Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_29163303_4 (surface VARCHAR, score VARCHAR)
### Question:
On what surface was it the year when the score was 6–1, 4–6, [12–10]?
### Answer:
SELECT surface FROM table_29163303_4 WHERE score = "6–1, 4–6, [12–10]"