CREATE TABLE table_203_648 (id DECIMAL, "date" TEXT, "opposition" TEXT, "result" TEXT, "score" TEXT, "brazil scorers" TEXT, "competition" TEXT)

name the first competition ever played by brazil .
SELECT "competition" FROM table_203_648 ORDER BY "date" LIMIT 1
SELECT "competition" FROM "table_203_648" ORDER BY "date" NULLS FIRST LIMIT 1