What is the date of the GC competition when the opponents are 1. FC Nuremberg?
CREATE TABLE table_51612 (
    "Date" text,
    "Opponents" text,
    "Score" text,
    "Competition" text,
    "Match Report" text
)
SELECT "Date" FROM table_51612 WHERE "Opponents" = '1. fc nuremberg' AND "Competition" = 'gc'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the date of the GC competition when the opponents are 1. FC Nuremberg? ### Input: CREATE TABLE table_51612 (
    "Date" text,
    "Opponents" text,
    "Score" text,
    "Competition" text,
    "Match Report" text
) ### Response: SELECT "Date" FROM table_51612 WHERE "Opponents" = '1. fc nuremberg' AND "Competition" = 'gc'