CREATE TABLE table_63326 ("Tie no" CLOB, "Home team" CLOB, "Score" CLOB, "Away team" CLOB, "Date" CLOB)

What's the tie number of Chelsea when they were home?
SELECT "Tie no" FROM table_63326 WHERE "Home team" = 'chelsea'
SELECT "Tie no" FROM "table_63326" WHERE "Home team" = 'chelsea'