List the competitor ranking with 900 defense points.
CREATE TABLE table_3049 (
    "Seed" real,
    "Rank" real,
    "Player" text,
    "Points" real,
    "Points defending" text,
    "Points won" real,
    "New points" real,
    "Status" text
)
SELECT COUNT("Seed") FROM table_3049 WHERE "Points defending" = '900'
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: List the competitor ranking with 900 defense points. ### Input: CREATE TABLE table_3049 (
    "Seed" real,
    "Rank" real,
    "Player" text,
    "Points" real,
    "Points defending" text,
    "Points won" real,
    "New points" real,
    "Status" text
) ### Response: SELECT COUNT("Seed") FROM table_3049 WHERE "Points defending" = '900'