CREATE TABLE table_30982 ("Outcome" CLOB, "Year" FLOAT, "Championship" CLOB, "Surface" CLOB, "Partner" CLOB, "Opponent" CLOB, "Score" CLOB)

On what surface was it the year when the score was 6 1, 4 6, [12 10]?
SELECT "Surface" FROM table_30982 WHERE "Score" = '6–1, 4–6, [12–10]'
SELECT "Surface" FROM "table_30982" WHERE "Score" = '6–1, 4–6, [12–10]'