On what surface was it the year when the score was 6–1, 4–6, [12–10]?
CREATE TABLE "doubles_43_26_17" (
  "outcome" text,
  "year" real,
  "championship" text,
  "surface" text,
  "partner" text,
  "opponent" text,
  "score" text
);
SELECT "surface" FROM "doubles_43_26_17" WHERE "score"='6–1, 4–6, [12–10]';