 3–6?

### Inputs:
table_name: table, columns: ['Outcome', 'Date', 'Tournament', 'Surface', 'Opponent in the final', 'Score']

### Response:
SELECT Surface FROM table WHERE Score = 6–4, 2–6, 3–6